pax_global_header00006660000000000000000000000064135744116330014521gustar00rootroot0000000000000052 comment=104a0ae91ff816fe6dc8914c1fb90fe32321ae9f gabs-2.3.0/000077500000000000000000000000001357441163300124375ustar00rootroot00000000000000gabs-2.3.0/.github/000077500000000000000000000000001357441163300137775ustar00rootroot00000000000000gabs-2.3.0/.github/FUNDING.yml000066400000000000000000000000771357441163300156200ustar00rootroot00000000000000# These are supported funding model platforms github: Jeffail gabs-2.3.0/LICENSE000066400000000000000000000020401357441163300134400ustar00rootroot00000000000000Copyright (c) 2019 Ashley Jeffs Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. gabs-2.3.0/README.md000066400000000000000000000137121357441163300137220ustar00rootroot00000000000000![Gabs](gabs_logo.png "Gabs") [![godoc for Jeffail/gabs][godoc-badge]][godoc-url] Gabs is a small utility for dealing with dynamic or unknown JSON structures in Go. It's pretty much just a helpful wrapper for navigating hierarchies of `map[string]interface{}` objects provided by the `encoding/json` package. It does nothing spectacular apart from being fabulous. If you're migrating from version 1 check out [`migration.md`][migration-doc] for guidance. ## Use ### Import Using modules: ```go import ( "github.com/Jeffail/gabs/v2" ) ``` Without modules: ```go import ( "github.com/Jeffail/gabs" ) ``` ### Parsing and searching JSON ```go jsonParsed, err := gabs.ParseJSON([]byte(`{ "outter":{ "inner":{ "value1":10, "value2":22 }, "alsoInner":{ "value1":20, "array1":[ 30, 40 ] } } }`)) if err != nil { panic(err) } var value float64 var ok bool value, ok = jsonParsed.Path("outter.inner.value1").Data().(float64) // value == 10.0, ok == true value, ok = jsonParsed.Search("outter", "inner", "value1").Data().(float64) // value == 10.0, ok == true value, ok = jsonParsed.Search("outter", "alsoInner", "array1", "1").Data().(float64) // value == 40.0, ok == true gObj, err := jsonParsed.JSONPointer("/outter/alsoInner/array1/1") if err != nil { panic(err) } value, ok = gObj.Data().(float64) // value == 40.0, ok == true value, ok = jsonParsed.Path("does.not.exist").Data().(float64) // value == 0.0, ok == false exists := jsonParsed.Exists("outter", "inner", "value1") // exists == true exists = jsonParsed.ExistsP("does.not.exist") // exists == false ``` ### Iterating objects ```go jsonParsed, err := gabs.ParseJSON([]byte(`{"object":{"first":1,"second":2,"third":3}}`)) if err != nil { panic(err) } // S is shorthand for Search for key, child := range jsonParsed.S("object").ChildrenMap() { fmt.Printf("key: %v, value: %v\n", key, child.Data().(string)) } ``` ### Iterating arrays ```go jsonParsed, err := gabs.ParseJSON([]byte(`{"array":["first","second","third"]}`)) if err != nil { panic(err) } for _, child := range jsonParsed.S("array").Children() { fmt.Println(child.Data().(string)) } ``` Will print: ``` first second third ``` Children() will return all children of an array in order. This also works on objects, however, the children will be returned in a random order. ### Searching through arrays If your structure contains arrays you must target an index in your search. ```go jsonParsed, err := gabs.ParseJSON([]byte(`{"array":[{"value":1},{"value":2},{"value":3}]}`)) if err != nil { panic(err) } fmt.Println(jsonParsed.Path("array.1.value").String()) ``` Will print `2`. ### Generating JSON ```go jsonObj := gabs.New() // or gabs.Wrap(jsonObject) to work on an existing map[string]interface{} jsonObj.Set(10, "outter", "inner", "value") jsonObj.SetP(20, "outter.inner.value2") jsonObj.Set(30, "outter", "inner2", "value3") fmt.Println(jsonObj.String()) ``` Will print: ``` {"outter":{"inner":{"value":10,"value2":20},"inner2":{"value3":30}}} ``` To pretty-print: ```go fmt.Println(jsonObj.StringIndent("", " ")) ``` Will print: ``` { "outter": { "inner": { "value": 10, "value2": 20 }, "inner2": { "value3": 30 } } } ``` ### Generating Arrays ```go jsonObj := gabs.New() jsonObj.Array("foo", "array") // Or .ArrayP("foo.array") jsonObj.ArrayAppend(10, "foo", "array") jsonObj.ArrayAppend(20, "foo", "array") jsonObj.ArrayAppend(30, "foo", "array") fmt.Println(jsonObj.String()) ``` Will print: ``` {"foo":{"array":[10,20,30]}} ``` Working with arrays by index: ```go jsonObj := gabs.New() // Create an array with the length of 3 jsonObj.ArrayOfSize(3, "foo") jsonObj.S("foo").SetIndex("test1", 0) jsonObj.S("foo").SetIndex("test2", 1) // Create an embedded array with the length of 3 jsonObj.S("foo").ArrayOfSizeI(3, 2) jsonObj.S("foo").Index(2).SetIndex(1, 0) jsonObj.S("foo").Index(2).SetIndex(2, 1) jsonObj.S("foo").Index(2).SetIndex(3, 2) fmt.Println(jsonObj.String()) ``` Will print: ``` {"foo":["test1","test2",[1,2,3]]} ``` ### Converting back to JSON This is the easiest part: ```go jsonParsedObj, _ := gabs.ParseJSON([]byte(`{ "outter":{ "values":{ "first":10, "second":11 } }, "outter2":"hello world" }`)) jsonOutput := jsonParsedObj.String() // Becomes `{"outter":{"values":{"first":10,"second":11}},"outter2":"hello world"}` ``` And to serialize a specific segment is as simple as: ```go jsonParsedObj := gabs.ParseJSON([]byte(`{ "outter":{ "values":{ "first":10, "second":11 } }, "outter2":"hello world" }`)) jsonOutput := jsonParsedObj.Search("outter").String() // Becomes `{"values":{"first":10,"second":11}}` ``` ### Merge two containers You can merge a JSON structure into an existing one, where collisions will be converted into a JSON array. ```go jsonParsed1, _ := ParseJSON([]byte(`{"outter":{"value1":"one"}}`)) jsonParsed2, _ := ParseJSON([]byte(`{"outter":{"inner":{"value3":"three"}},"outter2":{"value2":"two"}}`)) jsonParsed1.Merge(jsonParsed2) // Becomes `{"outter":{"inner":{"value3":"three"},"value1":"one"},"outter2":{"value2":"two"}}` ``` Arrays are merged: ```go jsonParsed1, _ := ParseJSON([]byte(`{"array":["one"]}`)) jsonParsed2, _ := ParseJSON([]byte(`{"array":["two"]}`)) jsonParsed1.Merge(jsonParsed2) // Becomes `{"array":["one", "two"]}` ``` ### Parsing Numbers Gabs uses the `json` package under the bonnet, which by default will parse all number values into `float64`. If you need to parse `Int` values then you should use a [`json.Decoder`](https://golang.org/pkg/encoding/json/#Decoder): ```go sample := []byte(`{"test":{"int":10,"float":6.66}}`) dec := json.NewDecoder(bytes.NewReader(sample)) dec.UseNumber() val, err := gabs.ParseJSONDecoder(dec) if err != nil { t.Errorf("Failed to parse: %v", err) return } intValue, err := val.Path("test.int").Data().(json.Number).Int64() ``` [godoc-badge]: https://godoc.org/github.com/Jeffail/gabs?status.svg [godoc-url]: https://godoc.org/github.com/Jeffail/gabs [migration-doc]: ./migration.md gabs-2.3.0/gabs.go000066400000000000000000000640641357441163300137140ustar00rootroot00000000000000// Copyright (c) 2019 Ashley Jeffs // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // Package gabs implements a wrapper around creating and parsing unknown or // dynamic map structures resulting from JSON parsing. package gabs import ( "bytes" "encoding/json" "errors" "fmt" "io" "io/ioutil" "strconv" "strings" ) //------------------------------------------------------------------------------ var ( // ErrOutOfBounds indicates an index was out of bounds. ErrOutOfBounds = errors.New("out of bounds") // ErrNotObjOrArray is returned when a target is not an object or array type // but needs to be for the intended operation. ErrNotObjOrArray = errors.New("not an object or array") // ErrNotObj is returned when a target is not an object but needs to be for // the intended operation. ErrNotObj = errors.New("not an object") // ErrInvalidQuery is returned when a seach query was not valid. ErrInvalidQuery = errors.New("invalid search query") // ErrNotArray is returned when a target is not an array but needs to be for // the intended operation. ErrNotArray = errors.New("not an array") // ErrPathCollision is returned when creating a path failed because an // element collided with an existing value. ErrPathCollision = errors.New("encountered value collision whilst building path") // ErrInvalidInputObj is returned when the input value was not a // map[string]interface{}. ErrInvalidInputObj = errors.New("invalid input object") // ErrInvalidInputText is returned when the input data could not be parsed. ErrInvalidInputText = errors.New("input text could not be parsed") // ErrNotFound is returned when a query leaf is not found. ErrNotFound = errors.New("field not found") // ErrInvalidPath is returned when the filepath was not valid. ErrInvalidPath = errors.New("invalid file path") // ErrInvalidBuffer is returned when the input buffer contained an invalid // JSON string. ErrInvalidBuffer = errors.New("input buffer contained invalid JSON") ) //------------------------------------------------------------------------------ // JSONPointerToSlice parses a JSON pointer path // (https://tools.ietf.org/html/rfc6901) and returns the path segments as a // slice. // // Because the characters '~' (%x7E) and '/' (%x2F) have special meanings in // gabs paths, '~' needs to be encoded as '~0' and '/' needs to be encoded as // '~1' when these characters appear in a reference key. func JSONPointerToSlice(path string) ([]string, error) { if len(path) < 1 { return nil, errors.New("failed to resolve JSON pointer: path must not be empty") } if path[0] != '/' { return nil, errors.New("failed to resolve JSON pointer: path must begin with '/'") } hierarchy := strings.Split(path, "/")[1:] for i, v := range hierarchy { v = strings.Replace(v, "~1", "/", -1) v = strings.Replace(v, "~0", "~", -1) hierarchy[i] = v } return hierarchy, nil } // DotPathToSlice returns a slice of path segments parsed out of a dot path. // // Because the characters '~' (%x7E) and '.' (%x2E) have special meanings in // gabs paths, '~' needs to be encoded as '~0' and '.' needs to be encoded as // '~1' when these characters appear in a reference key. func DotPathToSlice(path string) []string { hierarchy := strings.Split(path, ".") for i, v := range hierarchy { v = strings.Replace(v, "~1", ".", -1) v = strings.Replace(v, "~0", "~", -1) hierarchy[i] = v } return hierarchy } //------------------------------------------------------------------------------ // Container references a specific element within a wrapped structure. type Container struct { object interface{} } // Data returns the underlying value of the target element in the wrapped // structure. func (g *Container) Data() interface{} { if g == nil { return nil } return g.object } //------------------------------------------------------------------------------ func (g *Container) searchStrict(allowWildcard bool, hierarchy ...string) (*Container, error) { object := g.Data() for target := 0; target < len(hierarchy); target++ { pathSeg := hierarchy[target] if mmap, ok := object.(map[string]interface{}); ok { object, ok = mmap[pathSeg] if !ok { return nil, fmt.Errorf("failed to resolve path segment '%v': key '%v' was not found", target, pathSeg) } } else if marray, ok := object.([]interface{}); ok { if allowWildcard && pathSeg == "*" { tmpArray := []interface{}{} for _, val := range marray { if (target + 1) >= len(hierarchy) { tmpArray = append(tmpArray, val) } else if res := Wrap(val).Search(hierarchy[target+1:]...); res != nil { tmpArray = append(tmpArray, res.Data()) } } if len(tmpArray) == 0 { return nil, nil } return &Container{tmpArray}, nil } index, err := strconv.Atoi(pathSeg) if err != nil { return nil, fmt.Errorf("failed to resolve path segment '%v': found array but segment value '%v' could not be parsed into array index: %v", target, pathSeg, err) } if len(marray) <= index { return nil, fmt.Errorf("failed to resolve path segment '%v': found array but index '%v' exceeded target array size of '%v'", target, pathSeg, len(marray)) } object = marray[index] } else { return nil, fmt.Errorf("failed to resolve path segment '%v': field '%v' was not found", target, pathSeg) } } return &Container{object}, nil } // Search attempts to find and return an object within the wrapped structure by // following a provided hierarchy of field names to locate the target. // // If the search encounters an array then the next hierarchy field name must be // either a an integer which is interpreted as the index of the target, or the // character '*', in which case all elements are searched with the remaining // search hierarchy and the results returned within an array. func (g *Container) Search(hierarchy ...string) *Container { c, _ := g.searchStrict(true, hierarchy...) return c } // Path searches the wrapped structure following a path in dot notation, // segments of this path are searched according to the same rules as Search. // // Because the characters '~' (%x7E) and '.' (%x2E) have special meanings in // gabs paths, '~' needs to be encoded as '~0' and '.' needs to be encoded as // '~1' when these characters appear in a reference key. func (g *Container) Path(path string) *Container { return g.Search(DotPathToSlice(path)...) } // JSONPointer parses a JSON pointer path (https://tools.ietf.org/html/rfc6901) // and either returns a *gabs.Container containing the result or an error if the // referenced item could not be found. // // Because the characters '~' (%x7E) and '/' (%x2F) have special meanings in // gabs paths, '~' needs to be encoded as '~0' and '/' needs to be encoded as // '~1' when these characters appear in a reference key. func (g *Container) JSONPointer(path string) (*Container, error) { hierarchy, err := JSONPointerToSlice(path) if err != nil { return nil, err } return g.searchStrict(false, hierarchy...) } // S is a shorthand alias for Search. func (g *Container) S(hierarchy ...string) *Container { return g.Search(hierarchy...) } // Exists checks whether a field exists within the hierarchy. func (g *Container) Exists(hierarchy ...string) bool { return g.Search(hierarchy...) != nil } // ExistsP checks whether a dot notation path exists. func (g *Container) ExistsP(path string) bool { return g.Exists(DotPathToSlice(path)...) } // Index attempts to find and return an element within a JSON array by an index. func (g *Container) Index(index int) *Container { if array, ok := g.Data().([]interface{}); ok { if index >= len(array) { return nil } return &Container{array[index]} } return nil } // Children returns a slice of all children of an array element. This also works // for objects, however, the children returned for an object will be in a random // order and you lose the names of the returned objects this way. If the // underlying container value isn't an array or map nil is returned. func (g *Container) Children() []*Container { if array, ok := g.Data().([]interface{}); ok { children := make([]*Container, len(array)) for i := 0; i < len(array); i++ { children[i] = &Container{array[i]} } return children } if mmap, ok := g.Data().(map[string]interface{}); ok { children := []*Container{} for _, obj := range mmap { children = append(children, &Container{obj}) } return children } return nil } // ChildrenMap returns a map of all the children of an object element. IF the // underlying value isn't a object then an empty map is returned. func (g *Container) ChildrenMap() map[string]*Container { if mmap, ok := g.Data().(map[string]interface{}); ok { children := make(map[string]*Container, len(mmap)) for name, obj := range mmap { children[name] = &Container{obj} } return children } return map[string]*Container{} } //------------------------------------------------------------------------------ // Set attempts to set the value of a field located by a hierarchy of field // names. If the search encounters an array then the next hierarchy field name // is interpreted as an integer index of an existing element, or the character // '-', which indicates a new element appended to the end of the array. // // Any parts of the hierarchy that do not exist will be constructed as objects. // This includes parts that could be interpreted as array indexes. // // Returns a container of the new value or an error. func (g *Container) Set(value interface{}, hierarchy ...string) (*Container, error) { if g == nil { return nil, errors.New("failed to resolve path, container is nil") } if len(hierarchy) == 0 { g.object = value return g, nil } if g.object == nil { g.object = map[string]interface{}{} } object := g.object for target := 0; target < len(hierarchy); target++ { pathSeg := hierarchy[target] if mmap, ok := object.(map[string]interface{}); ok { if target == len(hierarchy)-1 { object = value mmap[pathSeg] = object } else if object = mmap[pathSeg]; object == nil { mmap[pathSeg] = map[string]interface{}{} object = mmap[pathSeg] } } else if marray, ok := object.([]interface{}); ok { if pathSeg == "-" { if target < 1 { return nil, errors.New("unable to append new array index at root of path") } if target == len(hierarchy)-1 { object = value } else { object = map[string]interface{}{} } marray = append(marray, object) if _, err := g.Set(marray, hierarchy[:target]...); err != nil { return nil, err } } else { index, err := strconv.Atoi(pathSeg) if err != nil { return nil, fmt.Errorf("failed to resolve path segment '%v': found array but segment value '%v' could not be parsed into array index: %v", target, pathSeg, err) } if len(marray) <= index { return nil, fmt.Errorf("failed to resolve path segment '%v': found array but index '%v' exceeded target array size of '%v'", target, pathSeg, len(marray)) } if target == len(hierarchy)-1 { object = value marray[index] = object } else if object = marray[index]; object == nil { return nil, fmt.Errorf("failed to resolve path segment '%v': field '%v' was not found", target, pathSeg) } } } else { return nil, ErrPathCollision } } return &Container{object}, nil } // SetP sets the value of a field at a path using dot notation, any parts // of the path that do not exist will be constructed, and if a collision occurs // with a non object type whilst iterating the path an error is returned. func (g *Container) SetP(value interface{}, path string) (*Container, error) { return g.Set(value, DotPathToSlice(path)...) } // SetIndex attempts to set a value of an array element based on an index. func (g *Container) SetIndex(value interface{}, index int) (*Container, error) { if array, ok := g.Data().