Merge pull request #206 from atc-net/feature/Support-for-AsyncEnumerable

Support for async enumerable

Author: davidkallesen

.editorconfig

@@ -567,6 +567,7 @@ dotnet_diagnostic.CA1848.severity = suggestion		# Use the LoggerMessage delegate
 dotnet_diagnostic.CA2254.severity = suggestion		# Template should be a static expression - https://docs.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca2254
 
 dotnet_diagnostic.S1172.severity = none				# False positive
+dotnet_diagnostic.S2325.Severity = none             # Make 'xxx' a static method
 dotnet_diagnostic.S2629.Severity = none
 dotnet_diagnostic.S3267.severity = none				# Loop should be simplified by calling Select(x => x.Value)) - We dont like this rule because of readability/maintainability
 dotnet_diagnostic.S3878.Severity = none
@@ -586,4 +587,6 @@ dotnet_diagnostic.CA1861.Severity = none
 dotnet_diagnostic.S125.Severity = none
 dotnet_diagnostic.S1481.Severity = none
 dotnet_diagnostic.SA1512.Severity = none
-dotnet_diagnostic.SA1513.Severity = none
+dotnet_diagnostic.SA1513.Severity = none
+
+dotnet_diagnostic.AsyncFixer02.Severity = none      # ToListAsync should be used instead of xxx

Directory.Build.props

@@ -43,10 +43,10 @@
   <ItemGroup Label="Code Analyzers">
     <PackageReference Include="AsyncFixer" Version="1.6.0" PrivateAssets="All" />
     <PackageReference Include="Asyncify" Version="0.9.7" PrivateAssets="All" />
-    <PackageReference Include="Meziantou.Analyzer" Version="2.0.162" PrivateAssets="All" />
+    <PackageReference Include="Meziantou.Analyzer" Version="2.0.163" PrivateAssets="All" />
     <PackageReference Include="SecurityCodeScan.VS2019" Version="5.6.7" PrivateAssets="All" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.435" PrivateAssets="All" />
-    <PackageReference Include="SonarAnalyzer.CSharp" Version="9.30.0.95878" PrivateAssets="All" />
+    <PackageReference Include="SonarAnalyzer.CSharp" Version="9.32.0.97167" PrivateAssets="All" />
   </ItemGroup>
 
 </Project>

README.md

@@ -1,24 +1,53 @@
-[![NuGet Version](https://img.shields.io/nuget/v/atc-rest-api-generator.svg?logo=nuget&style=for-the-badge)](https://www.nuget.org/packages/atc-rest-api-generator)
-
 # ATC-NET REST API Generator
 
+[![NuGet Version](https://img.shields.io/nuget/v/atc-rest-api-generator.svg?logo=nuget&style=for-the-badge)](https://www.nuget.org/packages/atc-rest-api-generator)
+
+## Table of content
+
+- [ATC-NET REST API Generator](#atc-net-rest-api-generator)
+  - [Table of content](#table-of-content)
+  - [Projects in the repository](#projects-in-the-repository)
+  - [Project dependency graph](#project-dependency-graph)
+  - [CLI Tool](#cli-tool)
+  - [Prerequisites](#prerequisites)
+    - [Requirements](#requirements)
+    - [Installation](#installation)
+    - [Update](#update)
+    - [Usage](#usage)
+      - [Option **-h | --help**](#option--h----help)
+      - [Option **generate server all -h**](#option-generate-server-all--h)
+      - [Command **options-file**](#command-options-file)
+      - [Default options-file - ApiGeneratorOptions.json](#default-options-file---apigeneratoroptionsjson)
+  - [PetStore Example](#petstore-example)
+  - [Security - supporting role-based security and custom authentication-schemes](#security---supporting-role-based-security-and-custom-authentication-schemes)
+    - [Roles and authentication-scheme validation](#roles-and-authentication-scheme-validation)
+    - [Logic for determining `[Authorize]` or `[AllowAnonymous]` attributes](#logic-for-determining-authorize-or-allowanonymous-attributes)
+    - [Example](#example)
+  - [OpenApi Snippets](#openapi-snippets)
+    - [List of items](#list-of-items)
+    - [List of items with a custom PaginationResult](#list-of-items-with-a-custom-paginationresult)
+    - [List of items with a built-in Pagination](#list-of-items-with-a-built-in-pagination)
+    - [AsyncEnumerable of items](#asyncenumerable-of-items)
+    - [AsyncEnumerable of items with a custom PaginationResult](#asyncenumerable-of-items-with-a-custom-paginationresult)
+    - [AsyncEnumerable of items with a built-in Pagination](#asyncenumerable-of-items-with-a-built-in-pagination)
+    - [Custom PaginationResult with query parameters](#custom-paginationresult-with-query-parameters)
+  - [How to contribute](#how-to-contribute)
 
