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:

• ArrayIndexFilter
• ArrayMultipleIndexFilter
• ArraySliceFilter
• FieldFilter
• FieldMultipleFilter
• QueryFilter
• QueryScanFilter
• RootFilter
• ScanFilter
• ScanMultipleFilter

Unit Test:

• JPathParseTests
• QueryExpressionTests
• JPathExecuteTests