([]interface{}); ok { if index >= len(array) { return nil, ErrOutOfBounds } array[index] = value return &Container{array[index]}, nil } return nil, ErrNotArray } // SetJSONPointer parses a JSON pointer path // (https://tools.ietf.org/html/rfc6901) and sets the leaf to a value. Returns // an error if the pointer could not be resolved due to missing fields. func (g *Container) SetJSONPointer(value interface{}, path string) (*Container, error) { hierarchy, err := JSONPointerToSlice(path) if err != nil { return nil, err } return g.Set(value, hierarchy...) } // Object creates a new JSON object at a target path. Returns an error if the // path contains a collision with a non object type. func (g *Container) Object(hierarchy ...string) (*Container, error) { return g.Set(map[string]interface{}{}, hierarchy...) } // ObjectP creates a new JSON object at a target path using dot notation. // Returns an error if the path contains a collision with a non object type. func (g *Container) ObjectP(path string) (*Container, error) { return g.Object(DotPathToSlice(path)...) } // ObjectI creates a new JSON object at an array index. Returns an error if the // object is not an array or the index is out of bounds. func (g *Container) ObjectI(index int) (*Container, error) { return g.SetIndex(map[string]interface{}{}, index) } // Array creates a new JSON array at a path. Returns an error if the path // contains a collision with a non object type. func (g *Container) Array(hierarchy ...string) (*Container, error) { return g.Set([]interface{}{}, hierarchy...) } // ArrayP creates a new JSON array at a path using dot notation. Returns an // error if the path contains a collision with a non object type. func (g *Container) ArrayP(path string) (*Container, error) { return g.Array(DotPathToSlice(path)...) } // ArrayI creates a new JSON array within an array at an index. Returns an error // if the element is not an array or the index is out of bounds. func (g *Container) ArrayI(index int) (*Container, error) { return g.SetIndex([]interface{}{}, index) } // ArrayOfSize creates a new JSON array of a particular size at a path. Returns // an error if the path contains a collision with a non object type. func (g *Container) ArrayOfSize(size int, hierarchy ...string) (*Container, error) { a := make([]interface{}, size) return g.Set(a, hierarchy...) } // ArrayOfSizeP creates a new JSON array of a particular size at a path using // dot notation. Returns an error if the path contains a collision with a non // object type. func (g *Container) ArrayOfSizeP(size int, path string) (*Container, error) { return g.ArrayOfSize(size, DotPathToSlice(path)...) } // ArrayOfSizeI create a new JSON array of a particular size within an array at // an index. Returns an error if the element is not an array or the index is out // of bounds. func (g *Container) ArrayOfSizeI(size, index int) (*Container, error) { a := make([]interface{}, size) return g.SetIndex(a, index) } // Delete an element at a path, an error is returned if the element does not // exist or is not an object. In order to remove an array element please use // ArrayRemove. func (g *Container) Delete(hierarchy ...string) error { if g == nil || g.object == nil { return ErrNotObj } if len(hierarchy) == 0 { return ErrInvalidQuery } object := g.object target := hierarchy[len(hierarchy)-1] if len(hierarchy) > 1 { object = g.Search(hierarchy[:len(hierarchy)-1]...).Data() } if obj, ok := object.(map[string]interface{}); ok { if _, ok = obj[target]; !ok { return ErrNotFound } delete(obj, target) return nil } if array, ok := object.([]interface{}); ok { if len(hierarchy) < 2 { return errors.New("unable to delete array index at root of path") } index, err := strconv.Atoi(target) if err != nil { return fmt.Errorf("failed to parse array index '%v': %v", target, err) } if index >= len(array) { return ErrOutOfBounds } array = append(array[:index], array[index+1:]...) g.Set(array, hierarchy[:len(hierarchy)-1]...) return nil } return ErrNotObjOrArray } // DeleteP deletes an element at a path using dot notation, an error is returned // if the element does not exist. func (g *Container) DeleteP(path string) error { return g.Delete(DotPathToSlice(path)...) } // MergeFn merges two objects using a provided function to resolve collisions. // // The collision function receives two interface{} arguments, destination (the // original object) and source (the object being merged into the destination). // Which ever value is returned becomes the new value in the destination object // at the location of the collision. func (g *Container) MergeFn(source *Container, collisionFn func(destination, source interface{}) interface{}) error { var recursiveFnc func(map[string]interface{}, []string) error recursiveFnc = func(mmap map[string]interface{}, path []string) error { for key, value := range mmap { newPath := append(path, key) if g.Exists(newPath...) { existingData := g.Search(newPath...).Data() switch t := value.(type) { case map[string]interface{}: switch existingVal := existingData.(type) { case map[string]interface{}: if err := recursiveFnc(t, newPath); err != nil { return err } default: if _, err := g.Set(collisionFn(existingVal, t), newPath...); err != nil { return err } } default: if _, err := g.Set(collisionFn(existingData, t), newPath...); err != nil { return err } } } else { // path doesn't exist. So set the value if _, err := g.Set(value, newPath...); err != nil { return err } } } return nil } if mmap, ok := source.Data().(map[string]interface{}); ok { return recursiveFnc(mmap, []string{}) } return nil } // Merge a source object into an existing destination object. When a collision // is found within the merged structures (both a source and destination object // contain the same non-object keys) the result will be an array containing both // values, where values that are already arrays will be expanded into the // resulting array. // // It is possible to merge structures will different collision behaviours with // MergeFn. func (g *Container) Merge(source *Container) error { return g.MergeFn(source, func(dest, source interface{}) interface{} { destArr, destIsArray := dest.([]interface{}) sourceArr, sourceIsArray := source.([]interface{}) if destIsArray { if sourceIsArray { return append(destArr, sourceArr...) } return append(destArr, source) } if sourceIsArray { return append(append([]interface{}{}, dest), sourceArr...) } return []interface{}{dest, source} }) } //------------------------------------------------------------------------------ /* Array modification/search - Keeping these options simple right now, no need for anything more complicated since you can just cast to []interface{}, modify and then reassign with Set. */ // ArrayAppend attempts to append a value onto a JSON array at a path. If the // target is not a JSON array then it will be converted into one, with its // original contents set to the first element of the array. func (g *Container) ArrayAppend(value interface{}, hierarchy ...string) error { if array, ok := g.Search(hierarchy...).Data().([]interface{}); ok { array = append(array, value) _, err := g.Set(array, hierarchy...) return err } newArray := []interface{}{} if d := g.Search(hierarchy...).Data(); d != nil { newArray = append(newArray, d) } newArray = append(newArray, value) _, err := g.Set(newArray, hierarchy...) return err } // ArrayAppendP attempts to append a value onto a JSON array at a path using dot // notation. If the target is not a JSON array then it will be converted into // one, with its original contents set to the first element of the array. func (g *Container) ArrayAppendP(value interface{}, path string) error { return g.ArrayAppend(value, DotPathToSlice(path)...) } // ArrayRemove attempts to remove an element identified by an index from a JSON // array at a path. func (g *Container) ArrayRemove(index int, hierarchy ...string) error { if index < 0 { return ErrOutOfBounds } array, ok := g.Search(hierarchy...).Data().