Refitter.MSBuild 1.7.1

MSBuild Tasks for Refitter

Refitter is available as custom MSBuild tasks that includes the Refitter CLI executable for generating a REST API Client using the Refit library. Refitter can generate the Refit interface from OpenAPI specifications. Refitter could format the generated Refit interface to be managed by Apizr (v6+) and generate some registration helpers too.

Installation

dotnet add package Refitter.MSBuild

How It Works

The MSBuild package includes a custom .target file which executes the RefitterGenerateTask custom task and looks something like this:

<UsingTask TaskName="RefitterGenerateTask"
           AssemblyFile="$(MSBuildThisFileDirectory)Refitter.MSBuild.dll"
           Condition="Exists('$(MSBuildThisFileDirectory)Refitter.MSBuild.dll')" />
<Target Name="RefitterGenerate" BeforeTargets="BeforeCompile">
    <RefitterGenerateTask ProjectFileDirectory="$(MSBuildProjectDirectory)"
                          DisableLogging="$(RefitterNoLogging)"
                          SkipValidation="$(RefitterSkipValidation)">
        <Output TaskParameter="GeneratedFiles" ItemName="RefitterGeneratedFiles" />
    </RefitterGenerateTask>
    <ItemGroup>
        <Compile Include="@(RefitterGeneratedFiles)" />
    </ItemGroup>
</Target>

The RefitterGenerateTask task will scan the project folder for .refitter files and execute them all.

Configuration

By default, telemetry collection is enabled. To opt-out, add the following to your .csproj file:

<PropertyGroup>
  <RefitterNoLogging>true</RefitterNoLogging>
</PropertyGroup>

You can also skip OpenAPI validation by setting:

<PropertyGroup>
  <RefitterSkipValidation>true</RefitterSkipValidation>
</PropertyGroup>

Example

Create a .refitter file in your project:

{
  "openApiPath": "https://petstore3.swagger.io/api/v3/openapi.json",
  "namespace": "Petstore.Api",
  "outputFolder": "./Generated"
}

Now, every time you build your project, Refitter will automatically generate the API client code based on your OpenAPI specification.