 ## Projects in the repository
 
 |Project|Target Framework|Description|Nuget Download Link|
 |---|---|---|---|
 |[Atc.Rest.ApiGenerator](src/Atc.Rest.ApiGenerator) | net8.0 | Atc.Rest.ApiGenerator is a WebApi C# code generator using a OpenApi 3.0.x specification YAML file. | [![Nuget](https://img.shields.io/nuget/dt/Atc.Rest.ApiGenerator?logo=nuget&style=flat-square)](https://www.nuget.org/packages/Atc.Rest.ApiGenerator) |
 |[Atc.Rest.ApiGenerator.CLI](src/Atc.Rest.ApiGenerator.CLI) |net8.0 | A CLI tool that use Atc.Rest.ApiGenerator to create/update a project specified by a OpenApi 3.0.x specification YAML file. | [![Nuget](https://img.shields.io/nuget/dt/atc-rest-api-generator?logo=nuget&style=flat-square)](https://www.nuget.org/packages/atc-rest-api-generator) |
-|[Atc.Rest.ApiGenerator.CodingRules](src/Atc.Rest.ApiGenerator.CodingRules) | net8.0| Create/update atc coding rules for the generated code |
-|[Atc.Rest.ApiGenerator.Contracts](src/Atc.Rest.ApiGenerator.Contracts) | net8.0| Shared contracts and interfaces for the generated code. |
-|[Atc.Rest.ApiGenerator.Framework.Mvc](src/Atc.Rest.ApiGenerator.Framework.Mvc) | net8.0| Provides support for generating ASP.NET MVC / Controller based REST API server implementations. |
-|[Atc.Rest.ApiGenerator.Framework.Minimal](src/Atc.Rest.ApiGenerator.Framework.Minimal) | net8.0| Provides support for generating MinimalAPI based REST server implementations. |
-|[Atc.Rest.ApiGenerator.Client.CSharp](src/Atc.Rest.ApiGenerator.Client.CSharp) | net8.0| Generates C# client code for interacting with the generated REST APIs. |
-|[Atc.Rest.ApiGenerator.Framework](src/Atc.Rest.ApiGenerator.Framework) | net8.0| Shared framework components and utilities for the API generator projects. |
-|[Atc.Rest.ApiGenerator.OpenApi](src/Atc.Rest.ApiGenerator.OpenApi) | net8.0| Handles OpenAPI specification parsing and manipulation for the API generator. |
-|[Atc.Rest.ApiGenerator.Nuget](src/Atc.Rest.ApiGenerator.Nuget) | net8.0| Manages NuGet packages required by the generated code and frameworks. |
-|[Atc.CodeGeneration.CSharp](src/Atc.CodeGeneration.CSharp) | net8.0| Provides utilities and functionalities for generating C# code. |
-
+|[Atc.Rest.ApiGenerator.CodingRules](src/Atc.Rest.ApiGenerator.CodingRules) | net8.0| Create/update atc coding rules for the generated code | |
+|[Atc.Rest.ApiGenerator.Contracts](src/Atc.Rest.ApiGenerator.Contracts) | net8.0| Shared contracts and interfaces for the generated code. | |
+|[Atc.Rest.ApiGenerator.Framework.Mvc](src/Atc.Rest.ApiGenerator.Framework.Mvc) | net8.0| Provides support for generating ASP.NET MVC / Controller based REST API server implementations. | |
+|[Atc.Rest.ApiGenerator.Framework.Minimal](src/Atc.Rest.ApiGenerator.Framework.Minimal) | net8.0| Provides support for generating MinimalAPI based REST server implementations. | |
+|[Atc.Rest.ApiGenerator.Client.CSharp](src/Atc.Rest.ApiGenerator.Client.CSharp) | net8.0| Generates C# client code for interacting with the generated REST APIs. | |
+|[Atc.Rest.ApiGenerator.Framework](src/Atc.Rest.ApiGenerator.Framework) | net8.0| Shared framework components and utilities for the API generator projects. | |
+|[Atc.Rest.ApiGenerator.OpenApi](src/Atc.Rest.ApiGenerator.OpenApi) | net8.0| Handles OpenAPI specification parsing and manipulation for the API generator. | |
+|[Atc.Rest.ApiGenerator.Nuget](src/Atc.Rest.ApiGenerator.Nuget) | net8.0| Manages NuGet packages required by the generated code and frameworks. | |
+|[Atc.CodeGeneration.CSharp](src/Atc.CodeGeneration.CSharp) | net8.0| Provides utilities and functionalities for generating C# code. | |
 
