### Installing JSON-Patch Library with Go

Source: https://github.com/evanphx/json-patch/blob/master/README.md

Command to install the latest version of the json-patch library using go get

```bash
go get -u github.com/evanphx/json-patch/v5
```

--------------------------------

### Creating and Applying JSON Patches in Go

Source: https://github.com/evanphx/json-patch/blob/master/README.md

Example showing how to create and apply a JSON patch with multiple operations

```go
package main

import (
	"fmt"

	jsonpatch "github.com/evanphx/json-patch"
)

func main() {
	original := []byte(`{"name": "John", "age": 24, "height": 3.21}`)
	patchJSON := []byte(`[
		{"op": "replace", "path": "/name", "value": "Jane"},
		{"op": "remove", "path": "/height"}
	]`)

	patch, err := jsonpatch.DecodePatch(patchJSON)
	if err != nil {
		panic(err)
	}

	modified, err := patch.Apply(original)
	if err != nil {
		panic(err)
	}

	fmt.Printf("Original document: %s\n", original)
	fmt.Printf("Modified document: %s\n", modified)
}
```

--------------------------------

### Comparing JSON Documents in Go

Source: https://github.com/evanphx/json-patch/blob/master/README.md

Example demonstrating how to compare JSON documents for structural equality

```go
package main

import (
	"fmt"

	jsonpatch "github.com/evanphx/json-patch"
)

func main() {
	original := []byte(`{"name": "John", "age": 24, "height": 3.21}`)
	similar := []byte(`
		{
			"age": 24,
			"height": 3.21,
			"name": "John"
		}
	`)
	different := []byte(`{"name": "Jane", "age": 20, "height": 3.37}`)

	if jsonpatch.Equal(original, similar) {
		fmt.Println(`"original" is structurally equal to "similar"`)
	}

	if !jsonpatch.Equal(original, different) {
		fmt.Println(`"original" is _not_ structurally equal to "different"`)
	}
}
```

--------------------------------

### Creating and Applying JSON Merge Patches in Go

Source: https://github.com/evanphx/json-patch/blob/master/README.md

Example demonstrating how to create a merge patch from two JSON documents and apply it to a third document

```go
package main

import (
	"fmt"

	jsonpatch "github.com/evanphx/json-patch"
)

func main() {
	// Let's create a merge patch from these two documents...
	original := []byte(`{"name": "John", "age": 24, "height": 3.21}`)
	target := []byte(`{"name": "Jane", "age": 24}`)

	patch, err := jsonpatch.CreateMergePatch(original, target)
	if err != nil {
		panic(err)
	}

	// Now lets apply the patch against a different JSON document...

	alternative := []byte(`{"name": "Tina", "age": 28, "height": 3.75}`)
	modifiedAlternative, err := jsonpatch.MergePatch(alternative, patch)

	fmt.Printf("patch document:   %s\n", patch)
	fmt.Printf("updated alternative doc: %s\n", modifiedAlternative)
}
```

--------------------------------

### Combining JSON Merge Patches in Go

Source: https://github.com/evanphx/json-patch/blob/master/README.md

Example showing how to combine multiple JSON merge patches into a single patch

```go
package main

import (
	"fmt"

	jsonpatch "github.com/evanphx/json-patch"
)

func main() {
	original := []byte(`{"name": "John", "age": 24, "height": 3.21}`)

	nameAndHeight := []byte(`{"height":null,"name":"Jane"}`)
	ageAndEyes := []byte(`{"age":4.23,"eyes":"blue"}`)

	// Let's combine these merge patch documents...
	combinedPatch, err := jsonpatch.MergeMergePatches(nameAndHeight, ageAndEyes)
	if err != nil {
		panic(err)
	}

	// Apply each patch individual against the original document
	withoutCombinedPatch, err := jsonpatch.MergePatch(original, nameAndHeight)
	if err != nil {
		panic(err)
	}

	withoutCombinedPatch, err = jsonpatch.MergePatch(withoutCombinedPatch, ageAndEyes)
	if err != nil {
		panic(err)
	}

	// Apply the combined patch against the original document

	withCombinedPatch, err := jsonpatch.MergePatch(original, combinedPatch)
	if err != nil {
		panic(err)
	}

	// Do both result in the same thing? They should!
	if jsonpatch.Equal(withCombinedPatch, withoutCombinedPatch) {
		fmt.Println("Both JSON documents are structurally the same!")
	}

	fmt.Printf("combined merge patch: %s", combinedPatch)
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.