([]interface{}) if !ok { return ErrNotArray } if index < len(array) { array = append(array[:index], array[index+1:]...) } else { return ErrOutOfBounds } _, err := g.Set(array, hierarchy...) return err } // ArrayRemoveP attempts to remove an element identified by an index from a JSON // array at a path using dot notation. func (g *Container) ArrayRemoveP(index int, path string) error { return g.ArrayRemove(index, DotPathToSlice(path)...) } // ArrayElement attempts to access an element by an index from a JSON array at a // path. func (g *Container) ArrayElement(index int, hierarchy ...string) (*Container, error) { if index < 0 { return nil, ErrOutOfBounds } array, ok := g.Search(hierarchy...).Data().([]interface{}) if !ok { return nil, ErrNotArray } if index < len(array) { return &Container{array[index]}, nil } return nil, ErrOutOfBounds } // ArrayElementP attempts to access an element by an index from a JSON array at // a path using dot notation. func (g *Container) ArrayElementP(index int, path string) (*Container, error) { return g.ArrayElement(index, DotPathToSlice(path)...) } // ArrayCount counts the number of elements in a JSON array at a path. func (g *Container) ArrayCount(hierarchy ...string) (int, error) { if array, ok := g.Search(hierarchy...).Data().([]interface{}); ok { return len(array), nil } return 0, ErrNotArray } // ArrayCountP counts the number of elements in a JSON array at a path using dot // notation. func (g *Container) ArrayCountP(path string) (int, error) { return g.ArrayCount(DotPathToSlice(path)...) } //------------------------------------------------------------------------------ // Bytes marshals an element to a JSON []byte blob. func (g *Container) Bytes() []byte { if bytes, err := json.Marshal(g.Data()); err == nil { return bytes } return []byte("null") } // BytesIndent marshals an element to a JSON []byte blob formatted with a prefix // and indent string. func (g *Container) BytesIndent(prefix string, indent string) []byte { if g.object != nil { if bytes, err := json.MarshalIndent(g.Data(), prefix, indent); err == nil { return bytes } } return []byte("null") } // String marshals an element to a JSON formatted string. func (g *Container) String() string { return string(g.Bytes()) } // StringIndent marshals an element to a JSON string formatted with a prefix and // indent string. func (g *Container) StringIndent(prefix string, indent string) string { return string(g.BytesIndent(prefix, indent)) } // EncodeOpt is a functional option for the EncodeJSON method. type EncodeOpt func(e *json.Encoder) // EncodeOptHTMLEscape sets the encoder to escape the JSON for html. func EncodeOptHTMLEscape(doEscape bool) EncodeOpt { return func(e *json.Encoder) { e.SetEscapeHTML(doEscape) } } // EncodeOptIndent sets the encoder to indent the JSON output. func EncodeOptIndent(prefix string, indent string) EncodeOpt { return func(e *json.Encoder) { e.SetIndent(prefix, indent) } } // EncodeJSON marshals an element to a JSON formatted []byte using a variant // list of modifier functions for the encoder being used. Functions for // modifying the output are prefixed with EncodeOpt, e.g. EncodeOptHTMLEscape. func (g *Container) EncodeJSON(encodeOpts ...EncodeOpt) []byte { var b bytes.Buffer encoder := json.NewEncoder(&b) encoder.SetEscapeHTML(false) // Do not escape by default. for _, opt := range encodeOpts { opt(encoder) } if err := encoder.Encode(g.object); err != nil { return []byte("null") } result := b.Bytes() if len(result) > 0 { result = result[:len(result)-1] } return result } // New creates a new gabs JSON object. func New() *Container { return &Container{map[string]interface{}{}} } // Wrap an already unmarshalled JSON object (or a new map[string]interface{}) // into a *Container. func Wrap(root interface{}) *Container { return &Container{root} } // ParseJSON unmarshals a JSON byte slice into a *Container. func ParseJSON(sample []byte) (*Container, error) { var gabs Container if err := json.Unmarshal(sample, &gabs.object); err != nil { return nil, err } return &gabs, nil } // ParseJSONDecoder applies a json.Decoder to a *Container. func ParseJSONDecoder(decoder *json.Decoder) (*Container, error) { var gabs Container if err := decoder.Decode(&gabs.object); err != nil { return nil, err } return &gabs, nil } // ParseJSONFile reads a file and unmarshals the contents into a *Container. func ParseJSONFile(path string) (*Container, error) { if len(path) > 0 { cBytes, err := ioutil.ReadFile(path) if err != nil { return nil, err } container, err := ParseJSON(cBytes) if err != nil { return nil, err } return container, nil } return nil, ErrInvalidPath } // ParseJSONBuffer reads a buffer and unmarshals the contents into a *Container. func ParseJSONBuffer(buffer io.Reader) (*Container, error) { var gabs Container jsonDecoder := json.NewDecoder(buffer) if err := jsonDecoder.Decode(&gabs.object); err != nil { return nil, err } return &gabs, nil } // MarshalJSON returns the JSON encoding of this container. 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ok { if result != 10 { t.Errorf("Wrong value of result: %v", result) } } else { t.Errorf("Didn't find test.value") } if _, ok := val.Search("test2", "value").Data().(string); ok { t.Errorf("Somehow found a field that shouldn't exist") } if result, ok := val.Search("test2").Data().(float64); ok { if result != 20 { t.Errorf("Wrong value of result: %v", result) } } else { t.Errorf("Didn't find test2") } if result := val.Bytes(); string(result) != string(sample) { t.Errorf("Wrong []byte conversion: %s != %s", result, sample) } } func TestNilMethods(t *testing.T) { var n *Container if exp, act := "null", n.String(); exp != act { t.Errorf("Unexpected value: %v != %v", act, exp) } if exp, act := "null", string(n.Bytes()); exp != act { t.Errorf("Unexpected value: %v != %v", act, exp) } if n.Search("foo", "bar") != nil { t.Error("non nil result") } if n.Path("foo.bar") != nil { t.Error("non nil result") } if _, err := n.Array("foo"); err == nil { t.Error("expected error") } if err := n.ArrayAppend("foo", "bar"); err == nil { t.Error("expected error") } if err := n.ArrayRemove(1, "foo", "bar"); err == nil { t.Error("expected error") } if n.Exists("foo", "bar") { t.Error("expected false") } if n.Index(1) != nil { t.Error("non nil result") } if n.Children() != nil { t.Error("non nil result") } if len(n.ChildrenMap()) > 0 { t.Error("non nil result") } if err := n.Delete("foo"); err == nil { t.Error("expected error") } } var bigSample = []byte(`{ "a": { "nested1": { "value1": 5 } }, "": { "can we access": "this?" }, "what/a/pain": "ouch1", "what~a~pain": "ouch2", "what~/a/~pain": "ouch3", "what.a.pain": "ouch4", "what~.a.~pain": "ouch5", "b": 10, "c": [ "first", "second", { "nested2": { "value2": 15 } }, [ "fifth", "sixth" ], "fourth" ], "d": { "": { "what about": "this?" } } }`) func TestJSONPointer(t *testing.T) { type testCase struct { path string value string err string } tests := []testCase{ { path: "foo", err: "failed to resolve JSON pointer: path must begin with '/'", }, { path: "/a/doesnotexist", err: "failed to resolve path segment '1': key 'doesnotexist' was not found", }, { path: "/a", value: `{"nested1":{"value1":5}}`, }, { path: "/what~1a~1pain", value: `"ouch1"`, }, { path: "/what~0a~0pain", value: `"ouch2"`, }, { path: "/what~0~1a~1~0pain", value: `"ouch3"`, }, { path: "/what.a.pain", value: `"ouch4"`, }, { path: "/what~0.a.~0pain", value: `"ouch5"`, }, { path: "/", value: `{"can we access":"this?"}`, }, { path: "//can we access", value: `"this?"`, }, { path: "/d/", value: `{"what about":"this?"}`, }, { path: "/d//what about", value: `"this?"`, }, { path: "/c/1", value: `"second"`, }, { path: "/c/2/nested2/value2", value: `15`, }, { path: "/c/notindex/value2", err: `failed to resolve path segment '1': found array but segment value 'notindex' could not be parsed into array index: strconv.Atoi: parsing "notindex": invalid syntax`, }, { path: "/c/10/value2", err: `failed to resolve path segment '1': found array but index '10' exceeded target array size of '5'`, }, } root, err := ParseJSON(bigSample) if err != nil { t.Fatalf("Failed to parse: %v", err) } for _, test := range tests { t.Run(test.path, func(tt *testing.T) { var result *Container result, err = root.JSONPointer(test.path) if len(test.err) > 0 { if err == nil { tt.Errorf("Expected error: %v", test.err) } else if exp, act := test.err, err.Error(); exp != act { tt.Errorf("Wrong error returned: %v != %v", act, exp) } return } else if err != nil { tt.Error(err) return } if exp, act := test.value, result.String(); exp != act { tt.Errorf("Wrong result: %v != %v", act, exp) } }) } } func TestDotPath(t *testing.T) { type testCase struct { path string value string } tests := []testCase{ { path: "foo", value: "null", }, { path: "a.doesnotexist", value: "null", }, { path: "a", value: `{"nested1":{"value1":5}}`, }, { path: "what/a/pain", value: `"ouch1"`, }, { path: "what~0a~0pain", value: `"ouch2"`, }, { path: "what~0/a/~0pain", value: `"ouch3"`, }, { path: "what~1a~1pain", value: `"ouch4"`, }, { path: "what~0~1a~1~0pain", value: `"ouch5"`, }, { path: "", value: `{"can we access":"this?"