 ## Project dependency graph
 
@@ -463,8 +492,259 @@ components:
   securitySchemes: {}
 ```
 
+## OpenApi Snippets
+
+### List of items
+
+```yaml
+# Example with List of items
+/users:
+    get:
+      operationId: getUsers
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+IEnumerable<User>
+```
+
+### List of items with a custom PaginationResult
+
+```yaml
+ # Example with List of items with a custom PaginationResult
+/users:
+    get:
+      operationId: getUsers
+      responses:
+        '200':
+          description: success
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: '#/components/schemas/PaginatedResult'
+                  - type: object
+                    properties:
+                      results:
+                        type: array
+                        items:
+                            $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+PaginationResult<User>
+```
+
+### List of items with a built-in Pagination
+
+```yaml
+# Example with List of items with a built-in Pagination
+/users:
+    get:
+      operationId: getUsers
+      responses:
+        '200':
+          description: success
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: '#/components/schemas/Pagination'
+                  - $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+Pagination<User>
+```
+
+### AsyncEnumerable of items
+
+```yaml
+# Example with AsyncEnumerable of items
+/users:
+    get:
+      operationId: getUsers
+      x-return-async-enumerable: true
+      responses:
+        '200':
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+IAsyncEnumerable<User>
+```
+
+### AsyncEnumerable of items with a custom PaginationResult
+
+```yaml
+# Example with AsyncEnumerable of items with a custom PaginationResult
+/users:
+    get:
+      operationId: getUsers
+      x-return-async-enumerable: true
+      responses:
+        '200':
+          description: success
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: '#/components/schemas/PaginatedResult'
+                  - type: object
+                    properties:
+                      results:
+                        type: array
+                        items:
+                            $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+IAsyncEnumerable<PaginationResult<User>>
+```
+
+### AsyncEnumerable of items with a built-in Pagination
+
+```yaml
+# Example with AsyncEnumerable of items with a built-in Pagination
+# Note: The build-in Pagination can be found in namespace Atc.Rest.Results
+/users:
+    get:
+      operationId: getUsers
+      x-return-async-enumerable: true
+      responses:
+        '200':
+          description: success
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: '#/components/schemas/Pagination'
+                  - $ref: '#/components/schemas/User'
+```
+
+```csharp
+// Output for result type
+IAsyncEnumerable<Pagination<User>>
+```
+
+### Custom PaginationResult with query parameters
+
+```yaml
+ # Example with custom PaginationResult and use of query parameters
+paths:
+  /users:
+    get:
+      operationId: getUsers
+      parameters:
+        - $ref: '#/components/parameters/pageSize'
+        - $ref: '#/components/parameters/continuationToken'
+        - $ref: '#/components/parameters/queryString'
+      responses:
+        '200':
+          description: success
+          content:
+            application/json:
+              schema:
+                allOf:
