A C# Source Generator that uses Refitter for generating a REST API Client using the Refit library from OpenAPI specifications.
Get Started
$ dotnet add package Refitter.SourceGeneratorReadme
Source Generator
Refitter is available as a C# Source Generator that uses the Refitter.Core library 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.
The Refitter source generator is a bit untraditional in a sense that it creates a folder called Generated in the same location as the .refitter file and generates files to disk under the Generated folder (can be changed with --outputFolder). The source generator output should be included in the project and committed to source control. This is done because there is no other way to trigger the Refit source generator to pickup the Refitter generated code
(Translation: I couldn't for the life of me figure how to get that to work, sorry)
Installation
The source generator is distributed as a NuGet package and should be installed to the project that will contain the generated code
dotnet add package Refitter.SourceGenerator
Usage
This source generator generates code based on any .refitter file included to the project as AdditionalFiles.
The generator can automatically detect all .refitter files inside the project that referenced the Refitter.SourceGenerator package and there is no need to include them manually as AdditionalFiles
.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
"returnIApiResponse": false, // Optional. Default=false
"responseTypeOverride": { // Optional. Default={}
"File_Upload": "IApiResponse",
"File_Download": "System.Net.Http.HttpContent"
},
"generateOperationHeaders": true, // Optional. Default=true
"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
"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",
"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"
]
}
}