JsonPeek 1.1.0

Install-Package JsonPeek -Version 1.1.0
dotnet add package JsonPeek --version 1.1.0
<PackageReference Include="JsonPeek" Version="1.1.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add JsonPeek --version 1.1.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: JsonPeek, 1.1.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install JsonPeek as a Cake Addin
#addin nuget:?package=JsonPeek&version=1.1.0

// Install JsonPeek as a Cake Tool
#tool nuget:?package=JsonPeek&version=1.1.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

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  <JsonPeek ContentPath="[JSON_FILE]" Query="[JSONPath]">
    <Output TaskParameter="Result" PropertyName="Value" />
  <JsonPeek Content="[JSON]" Query="[JSONPath]">
    <Output TaskParameter="Result" ItemName="Values" />

You can either provide the path to a JSON file via ContentPath or provide the straight JSON content to Content. The Query is a JSONPath expression that is evaluated and returned via the Result task parameter. You can assign the resulting value to either a property (i.e. for a single value) or an item name (i.e. for multiple results).

JSON object properties are automatically projected as item metadata when assigning the resulting value to an item. For example, given the following JSON:

  "http": {
    "host": "localhost",
    "port": 80,
    "ssl": true

You can read the entire http value as an item with each property as a metadata value with:

<JsonPeek ContentPath="host.json" Query="$.http">
  <Output TaskParameter="Result" ItemName="Http" />

The Http item will have the following values (if it were declared in MSBuild):

  <Http Include="[item raw json]">

These item metadata values could be read as MSBuild properties as follows, for example:

  <Host>@(Http -> '%(host)')</Host>
  <Port>@(Http -> '%(port)')</Port>
  <Ssl>@(Http -> '%(ssl)')</Ssl>

In addition to the explicitly opted in object properties, the entire node is available as raw JSON via the special _ (single underscore) metadata item.

If the matched value is empty, no items (because items cannot be constructed with empty identity) or property value will be returned. This makes it difficult to distinguish a successfully matched empty value from no value matched at all. For these cases, it's possible to specify an Empty value to stand-in for an empty (but successful) matched result instead, which allow to distinguish both scenarios:

<JsonPeek Content="$(Json)" Empty="$empty" Query="$(Query)">
  <Output TaskParameter="Result" PropertyName="Value" />

<Error Condition="'$(Value)' == '$empty'" Text="The element $(Query) cannot have an empty value." />


Parameter Description
Content Optional string parameter.<br/>Specifies the JSON input as a string.
ContentPath Optional ITaskItem parameter.<br/>Specifies the JSON input as a file path.
Empty Optional string parameter.<br/>Value to use as a replacement for empty values matched in JSON.
Query Required string parameter.<br/>Specifies the JSONPath expression.
Result Output ITaskItem[] parameter.<br/>Contains the results that are returned by the task.


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This package has no dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on JsonPeek:

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Devlooped.Azure.Functions.OpenApi The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

OpenAPI/Swagger Source Generator for C# Azure Functions Built from https://github.com/devlooped/Azure.Functions.OpenApi/tree/027ade84f

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Version Downloads Last updated
1.1.0 788 2/3/2022
1.0.3 393 9/30/2021
1.0.2 146 9/15/2021