}`, }, { path: ".can we access", value: `"this?"`, }, { path: "d.", value: `{"what about":"this?"}`, }, { path: "d..what about", value: `"this?"`, }, { path: "c.1", value: `"second"`, }, { path: "c.2.nested2.value2", value: `15`, }, { path: "c.notindex.value2", value: "null", }, { path: "c.10.value2", value: "null", }, } root, err := ParseJSON(bigSample) if err != nil { t.Fatalf("Failed to parse: %v", err) } for _, test := range tests { t.Run(test.path, func(tt *testing.T) { result := root.Path(test.path) if exp, act := test.value, result.String(); exp != act { tt.Errorf("Wrong result: %v != %v", act, exp) } }) } } func TestArrayWildcard(t *testing.T) { sample := []byte(`{"test":[{"value":10},{"value":20}]}`) val, err := ParseJSON(sample) if err != nil { t.Fatalf("Failed to parse: %v", err) } if act, ok := val.Search([]string{"test", "0", "value"}...).Data().(float64); ok { if exp := float64(10); !reflect.DeepEqual(act, exp) { t.Errorf("Wrong result: %v != %v", act, exp) } } else { t.Errorf("Didn't find test.0.value") } if act, ok := val.Search([]string{"test", "1", "value"}...).Data().(float64); ok { if exp := float64(20); !reflect.DeepEqual(act, exp) { t.Errorf("Wrong result: %v != %v", act, exp) } } else { t.Errorf("Didn't find test.1.value") } if act, ok := val.Search([]string{"test", "*", "value"}...).Data().([]interface{}); ok { if exp := []interface{}{float64(10), float64(20)}; !reflect.DeepEqual(act, exp) { t.Errorf("Wrong result: %v != %v", act, exp) } } else { t.Errorf("Didn't find test.*.value") } if act := val.Search([]string{"test", "*", "notmatched"}...); act != nil { t.Errorf("Expected nil result, received: %v", act) } if act, ok := val.Search([]string{"test", "*"}...).Data().([]interface{}); ok { if exp := []interface{}{map[string]interface{}{"value": float64(10)}, map[string]interface{}{"value": float64(20)}}; !reflect.DeepEqual(act, exp) { t.Errorf("Wrong result: %v != %v", act, exp) } } else { t.Errorf("Didn't find test.*.value") } } func TestArrayAppendWithSet(t *testing.T) { gObj := New() if _, err := gObj.Set([]interface{}{}, "foo"); err != nil { t.Fatal(err) } if _, err := gObj.Set(1, "foo", "-"); err != nil { t.Fatal(err) } if _, err := gObj.Set([]interface{}{}, "foo", "-", "baz"); err != nil { t.Fatal(err) } if _, err := gObj.Set(2, "foo", "1", "baz", "-"); err != nil { t.Fatal(err) } if _, err := gObj.Set(3, "foo", "1", "baz", "-"); err != nil { t.Fatal(err) } if _, err := gObj.Set(4, "foo", "-"); err != nil { t.Fatal(err) } exp := `{"foo":[1,{"baz":[2,3]},4]}` if act := gObj.String(); act != exp { t.Errorf("Unexpected value: %v != %v", act, exp) } } func TestExists(t *testing.T) { sample := []byte(`{"test":{"value":10,"nullvalue":null},"test2":20,"testnull":null}`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } paths := []struct { Path []string Exists bool }{ {[]string{"one", "two", "three"}, false}, {[]string{"test"}, true}, {[]string{"test", "value"}, true}, {[]string{"test", "nullvalue"}, true}, {[]string{"test2"}, true}, {[]string{"testnull"}, true}, {[]string{"test2", "value"}, false}, {[]string{"test", "value2"}, false}, {[]string{"test", "VALUE"}, false}, } for _, p := range paths { if exp, actual := p.Exists, val.Exists(p.Path...); exp != actual { t.Errorf("Wrong result from Exists: %v != %v, for path: %v", exp, actual, p.Path) } if exp, actual := p.Exists, val.ExistsP(strings.Join(p.Path, ".")); exp != actual { t.Errorf("Wrong result from ExistsP: %v != %v, for path: %v", exp, actual, p.Path) } } } func TestExistsWithArrays(t *testing.T) { sample := []byte(`{"foo":{"bar":{"baz":[10, 2, 3]}}}`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } if exp, actual := true, val.Exists("foo", "bar", "baz"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } sample = []byte(`{"foo":{"bar":[{"baz":10},{"baz":2},{"baz":3}]}}`) if val, err = ParseJSON(sample); err != nil { t.Errorf("Failed to parse: %v", err) return } if exp, actual := true, val.Exists("foo", "bar", "0", "baz"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } if exp, actual := false, val.Exists("foo", "bar", "1", "baz_NOPE"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } sample = []byte(`{"foo":[{"bar":{"baz":10}},{"bar":{"baz":2}},{"bar":{"baz":3}}]}`) if val, err = ParseJSON(sample); err != nil { t.Errorf("Failed to parse: %v", err) return } if exp, actual := true, val.Exists("foo", "0", "bar", "baz"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } if exp, actual := false, val.Exists("foo", "0", "bar", "baz_NOPE"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } sample = []byte(`[{"foo":{"bar":{"baz":10}}},{"foo":{"bar":{"baz":2}}},{"foo":{"bar":{"baz":3}}}]`) if val, err = ParseJSON(sample); err != nil { t.Errorf("Failed to parse: %v", err) return } if exp, actual := true, val.Exists("0", "foo", "bar", "baz"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } if exp, actual := false, val.Exists("0", "foo", "bar", "baz_NOPE"); exp != actual { t.Errorf("Wrong result from array based Exists: %v != %v", exp, actual) } } func TestBasicWithBuffer(t *testing.T) { sample := bytes.NewReader([]byte(`{"test":{"value":10},"test2":20}`)) _, err := ParseJSONBuffer(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } } func TestBasicWithDecoder(t *testing.T) { sample := []byte(`{"test":{"int":10, "float":6.66}}`) dec := json.NewDecoder(bytes.NewReader(sample)) dec.UseNumber() val, err := ParseJSONDecoder(dec) if err != nil { t.Errorf("Failed to parse: %v", err) return } checkNumber := func(path string, expectedVal json.Number) { data := val.Path(path).Data() asNumber, isNumber := data.(json.Number) if !isNumber { t.Error("Failed to parse using decoder UseNumber policy") } if expectedVal != asNumber { t.Errorf("Expected[%s] but got [%s]", expectedVal, asNumber) } } checkNumber("test.int", "10") checkNumber("test.float", "6.66") } func TestFailureWithDecoder(t *testing.T) { sample := []byte(`{"test":{" "invalidCrap":.66}}`) dec := json.NewDecoder(bytes.NewReader(sample)) _, err := ParseJSONDecoder(dec) if err == nil { t.Fatal("Expected parsing error") } } func TestDeletes(t *testing.T) { jsonParsed, _ := ParseJSON([]byte(`{ "outter":{ "inner":{ "value1":10, "value2":22, "value3":32 }, "alsoInner":{ "value1":20, "value2":42, "value3":92 }, "another":{ "value1":null, "value2":null, "value3":null } } }`)) if err := jsonParsed.Delete("outter", "inner", "value2"); err != nil { t.Error(err) } if err := jsonParsed.Delete("outter", "inner", "value4"); err == nil { t.Error("value4 should not have been found in outter.inner") } if err := jsonParsed.Delete("outter", "another", "value1"); err != nil { t.Error(err) } if err := jsonParsed.Delete("outter", "another", "value4"); err == nil { t.Error("value4 should not have been found in outter.another") } if err := jsonParsed.DeleteP("outter.alsoInner.value1"); err != nil { t.Error(err) } if err := jsonParsed.DeleteP("outter.alsoInner.value4"); err == nil { t.Error("value4 should not have been found in outter.alsoInner") } if err := jsonParsed.DeleteP("outter.another.value2"); err != nil { t.Error(err) } if err := jsonParsed.Delete("outter.another.value4"); err == nil { t.Error("value4 should not have been found in outter.another") } expected := `{"outter":{"alsoInner":{"value2":42,"value3":92},"another":{"value3":null},"inner":{"value1":10,"value3":32}}}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from deletes: %v != %v", actual, expected) } } func TestDeletesWithArrays(t *testing.T) { rawJSON := `{ "outter":[ { "foo":{ "value1":10, "value2":22, "value3":32 }, "bar": [ 20, 42, 92 ] }, { "baz":{ "value1":null, "value2":null, "value3":null } } ] }` jsonParsed, err := ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "1", "baz", "value1"); err != nil { t.Error(err) } expected := `{"outter":[{"bar":[20,42,92],"foo":{"value1":10,"value2":22,"value3":32}},{"baz":{"value2":null,"value3":null}}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } jsonParsed, err = ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "1", "baz"); err != nil { t.Error(err) } expected = `{"outter":[{"bar":[20,42,92],"foo":{"value1":10,"value2":22,"value3":32}},{}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } jsonParsed, err = ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "1"); err != nil { t.Error(err) } expected = `{"outter":[{"bar":[20,42,92],"foo":{"value1":10,"value2":22,"value3":32}}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } jsonParsed, err = ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "0", "bar", "0"); err != nil { t.Error(err) } expected = `{"outter":[{"bar":[42,92],"foo":{"value1":10,"value2":22,"value3":32}},{"baz":{"value1":null,"value2":null,"value3":null}}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } jsonParsed, err = ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "0", "bar", "1"); err != nil { t.Error(err) } expected = `{"outter":[{"bar":[20,92],"foo":{"value1":10,"value2":22,"value3":32}},{"baz":{"value1":null,"value2":null,"value3":null}}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } jsonParsed, err = ParseJSON([]byte(rawJSON)) if err != nil { t.Fatal(err) } if err = jsonParsed.Delete("outter", "0", "bar", "2"); err != nil { t.Error(err) } expected = `{"outter":[{"bar":[20,42],"foo":{"value1":10,"value2":22,"value3":32}},{"baz":{"value1":null,"value2":null,"value3":null}}]}` if actual := jsonParsed.String(); actual != expected { t.Errorf("Unexpected result from array deletes: %v != %v", actual, expected) } } func TestExamples(t *testing.T) { jsonParsed, err := ParseJSON([]byte(`{ "outter":{ "inner":{ "value1":10, "value2":22 }, "contains.dots.in.key":{ "value1":11 }, "contains~tildes~in~key":{ "value1":12 }, "alsoInner":{ "value1":20, "array1":[ 30, 40 ] } } }`)) var value float64 var ok bool value, ok = jsonParsed.Path("outter.inner.value1").Data().