+                  - $ref: '#/components/schemas/PaginationResult'
+                  - type: object
+                    properties:
+                      results:
+                        type: array
+                        items:
+                          $ref: '#/components/schemas/User'
+components:
+  schemas:
+    PaginationResult:
+      type: object
+      title: PaginationResult
+      description: An item result subset of a data query.
+      properties:
+        pageSize:
+          type: integer
+        continuationToken:
+          type: string
+          nullable: true
+          description: Token to indicate next result set.
+        items:
+          type: array
+          items: {}
+  parameters:
+    pageSize:
+      name: pageSize
+      in: query
+      required: true
+      schema:
+        type: integer
+        default: 10
+    continuationToken:
+      name: continuationToken
+      in: query
+      required: false
+      schema:
+        type: string
+        nullable: true
+    queryString:
+      name: queryString
+      in: query
+      required: true
+      schema:
+        type: string
+```
+
+```csharp
+// Output for generated parameter class in Minimal-Api
+public record GetUsersParameters(
+    [property: FromQuery] string? ContinuationToken,
+    [property: FromQuery, Required] string QueryString,
+    [property: FromQuery, Required] int PageSize = 10);
+
+
+// Output for generated result class in Minimal-Api
+public class GetUsersResult
+{
+    private GetUsersResult(IResult result)
+    {
+        Result = result;
+    }
+
+    public IResult Result { get; }
+
+    /// <summary>
+    /// 200 - Ok response.
+    /// </summary>
+    public static GetUsersResult Ok(PaginationResult<User> result)
+        => new(TypedResults.Ok(result));
+
+    /// <summary>
+    /// Performs an implicit conversion from GetUsersResult to IResult.
+    /// </summary>
+    public static IResult ToIResult(GetUsersResult result)
+        => result.Result;
+}
+```
+
 ## How to contribute
 
 [Contribution Guidelines](https://atc-net.github.io/introduction/about-atc#how-to-contribute)
 
-[Coding Guidelines](https://atc-net.github.io/introduction/about-atc#coding-guidelines)
+[Coding Guidelines](https://atc-net.github.io/introduction/about-atc#coding-guidelines)

src/Atc.CodeGeneration.CSharp/Atc.CodeGeneration.CSharp.csproj

@@ -6,8 +6,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Atc" Version="2.0.500" />
-    <PackageReference Include="Atc.CodeDocumentation" Version="2.0.500" />
+    <PackageReference Include="Atc" Version="2.0.513" />
+    <PackageReference Include="Atc.CodeDocumentation" Version="2.0.513" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.10.0" />
   </ItemGroup>
 

src/Atc.Rest.ApiGenerator.CLI/Atc.Rest.ApiGenerator.CLI.csproj

@@ -13,8 +13,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Atc" Version="2.0.500" />
-    <PackageReference Include="Atc.Console.Spectre" Version="2.0.500" />
+    <PackageReference Include="Atc" Version="2.0.513" />
+    <PackageReference Include="Atc.Console.Spectre" Version="2.0.513" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
   </ItemGroup>
 

src/Atc.Rest.ApiGenerator.Client.CSharp/Atc.Rest.ApiGenerator.Client.CSharp.csproj

@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
-    <PackageReference Include="Microsoft.OpenApi" Version="1.6.15" />
+    <PackageReference Include="Microsoft.OpenApi" Version="1.6.17" />
   </ItemGroup>
 
   <ItemGroup>