.Refitter File format

The following is an example .refitter file

{
  "openApiPath": "/path/to/your/openAPI", // Required
  "namespace": "Org.System.Service.Api.GeneratedCode", // Optional. Default=GeneratedCode
  "naming": {
    "useOpenApiTitle": false, // Optional. Default=true
    "interfaceName": "MyApiClient" // Optional. Default=ApiClient
  },
  "generateContracts": true, // Optional. Default=true
  "generateXmlDocCodeComments": true, // Optional. Default=true
  "generateStatusCodeComments": true, // Optional. Default=true
  "addAutoGeneratedHeader": true, // Optional. Default=true
  "addAcceptHeaders": true, // Optional. Default=true
  "addContentTypeHeaders": true, // Optional. Default=true
  "returnIApiResponse": false, // Optional. Default=false
  "responseTypeOverride": { // Optional. Default={}
    "File_Upload": "IApiResponse",
    "File_Download": "System.Net.Http.HttpContent"
  },
  "generateOperationHeaders": true, // Optional. Default=true
  "ignoredOperationHeaders": ["apiKey"], // Optional. Default=[]
  "typeAccessibility": "Public", // Optional. Values=Public|Internal. Default=Public
  "useCancellationTokens": false, // Optional. Default=false
  "useIsoDateFormat": false, // Optional. Default=false
  "multipleInterfaces": "ByEndpoint", // Optional. May be one of "ByEndpoint" or "ByTag"
  "generateDeprecatedOperations": false, // Optional. Default=true
  "operationNameTemplate": "{operationName}Async", // Optional. Must contain {operationName}. When multipleInterfaces == "ByEndpoint", this is name of the Execute() method in the interface where all instances of the string '{operationName}' is replaced with 'Execute'
  "optionalParameters": false, // Optional. Default=false
  "outputFolder": "../CustomOutput" // Optional. Default=./Generated
  "outputFilename": "RefitInterface.cs", // Optional. Default=Output.cs for CLI tool
  "additionalNamespaces": [ // Optional
    "Namespace1",
    "Namespace2"
  ],
  "includeTags": [ // Optional. OpenAPI Tag to include when generating code
    "Pet",
    "Store",
    "User"
  ],
  "includePathMatches": [ // Optional. Only include Paths that match the provided regular expression
    "^/pet/.*",
    "^/store/.*"
  ],
  "useDynamicQuerystringParameters": true, // Optional. Default=false
  "usePolymorphicSerialization": false, // Optional. Default=false
  "dependencyInjectionSettings": { // Optional
    "baseUrl": "https://petstore3.swagger.io/api/v3", // Optional. Leave this blank to set the base address manually
    "httpMessageHandlers": [ // Optional
        "AuthorizationMessageHandler",
        "TelemetryMessageHandler"
    ],
    "transientErrorHandler": "Polly", // Optional. Value=None|Polly|HttpResilience
    "maxRetryCount": 3, // Optional. Default=6
    "firstBackoffRetryInSeconds": 0.5 // Optional. Default=1.0
  },
  "apizrSettings": { // Optional
    "withRequestOptions": true, // Optional. Default=true
    "withRegistrationHelper": true, // Optional. Default=false
    "withCacheProvider": "InMemory", // Optional. Values=None|Akavache|MonkeyCache|InMemory|DistributedAsString|DistributedAsByteArray. Default=None
    "withPriority": true, // Optional. Default=false
    "withMediation": true, // Optional. Default=false
    "withOptionalMediation": true, // Optional. Default=false
    "withMappingProvider": "AutoMapper", // Optional. Values=None|AutoMapper|Mapster. Default=None
    "withFileTransfer": true // Optional. Default=false
  },
  "codeGeneratorSettings": { // Optional. Default settings are the values set in this example
    "requiredPropertiesMustBeDefined": true,
    "generateDataAnnotations": true,
    "anyType": "object",
    "dateType": "System.DateTimeOffset",
    "dateTimeType": "System.DateTimeOffset",
    "timeType": "System.TimeSpan",
    "timeSpanType": "System.TimeSpan",
    "arrayType": "System.Collections.Generic.ICollection",
    "dictionaryType": "System.Collections.Generic.IDictionary",
    "arrayInstanceType": "System.Collections.ObjectModel.Collection",
    "dictionaryInstanceType": "System.Collections.Generic.Dictionary",
    "arrayBaseType": "System.Collections.ObjectModel.Collection",
    "dictionaryBaseType": "System.Collections.Generic.Dictionary",
    "integerType": "Int32", // Optional. Default="Int32". The .NET type for OpenAPI integers without a format. Possible values: "Int32", "Int64"
    "propertySetterAccessModifier": "",
    "generateImmutableArrayProperties": false,
    "generateImmutableDictionaryProperties": false,
    "handleReferences": false,
    "jsonSerializerSettingsTransformationMethod": null,
    "generateJsonMethods": false,
    "enforceFlagEnums": false,
    "inlineNamedDictionaries": false,
    "inlineNamedTuples": true,
    "inlineNamedArrays": false,
    "generateOptionalPropertiesAsNullable": false,
    "generateNullableReferenceTypes": false,
    "generateNativeRecords": false,
    "generateDefaultValues": true,
    "inlineNamedAny": false,
    "excludedTypeNames": [
      "ExcludedTypeFoo",
      "ExcludedTypeBar"
    ]
  }
}