(float64) if value != 10.0 || !ok { t.Errorf("wrong value: %v, %v", value, ok) } value, ok = jsonParsed.Path("outter.contains~1dots~1in~1key.value1").Data().(float64) if value != 11.0 || !ok { t.Errorf("wrong value: %v, %v", value, ok) } value, ok = jsonParsed.Path("outter.contains~0tildes~0in~0key.value1").Data().(float64) if value != 12.0 || !ok { t.Errorf("wrong value: %v, %v", value, ok) } value, ok = jsonParsed.Search("outter", "inner", "value1").Data().(float64) if value != 10.0 || !ok { t.Errorf("wrong value: %v, %v", value, ok) } gObj, err := jsonParsed.JSONPointer("/outter/alsoInner/array1/1") if err != nil { t.Fatal(err) } value, ok = gObj.Data().(float64) if value != 40.0 || !ok { t.Errorf("wrong value: %v, %v", value, ok) } value, ok = jsonParsed.Path("does.not.exist").Data().(float64) if value != 0.0 || ok { t.Errorf("wrong value: %v, %v", value, ok) } jsonParsed, _ = ParseJSON([]byte(`{"array":[ "first", "second", "third" ]}`)) expected := []string{"first", "second", "third"} children := jsonParsed.S("array").Children() for i, child := range children { if expected[i] != child.Data().(string) { t.Errorf("Child unexpected: %v != %v", expected[i], child.Data().(string)) } } } func TestSetAppendArray(t *testing.T) { content := []byte(`{ "nested": { "source": [ "foo", "bar" ] } }`) gObj, err := ParseJSON(content) if err != nil { t.Fatal(err) } if _, err = gObj.Set("baz", "nested", "source", "-"); err != nil { t.Fatal(err) } exp := `{"nested":{"source":["foo","bar","baz"]}}` if act := gObj.String(); act != exp { t.Errorf("Wrong result: %v != %v", act, exp) } } func TestExamples2(t *testing.T) { var err error jsonObj := New() _, err = jsonObj.Set(10, "outter", "inner", "value") if err != nil { t.Errorf("Error: %v", err) return } _, err = jsonObj.SetP(20, "outter.inner.value2") if err != nil { t.Errorf("Error: %v", err) return } _, err = jsonObj.Set(30, "outter", "inner2", "value3") if err != nil { t.Errorf("Error: %v", err) return } expected := `{"outter":{"inner":{"value":10,"value2":20},"inner2":{"value3":30}}}` if jsonObj.String() != expected { t.Errorf("Non matched output: %v != %v", expected, jsonObj.String()) } jsonObj = Wrap(map[string]interface{}{}) jsonObj.Array("array") jsonObj.ArrayAppend(10, "array") jsonObj.ArrayAppend(20, "array") jsonObj.ArrayAppend(30, "array") expected = `{ "array": [ 10, 20, 30 ] }` result := jsonObj.StringIndent(" ", " ") if result != expected { t.Errorf("Non matched output: %v != %v", expected, result) } } func TestExamples3(t *testing.T) { jsonObj := New() jsonObj.ArrayP("foo.array") jsonObj.ArrayAppend(10, "foo", "array") jsonObj.ArrayAppend(20, "foo", "array") jsonObj.ArrayAppend(30, "foo", "array") result := jsonObj.String() expected := `{"foo":{"array":[10,20,30]}}` if result != expected { t.Errorf("Non matched output: %v != %v", result, expected) } } func TestDotNotation(t *testing.T) { sample := []byte(`{"test":{"inner":{"value":10}},"test2":20}`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } if result, _ := val.Path("test.inner.value").Data().(float64); result != 10 { t.Errorf("Expected 10, received: %v", result) } } func TestModify(t *testing.T) { sample := []byte(`{"test":{"value":10},"test2":20}`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } if _, err := val.S("test").Set(45.0, "value"); err != nil { t.Errorf("Failed to set field") } if result, ok := val.Search([]string{"test", "value"}...).Data().(float64); ok { if result != 45 { t.Errorf("Wrong value of result: %v", result) } } else { t.Errorf("Didn't find test.value") } if out := val.String(); `{"test":{"value":45},"test2":20}` != out { t.Errorf("Incorrectly serialized: %v", out) } if out := val.Search("test").String(); `{"value":45}` != out { t.Errorf("Incorrectly serialized: %v", out) } } func TestChildren(t *testing.T) { json1, _ := ParseJSON([]byte(`{ "objectOne":{ }, "objectTwo":{ }, "objectThree":{ } }`)) objects := json1.Children() for _, object := range objects { object.Set("hello world", "child") } expected := `{"objectOne":{"child":"hello world"},"objectThree":{"child":"hello world"}` + `,"objectTwo":{"child":"hello world"}}` received := json1.String() if expected != received { t.Errorf("json1: expected %v, received %v", expected, received) } json2, _ := ParseJSON([]byte(`{ "values":[ { "objectOne":{ } }, { "objectTwo":{ } }, { "objectThree":{ } } ] }`)) json3, _ := ParseJSON([]byte(`{ "values":[ ] }`)) numChildren1, _ := json2.ArrayCount("values") numChildren2, _ := json3.ArrayCount("values") if _, err := json3.ArrayCount("valuesNOTREAL"); err == nil { t.Errorf("expected numChildren3 to fail") } if numChildren1 != 3 || numChildren2 != 0 { t.Errorf("CountElements, expected 3 and 0, received %v and %v", numChildren1, numChildren2) } objects = json2.S("values").Children() for _, object := range objects { object.Set("hello world", "child") json3.ArrayAppend(object.Data(), "values") } expected = `{"values":[{"child":"hello world","objectOne":{}},{"child":"hello world",` + `"objectTwo":{}},{"child":"hello world","objectThree":{}}]}` received = json2.String() if expected != received { t.Errorf("json2: expected %v, received %v", expected, received) } received = json3.String() if expected != received { t.Errorf("json3: expected %v, received %v", expected, received) } } func TestChildrenMap(t *testing.T) { json1, _ := ParseJSON([]byte(`{ "objectOne":{"num":1}, "objectTwo":{"num":2}, "objectThree":{"num":3} }`)) objectMap := json1.ChildrenMap() if len(objectMap) != 3 { t.Errorf("Wrong num of elements in objectMap: %v != %v", len(objectMap), 3) return } for key, val := range objectMap { if "objectOne" == key { if val := val.S("num").Data().(float64); val != 1 { t.Errorf("%v != %v", val, 1) } } else if "objectTwo" == key { if val := val.S("num").Data().(float64); val != 2 { t.Errorf("%v != %v", val, 2) } } else if "objectThree" == key { if val := val.S("num").Data().(float64); val != 3 { t.Errorf("%v != %v", val, 3) } } else { t.Errorf("Unexpected key: %v", key) } } objectMap["objectOne"].Set(500, "num") if val := json1.Path("objectOne.num").Data().(int); val != 500 { t.Errorf("set objectOne failed: %v != %v", val, 500) } } func TestNestedAnonymousArrays(t *testing.T) { json1, _ := ParseJSON([]byte(`{ "array":[ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ], [{ "test" : 50 }] ] }`)) childTest := json1.S("array").Index(0).Children() if val := childTest[0].Data().(float64); val != 1 { t.Errorf("child test: %v != %v", val, 1) } if val := childTest[1].Data().(float64); val != 2 { t.Errorf("child test: %v != %v", val, 2) } if val := childTest[2].Data().(float64); val != 3 { t.Errorf("child test: %v != %v", val, 3) } if val := json1.Path("array").Index(1).Index(1).Data().(float64); val != 5 { t.Errorf("nested child test: %v != %v", val, 5) } if val := json1.Path("array").Index(3).Index(0).S("test").Data().(float64); val != 50 { t.Errorf("nested child object test: %v != %v", val, 50) } json1.Path("array").Index(3).Index(0).Set(200, "test") if val := json1.Path("array").Index(3).Index(0).S("test").Data().(int); val != 200 { t.Errorf("set nested child object: %v != %v", val, 200) } } func TestArrays(t *testing.T) { json1, _ := ParseJSON([]byte(`{ "languages":{ "english":{ "places":0 }, "french": { "places": [ "france", "belgium" ] } } }`)) json2, _ := ParseJSON([]byte(`{ "places":[ "great_britain", "united_states_of_america", "the_world" ] }`)) if englishPlaces := json2.Search("places").Data(); englishPlaces != nil { json1.Path("languages.english").Set(englishPlaces, "places") } else { t.Errorf("Didn't find places in json2") } if englishPlaces := json1.Search("languages", "english", "places").Data(); englishPlaces != nil { englishArray, ok := englishPlaces.