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https://github.com/danielaparker/jsoncons.net
The JsonCons.Net libraries complement the System.Text.Json namespace with support for JSON Pointer, JSON Patch, JSON Merge Patch, JSONPath, and JMESPath.
https://github.com/danielaparker/jsoncons.net
csharp dotnet dotnet-core dotnetstandard jmespath json json-merge-patch json-patch json-pointer jsonpatch jsonpath jsonpointer
Last synced: about 1 month ago
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The JsonCons.Net libraries complement the System.Text.Json namespace with support for JSON Pointer, JSON Patch, JSON Merge Patch, JSONPath, and JMESPath.
- Host: GitHub
- URL: https://github.com/danielaparker/jsoncons.net
- Owner: danielaparker
- License: apache-2.0
- Created: 2021-05-20T08:00:31.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-01-27T13:04:57.000Z (10 months ago)
- Last Synced: 2024-10-06T07:48:18.376Z (about 2 months ago)
- Topics: csharp, dotnet, dotnet-core, dotnetstandard, jmespath, json, json-merge-patch, json-patch, json-pointer, jsonpatch, jsonpath, jsonpointer
- Language: C#
- Homepage:
- Size: 2.75 MB
- Stars: 53
- Watchers: 3
- Forks: 7
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# JsonCons.Net
|JsonCons.Utilities|JsonCons.JsonPath|JsonCons.JmesPath|
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The JsonCons.Net libraries include classes that complement the functionality of the
[System.Text.Json namespace](https://docs.microsoft.com/en-us/dotnet/api/system.text.json?view=netcore-3.1).
The libraries target .Net Standard 2.1.
The JsonCons.Net libraries offer support for:
- JSON Pointer as defined in [RFC 6901](https://datatracker.ietf.org/doc/html/rfc6901)
- JSON Patch as defined in [RFC 6902](https://datatracker.ietf.org/doc/html/rfc6902)
- JSON Merge Patch as defined in [RFC 7396](https://datatracker.ietf.org/doc/html/rfc7396)
- JSONPath as defined in [JsonCons JsonPath](https://danielaparker.github.io/JsonCons.Net/articles/JsonPath/Specification.html)
- JMESPath as defined in [JMESPath Specification](https://jmespath.org/specification.html)
## JSONPath and JMESPath
JSONPath allows you to select from a [JsonDocument](https://docs.microsoft.com/en-us/dotnet/api/system.text.json.jsondocument?view=net-5.0)
a list of [JsonElement](https://docs.microsoft.com/en-us/dotnet/api/system.text.json.jsonelement?view=net-5.0) instances
that belong to it. JMESPath allows you to transform a [JsonDocument](https://docs.microsoft.com/en-us/dotnet/api/system.text.json.jsondocument?view=net-5.0)
into another
[JsonDocument](https://docs.microsoft.com/en-us/dotnet/api/system.text.json.jsondocument?view=net-5.0).
For example, consider the JSON data
```json
string jsonString = @"
{
""Data"":[
{
""KeyOfInterest"":true,
""AnotherKey"":true
},
{
""KeyOfInterest"":false,
""AnotherKey"":true
},
{
""KeyOfInterest"":true,
""AnotherKey"":true
}
]
}
";
using JsonDocument doc = JsonDocument.Parse(jsonString);
```
JSONPath allows you to select the `KeyOfInterest` values like this:
```csharp
string path = "$.Data[*].KeyOfInterest";
IList results = JsonSelector.Select(doc.RootElement, path);
```
and the union of `KeyOfInterest` and `AnotherKey` values like this:
```csharp
string path = "$.Data[*]['KeyOfInterest', 'AnotherKey']";
IList results = JsonSelector.Select(doc.RootElement, path);
```
The first query produces
```json
[true,false,true]
```
and the second
```json
[true,true,false,true,true,true]
```
Note that each element in the result - `true`, `false`, `true` - corresponds to an element
at a specific location in the original JSON document. This is a feature of JSONPath.
JMESPath allows you to select the `KeyOfInterest` values like this:
```csharp
string expr = Data[*].KeyOfInterest;
JsonDocument result = JsonTransformer.Transform(doc.RootElement, expr);
```
and a multiselect hash of `KeyOfInterest` and `AnotherKey` values like this:
```csharp
string expr = "Data[*].{\"Key of Interest\" : KeyOfInterest, \"Another Key\": AnotherKey}";
JsonDocument result = JsonTransformer.Transform(doc.RootElement, expr);
```
The first query produces
```json
[true,false,true]
```
and the second
```json
[
{
"Key of Interest": true,
"Another Key": true
},
{
"Key of Interest": false,
"Another Key": true
},
{
"Key of Interest": true,
"Another Key": true
}
]
```
JMESPath, unlike JSONPath, can create new elements that are not in the original document.
JMESPath can transform, while JsonPath can only select.
## Documentation and Examples
Reference documentation is available [here](https://danielaparker.github.io/JsonCons.Net/ref/)
Code examples may be found at:
[JSON Pointer examples](https://github.com/danielaparker/JsonCons.Net/blob/main/examples/JsonPointer.Examples/JsonPointerExamples.cs)
[JSON Patch examples](https://github.com/danielaparker/JsonCons.Net/blob/main/examples/JsonPatch.Examples/JsonPatchExamples.cs)
[JSON Merge Patch examples](https://github.com/danielaparker/JsonCons.Net/blob/main/examples/JsonMergePatch.Examples/JsonMergePatchExamples.cs)
[JSONPath examples](https://github.com/danielaparker/JsonCons.Net/blob/main/examples/JsonPath.Examples/JsonPathExamples.cs)
[JMESPath examples](https://github.com/danielaparker/JsonCons.Net/blob/main/examples/JmesPath.Examples/JmesPathExamples.cs)