• openApiPath - points to the OpenAPI Specifications file. This can be the path to a file stored on disk, relative to the .refitter file. This can also be a URL to a remote file that will be downloaded over HTTP/HTTPS
• namespace - the namespace used in the generated code. If not specified, this defaults to GeneratedCode
• naming.useOpenApiTitle - a boolean indicating whether the OpenApi title should be used. Default is true
• naming.interfaceName - the name of the generated interface. The generated code will automatically prefix this with I so if this set to MyApiClient then the generated interface is called IMyApiClient. Default is ApiClient
• generateContracts - a boolean indicating whether contracts should be generated. A use case for this is several API clients use the same contracts. Default is true
• generateXmlDocCodeComments - a boolean indicating whether XML doc comments should be generated. Default is true
• addAutoGeneratedHeader - a boolean indicating whether XML doc comments should be generated. Default is true
• addAcceptHeaders - a boolean indicating whether to add accept headers [Headers("Accept: application/json")]. Default is true
• returnIApiResponse - a boolean indicating whether to return IApiResponse<T> objects. Default is false
• responseTypeOverride - a dictionary with operation ids (as specified in the OpenAPI document) and a particular return type to use. The types are wrapped in a task, but otherwise unmodified (so make sure to specify or import their namespaces). Default is {}
• generateOperationHeaders - a boolean indicating whether to use operation headers in the generated methods. Default is true
• ignoredOperationHeaders - A collection of headers to omit from operation signatures. Default is []
• typeAccessibility - the generated type accessibility. Possible values are Public and Internal. Default is Public
• useCancellationTokens - Use cancellation tokens in the generated methods. Default is false
• useIsoDateFormat - Set to true to explicitly format date query string parameters in ISO 8601 standard date format using delimiters (for example: 2023-06-15). Default is false
• multipleInterfaces - Set to ByEndpoint to generate an interface for each endpoint, or ByTag to group Endpoints by their Tag (like SwaggerUI groups them).
• outputFolder - a string describing a relative path to a desired output folder. Default is ./Generated
• outputFilename - Output filename. Default is Output.cs when used from the CLI tool, otherwise its the .refitter filename. So Petstore.refitter becomes Petstore.cs.
• additionalNamespaces - A collection of additional namespaces to include in the generated file. A use case for this is when you want to reuse contracts from a different namespace than the generated code. Default is empty
• includeTags - A collection of tags to use a filter for including endpoints that contain this tag.
• includePathMatches - A collection of regular expressions used to filter paths.
• generateDeprecatedOperations - a boolean indicating whether deprecated operations should be generated or skipped. Default is true
• operationNameTemplate - Generate operation names using pattern. This must contain the string {operationName}. An example usage of this could be {operationName}Async to suffix all method names with Async. When using multiple interfaces with ByEndpoint, this is name of the Execute() method in the interface where all instances of the string '{operationName}' is replaced with 'Execute'
• optionalParameters - Generate non-required parameters as nullable optional parameters
• useDynamicQuerystringParameters: Set to true to wrap multiple query parameters into a single complex one. Default is false (no wrapping).
• dependencyInjectionSettings - Setting this will generated extension methods to IServiceCollection for configuring Refit clients. See https://github.com/reactiveui/refit?tab=readme-ov-file#dynamic-querystring-parameters for more information.
  • baseUrl - Used as the HttpClient base address. Leave this blank to manually set the base URL
  • httpMessageHandlers - A collection of HttpMessageHandler that is added to the HttpClient pipeline
  • transientErrorHandler - This is the transient error handler to use. Possible values are None, Polly, and HttpResilience. Default is None
  • maxRetryCount - This is the max retry count used in the Polly retry policy. Default is 6
  • firstBackoffRetryInSeconds - This is the duration of the initial retry backoff. Default is 1 second
• apizrSettings - Setting this will format Refit interface to be managed by Apizr. See https://www.apizr.net for more information
  • withRequestOptions - Tells if the Refit interface methods should have a final IApizrRequestOptions options parameter
  • withRegistrationHelper - Tells if Refitter should generate Apizr registration helpers (extended with dependencyInjectionSettings set, otherwise static)
  • withCacheProvider - Set the cache provider to be used
  • withPriority - Tells if Apizr should handle request priority
  • withMediation - Tells if Apizr should handle request mediation (extended only)
  • withOptionalMediation - Tells if Apizr should handle optional request mediation (extended only)
  • withMappingProvider - Set the mapping provider to be used
  • withFileTransfer - Tells if Apizr should handle file transfer
• codeGeneratorSettings - Setting this allows customization of the NSwag generated types and contracts
  • requiredPropertiesMustBeDefined - Default is true,
  • generateDataAnnotations - Default is true,
  • anyType - Default is object,
  • dateType - Default is System.DateTimeOffset,
  • dateTimeType - Default is System.DateTimeOffset,
  • timeType - Default is System.TimeSpan,
  • timeSpanType - Default is System.TimeSpan,
  • arrayType - Default is System.Collections.Generic.ICollection,
  • dictionaryType - Default is System.Collections.Generic.IDictionary,
  • arrayInstanceType - Default is System.Collections.ObjectModel.Collection,
  • dictionaryInstanceType - Default is System.Collections.Generic.Dictionary,
  • arrayBaseType - Default is System.Collections.ObjectModel.Collection,
  • dictionaryBaseType - Default is System.Collections.Generic.Dictionary,
  • integerType - Default is Int32. The .NET type to use for OpenAPI integer types without a format specifier. Possible values: Int32, Int64
  • propertySetterAccessModifier - Default is ``,
  • generateImmutableArrayProperties - Default is false,
  • generateImmutableDictionaryProperties - Default is false,
  • handleReferences - Default is false,
  • jsonSerializerSettingsTransformationMethod - Default is null,
  • generateJsonMethods - Default is false,
  • enforceFlagEnums - Default is false,
  • inlineNamedDictionaries - Default is false,
  • inlineNamedTuples - Default is true,
  • inlineNamedArrays - Default is false,
  • generateOptionalPropertiesAsNullable - Default is false,
  • generateNullableReferenceTypes - Default is false,
  • generateNativeRecords - Default is false
  • generateDefaultValues - Default is true
  • inlineNamedAny - Default is false
  • excludedTypeNames - Default is empty