([]interface{}) if !ok { t.Errorf("places in json1 (%v) was not an array", englishPlaces) } if len(englishArray) != 3 { t.Errorf("wrong length of array: %v", len(englishArray)) } } else { t.Errorf("Didn't find places in json1") } for i := 0; i < 3; i++ { if err := json2.ArrayRemove(0, "places"); err != nil { t.Errorf("Error removing element: %v", err) } } json2.ArrayAppend(map[string]interface{}{}, "places") json2.ArrayAppend(map[string]interface{}{}, "places") json2.ArrayAppend(map[string]interface{}{}, "places") // Using float64 for this test even though it's completely inappropriate because // later on the API might do something clever with types, in which case all numbers // will become float64. for i := 0; i < 3; i++ { obj, _ := json2.ArrayElement(i, "places") obj2, _ := obj.Object(fmt.Sprintf("object%v", i)) obj2.Set(float64(i), "index") } children := json2.S("places").Children() for i, obj := range children { if id, ok := obj.S(fmt.Sprintf("object%v", i)).S("index").Data().(float64); ok { if id != float64(i) { t.Errorf("Wrong index somehow, expected %v, received %v", i, id) } } else { t.Errorf("Failed to find element %v from %v", i, obj) } } if err := json2.ArrayRemove(1, "places"); err != nil { t.Errorf("Error removing element: %v", err) } expected := `{"places":[{"object0":{"index":0}},{"object2":{"index":2}}]}` received := json2.String() if expected != received { t.Errorf("Wrong output, expected: %v, received: %v", expected, received) } } func TestArraysTwo(t *testing.T) { json1 := New() test1, err := json1.ArrayOfSize(4, "test1") if err != nil { t.Error(err) } if _, err = test1.ArrayOfSizeI(2, 0); err != nil { t.Error(err) } if _, err = test1.ArrayOfSizeI(2, 1); err != nil { t.Error(err) } if _, err = test1.ArrayOfSizeI(2, 2); err != nil { t.Error(err) } if _, err = test1.ArrayOfSizeI(2, 3); err != nil { t.Error(err) } if _, err = test1.ArrayOfSizeI(2, 4); err != ErrOutOfBounds { t.Errorf("Index should have been out of bounds") } if _, err = json1.S("test1").Index(0).SetIndex(10, 0); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(0).SetIndex(11, 1); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(1).SetIndex(12, 0); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(1).SetIndex(13, 1); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(2).SetIndex(14, 0); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(2).SetIndex(15, 1); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(3).SetIndex(16, 0); err != nil { t.Error(err) } if _, err = json1.S("test1").Index(3).SetIndex(17, 1); err != nil { t.Error(err) } if val := json1.S("test1").Index(0).Index(0).Data().(int); val != 10 { t.Errorf("create array: %v != %v", val, 10) } if val := json1.S("test1").Index(0).Index(1).Data().(int); val != 11 { t.Errorf("create array: %v != %v", val, 11) } if val := json1.S("test1").Index(1).Index(0).Data().(int); val != 12 { t.Errorf("create array: %v != %v", val, 12) } if val := json1.S("test1").Index(1).Index(1).Data().(int); val != 13 { t.Errorf("create array: %v != %v", val, 13) } if val := json1.S("test1").Index(2).Index(0).Data().(int); val != 14 { t.Errorf("create array: %v != %v", val, 14) } if val := json1.S("test1").Index(2).Index(1).Data().(int); val != 15 { t.Errorf("create array: %v != %v", val, 15) } if val := json1.S("test1").Index(3).Index(0).Data().(int); val != 16 { t.Errorf("create array: %v != %v", val, 16) } if val := json1.S("test1").Index(3).Index(1).Data().(int); val != 17 { t.Errorf("create array: %v != %v", val, 17) } } func TestArraysThree(t *testing.T) { json1 := New() test, err := json1.ArrayOfSizeP(1, "test1.test2") if err != nil { t.Fatal(err) } test.SetIndex(10, 0) if val := json1.S("test1", "test2").Index(0).Data().(int); val != 10 { t.Error(err) } } func TestSetJSONPointer(t *testing.T) { type testCase struct { input string pointer string value interface{} output string } tests := []testCase{ { input: `{"foo":{"bar":"baz"}}`, pointer: "/foo/bar", value: "qux", output: `{"foo":{"bar":"qux"}}`, }, { input: `{"foo":["bar","ignored","baz"]}`, pointer: "/foo/2", value: "qux", output: `{"foo":["bar","ignored","qux"]}`, }, { input: `{"foo":["bar","ignored",{"bar":"baz"}]}`, pointer: "/foo/2/bar", value: "qux", output: `{"foo":["bar","ignored",{"bar":"qux"}]}`, }, } for _, test := range tests { gObj, err := ParseJSON([]byte(test.input)) if err != nil { t.Errorf("Failed to parse '%v': %v", test.input, err) continue } if _, err = gObj.SetJSONPointer(test.value, test.pointer); err != nil { t.Error(err) continue } if exp, act := test.output, gObj.String(); exp != act { t.Errorf("Wrong result: %v != %v", act, exp) } } } func TestArrayReplace(t *testing.T) { json1 := New() json1.Set(1, "first") json1.ArrayAppend(2, "first") json1.ArrayAppend(3, "second") expected := `{"first":[1,2],"second":[3]}` received := json1.String() if expected != received { t.Errorf("Wrong output, expected: %v, received: %v", expected, received) } } func TestArraysRoot(t *testing.T) { sample := []byte(`["test1"]`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } val.ArrayAppend("test2") val.ArrayAppend("test3") if obj, err := val.ObjectI(2); err != nil { t.Error(err) } else { obj.Set("bar", "foo") } if expected, actual := `["test1","test2",{"foo":"bar"}]`, val.String(); expected != actual { t.Errorf("expected %v, received: %v", expected, actual) } } func TestLargeSample(t *testing.T) { sample := []byte(`{ "test":{ "innerTest":{ "value":10, "value2":22, "value3":{ "moreValue":45 } } }, "test2":20 }`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } if result, ok := val.Search("test", "innerTest", "value3", "moreValue").Data().(float64); ok { if result != 45 { t.Errorf("Wrong value of result: %v", result) } } else { t.Errorf("Didn't find value") } } func TestShorthand(t *testing.T) { json, _ := ParseJSON([]byte(`{ "outter":{ "inner":{ "value":5, "value2":10, "value3":11 }, "inner2":{ } }, "outter2":{ "inner":0 } }`)) missingValue := json.S("outter").S("doesntexist").S("alsodoesntexist").S("inner").S("value").Data() if missingValue != nil { t.Errorf("missing value was actually found: %v\n", missingValue) } realValue := json.S("outter").S("inner").S("value2").Data().(float64) if realValue != 10 { t.Errorf("real value was incorrect: %v\n", realValue) } _, err := json.S("outter2").Set(json.S("outter").S("inner").Data(), "inner") if err != nil { t.Errorf("error setting outter2: %v\n", err) } compare := `{"outter":{"inner":{"value":5,"value2":10,"value3":11},"inner2":{}}` + `,"outter2":{"inner":{"value":5,"value2":10,"value3":11}}}` out := json.String() if out != compare { t.Errorf("wrong serialized structure: %v\n", out) } compare2 := `{"outter":{"inner":{"value":6,"value2":10,"value3":11},"inner2":{}}` + `,"outter2":{"inner":{"value":6,"value2":10,"value3":11}}}` json.S("outter").S("inner").Set(6, "value") out = json.String() if out != compare2 { t.Errorf("wrong serialized structure: %v\n", out) } } func TestInvalid(t *testing.T) { invalidJSONSamples := []string{ `{dfads"`, ``, // `""`, // `"hello"`, "{}\n{}", } for _, sample := range invalidJSONSamples { if _, err := ParseJSON([]byte(sample)); err == nil { t.Errorf("parsing invalid JSON '%v' did not return error", sample) } } if _, err := ParseJSON(nil); err == nil { t.Errorf("parsing nil did not return error") } validObj, err := ParseJSON([]byte(`{}`)) if err != nil { t.Errorf("failed to parse '{}'") } invalidStr := validObj.S("Doesn't exist").String() if "null" != invalidStr { t.Errorf("expected 'null', received: %v", invalidStr) } } func TestCreation(t *testing.T) { json, _ := ParseJSON([]byte(`{}`)) inner, err := json.ObjectP("test.inner") if err != nil { t.Errorf("Error: %v", err) return } inner.Set(10, "first") inner.Set(20, "second") inner.Array("array") inner.ArrayAppend("first element of the array", "array") inner.ArrayAppend(2, "array") inner.ArrayAppend("three", "array") expected := `{"test":{"inner":{"array":["first element of the array",2,"three"],` + `"first":10,"second":20}}}` actual := json.String() if actual != expected { t.Errorf("received incorrect output from json object: %v\n", actual) } } type outterJSON struct { FirstInner innerJSON SecondInner innerJSON ThirdInner innerJSON } type innerJSON struct { NumberType float64 StringType string } type jsonStructure struct { FirstOutter outterJSON SecondOutter outterJSON } var jsonContent = []byte(`{ "firstOutter":{ "firstInner":{ "numberType":11, "stringType":"hello world, first first" }, "secondInner":{ "numberType":12, "stringType":"hello world, first second" }, "thirdInner":{ "numberType":13, "stringType":"hello world, first third" } }, "secondOutter":{ "firstInner":{ "numberType":21, "stringType":"hello world, second first" }, "secondInner":{ "numberType":22, "stringType":"hello