JsonDocumentPath

JsonDocumentPath is a class library to extract values from JSON (System.Text.Json.JsonDocument) with single line expressions

The JsonPath parser is based on the Newtonsoft.Json

NuGet Package

How to use it

  string json = @"{
    ""persons"": [
      {
        ""name""  : ""John"",
        ""age"": ""26""
      },
      {
        ""name""  : ""Jane"",
        ""age"": ""2""
      }
    ]
  }";

var models = JsonDocument.Parse(json);

var results = models.SelectElements("$.persons[?(@.age > 3)]").ToList();

Implementation

Because JsonDocumentPath is using the same Json.net strategic for parsing and evaluation the following is a list of pieces were already implemented:

Filters:

• [x] ArrayIndexFilter
• [x] ArrayMultipleIndexFilter
• [x] ArraySliceFilter
• [x] FieldFilter
• [x] FieldMultipleFilter
• [x] QueryFilter
• [x] QueryScanFilter
• [x] RootFilter
• [x] ScanFilter
• [x] ScanMultipleFilter

Unit Test:

• [x] JPathParseTests
• [x] QueryExpressionTests
• [x] JPathExecuteTests