world, second second" }, "thirdInner":{ "numberType":23, "stringType":"hello world, second third" } } }`) /* Simple use case, compares unmarshalling declared structs vs dynamically searching for the equivalent hierarchy. Hopefully we won't see too great a performance drop from the dynamic approach. */ func BenchmarkStatic(b *testing.B) { for i := 0; i < b.N; i++ { var jsonObj jsonStructure json.Unmarshal(jsonContent, &jsonObj) if val := jsonObj.FirstOutter.SecondInner.NumberType; val != 12 { b.Errorf("Wrong value of FirstOutter.SecondInner.NumberType: %v\n", val) } expected := "hello world, first second" if val := jsonObj.FirstOutter.SecondInner.StringType; val != expected { b.Errorf("Wrong value of FirstOutter.SecondInner.StringType: %v\n", val) } if val := jsonObj.SecondOutter.ThirdInner.NumberType; val != 23 { b.Errorf("Wrong value of SecondOutter.ThirdInner.NumberType: %v\n", val) } expected = "hello world, second second" if val := jsonObj.SecondOutter.SecondInner.StringType; val != expected { b.Errorf("Wrong value of SecondOutter.SecondInner.StringType: %v\n", val) } } } func BenchmarkDynamic(b *testing.B) { for i := 0; i < b.N; i++ { jsonObj, err := ParseJSON(jsonContent) if err != nil { b.Errorf("Error parsing json: %v\n", err) } FOSI := jsonObj.S("firstOutter", "secondInner") SOSI := jsonObj.S("secondOutter", "secondInner") SOTI := jsonObj.S("secondOutter", "thirdInner") if val := FOSI.S("numberType").Data().(float64); val != 12 { b.Errorf("Wrong value of FirstOutter.SecondInner.NumberType: %v\n", val) } expected := "hello world, first second" if val := FOSI.S("stringType").Data().(string); val != expected { b.Errorf("Wrong value of FirstOutter.SecondInner.StringType: %v\n", val) } if val := SOTI.S("numberType").Data().(float64); val != 23 { b.Errorf("Wrong value of SecondOutter.ThirdInner.NumberType: %v\n", val) } expected = "hello world, second second" if val := SOSI.S("stringType").Data().(string); val != expected { b.Errorf("Wrong value of SecondOutter.SecondInner.StringType: %v\n", val) } } } func TestBadIndexes(t *testing.T) { jsonObj, err := ParseJSON([]byte(`{"array":[1,2,3]}`)) if err != nil { t.Error(err) } if act := jsonObj.Index(0).Data(); nil != act { t.Errorf("Unexpected value returned: %v != %v", nil, act) } if act := jsonObj.S("array").Index(4).Data(); nil != act { t.Errorf("Unexpected value returned: %v != %v", nil, act) } } func TestNilSet(t *testing.T) { obj := Container{nil} if _, err := obj.Set("bar", "foo"); err != nil { t.Error(err) } if _, err := obj.Set("new", "foo", "bar"); err != ErrPathCollision { t.Errorf("Expected ErrPathCollision: %v, %s", err, obj.Data()) } if _, err := obj.SetIndex("new", 0); err != ErrNotArray { t.Errorf("Expected ErrNotArray: %v, %s", err, obj.Data()) } } func TestLargeSampleWithHtmlEscape(t *testing.T) { sample := []byte(`{ "test": { "innerTest": { "value": 10, "value2": "Title", "value3": { "moreValue": 45 } } }, "test2": 20 }`) sampleWithHTMLEscape := []byte(`{ "test": { "innerTest": { "value": 10, "value2": "\u003ctitle\u003eTitle\u003c/title\u003e", "value3": { "moreValue": 45 } } }, "test2": 20 }`) val, err := ParseJSON(sample) if err != nil { t.Errorf("Failed to parse: %v", err) return } exp := string(sample) res := string(val.EncodeJSON(EncodeOptIndent("", "\t"))) if exp != res { t.Errorf("Wrong conversion without html escaping: %s != %s", res, exp) } exp = string(sampleWithHTMLEscape) res = string(val.EncodeJSON(EncodeOptHTMLEscape(true), EncodeOptIndent("", "\t"))) if exp != res { t.Errorf("Wrong conversion with html escaping: %s != %s", exp, res) } } func TestMergeCases(t *testing.T) { type testCase struct { first string second string expected string } testCases := []testCase{ { first: `{"outter":{"value1":"one"}}`, second: `{"outter":{"inner":{"value3": "threre"}},"outter2":{"value2": "two"}}`, expected: `{"outter":{"inner":{"value3":"threre"},"value1":"one"},"outter2":{"value2":"two"}}`, }, { first: `{"outter":["first"]}`, second: `{"outter":["second"]}`, expected: `{"outter":["first","second"]}`, }, { first: `{"outter":["first",{"inner":"second"}]}`, second: `{"outter":["third"]}`, expected: `{"outter":["first",{"inner":"second"},"third"]}`, }, { first: `{"outter":["first",{"inner":"second"}]}`, second: `{"outter":"third"}`, expected: `{"outter":["first",{"inner":"second"},"third"]}`, }, { first: `{"outter":"first"}`, second: `{"outter":"second"}`, expected: `{"outter":["first","second"]}`, }, { first: `{"outter":{"inner":"first"}}`, second: `{"outter":{"inner":"second"}}`, expected: `{"outter":{"inner":["first","second"]}}`, }, { first: `{"outter":{"inner":"first"}}`, second: `{"outter":"second"}`, expected: `{"outter":[{"inner":"first"},"second"]}`, }, { first: `{"outter":{"inner":"second"}}`, second: `{"outter":{"inner":{"inner2":"first"}}}`, expected: `{"outter":{"inner":["second",{"inner2":"first"}]}}`, }, { first: `{"outter":{"inner":["second"]}}`, second: `{"outter":{"inner":{"inner2":"first"}}}`, expected: `{"outter":{"inner":["second",{"inner2":"first"}]}}`, }, { first: `{"outter":"second"}`, second: `{"outter":{"inner":"first"}}`, expected: `{"outter":["second",{"inner":"first"}]}`, }, { first: `{"outter":"first"}`, second: `{"outter":["second"]}`, expected: `{"outter":["first","second"]}`, }, } for i, test := range testCases { var firstContainer, secondContainer *Container var err error firstContainer, err = ParseJSON([]byte(test.first)) if err != nil { t.Errorf("[%d] Failed to parse '%v': %v", i, test.first, err) } secondContainer, err = ParseJSON([]byte(test.second)) if err != nil { t.Errorf("[%d] Failed to parse '%v': %v", i, test.second, err) } if err = firstContainer.Merge(secondContainer); err != nil { t.Errorf("[%d] Failed to merge: '%v': %v", i, test.first, err) } if exp, act := test.expected, firstContainer.String(); exp != act { t.Errorf("[%d] Wrong result: %v != %v", i, act, exp) } } } func TestMarshalsJSON(t *testing.T) { sample := []byte(`{"test":{"value":10},"test2":20}`) val, err := ParseJSON(sample) if err != nil { t.Fatal(err) } marshaled, err := json.Marshal(val) if err != nil { t.Fatal(err) } if exp, act := string(sample), string(marshaled); exp != act { t.Errorf("Unexpected result: %v != %v", act, exp) } } gabs-2.3.0/go.mod000066400000000000000000000000421357441163300135410ustar00rootroot00000000000000module github.com/Jeffail/gabs/v2 gabs-2.3.0/migration.md000066400000000000000000000045571357441163300147650ustar00rootroot00000000000000Migration Guides ================ ## Migrating to Version 2 ### Path Previously it was not possible to specify a dot path where a key itself contains a dot. In v2 it is now possible with the escape sequence `~1`. For example, given the JSON doc `{"foo":{"bar.baz":10}}`, the path `foo.bar~1baz` would return `10`. This escape sequence means the character `~` is also a special case, therefore it must also be escaped to the sequence `~0`. ### Consume Calls to `Consume(root interface{}) (*Container, error)` should be replaced with `Wrap(root interface{}) *Container`. The error response was removed in order to avoid unnecessary duplicate type checks on `root`. This also allows shorthand chained queries like `gabs.Wrap(foo).S("bar","baz").Data()`. ### Search Across Arrays All query functions (`Search`, `Path`, `Set`, `SetP`, etc) now attempt to resolve a specific index when they encounter an array. This means path queries must specify an integer index at the level of arrays within the content. For example, given the sample document: ``` json { "foo": [ { "bar": { "baz": 45 } } ] } ``` In v1 the query `Search("foo", "bar", "baz")` would propagate the array in the result giving us `[45]`. In v2 we can access the field directly with `Search("foo", "0", "bar", "baz")`. The index is _required_, otherwise the query fails. In query functions that do not set a value it is possible to specify `*` instead of an index in order to obtain all elements of the array, this produces the equivalent result as the behaviour from v1. For example, in v2 the query `Search("foo", "*", "bar", "baz")` would return `[45]`. ### Children and ChildrenMap The `Children` and `ChildrenMap` methods no longer return errors. Instead, in the event of the underlying value being invalid (not an array or object), a `nil` slice and empty map are returned respectively. If explicit type checking is required the recommended approach would be casting on the value, e.g. `foo, ok := obj.Data().([]interface)`. ### Serialising Invalid Types In v1 attempting to serialise with `Bytes`, `String`, etc, with an invalid structure would result in an empty object `{}`. This behaviour was unintuitive and in v2 `null` will be returned instead. If explicit marshalling is required with proper error propagation it is still recommended to use the `json` package directly on the underlying value.