Azure function Isolated Process Model

Question

I am using Azure Function Isolated process model .Net 8.0 I want to use Swagger UI as a result I installed Microsoft.Azure.Functions.Worker.Extensions.OpenApi.Core.Attributes However tis does not work using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Attributes work Why is this am I missing something?

Answer 1

Hi @Buyani Mhlongo,

To Use Swagger in . Net 8 Isolated you have inject ConfigureOpenApi in Program.cs also as below:

using Microsoft.Azure.Functions.Worker.Extensions.OpenApi.Extensions;

using Microsoft.Extensions.Hosting;

var rith = new HostBuilder()

        .ConfigureServices((context, services) =>

        {

        })

        .ConfigureFunctionsWebApplication(app =>

        {

        })

        .ConfigureOpenApi()

        .Build();

rith.Run();

Now, in Function1.cs, one needs to declare all the function definitions as below:

using Microsoft.AspNetCore.Http;

using Microsoft.AspNetCore.Mvc;

using Microsoft.Azure.Functions.Worker;

using Microsoft.Extensions.Logging;

using Microsoft.OpenApi.Models;

using System.Net;

using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Attributes;

using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Enums;

using Newtonsoft.Json;

using System.Web.Helpers;

using System.Text.Json;

namespace FunctionApp4

{

    public class Function1

    {

        private readonly ILogger<Function1> _logger;

        public Function1(ILogger<Function1> logger)

        {

            _logger = logger;

        }

        [Function("Function1")]

        [OpenApiOperation(operationId: "Run", tags: new[] { "name" })]

        [OpenApiSecurity("function_key", SecuritySchemeType.ApiKey, Name = "code", In = OpenApiSecurityLocationType.Query)]

        [OpenApiParameter(name: "JSON", In = ParameterLocation.Query, Required = true, Type = typeof(Json), Description = "Hello Rithwk Bojja, The **JSON** parameter")]

        [OpenApiResponseWithBody(statusCode: HttpStatusCode.OK, contentType: "text/plain", bodyType: typeof(string), Description = "The OK response")]

        public async Task<IActionResult> RunAsync([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post")] HttpRequest req)

        {

            _logger.LogInformation("Hello Rithwik Bojja");            

            return new OkObjectResult("Hello");

        }

    }

}

Csproj:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>

    <TargetFramework>net8.0</TargetFramework>

    <AzureFunctionsVersion>v4</AzureFunctionsVersion>

    <OutputType>Exe</OutputType>

    <ImplicitUsings>enable</ImplicitUsings>

    <Nullable>enable</Nullable>

  </PropertyGroup>

  <ItemGroup>

    <FrameworkReference Include="Microsoft.AspNetCore.App" />

    <PackageReference Include="Microsoft.AspNet.WebPages" Version="3.3.0" />

    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="2.0.0" />

    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.2.0" />

    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="2.0.0" />

    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.OpenApi" Version="1.5.1" />

    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.0" />

    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.OpenApi.Core" Version="1.5.1" />

    <PackageReference Include="Microsoft.OpenApi" Version="1.6.23" />

    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />

  </ItemGroup>

  <ItemGroup>

    <None Update="host.json">

      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

    </None>

    <None Update="local.settings.json">

      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>

      <CopyToPublishDirectory>Never</CopyToPublishDirectory>

    </None>

  </ItemGroup>

  <ItemGroup>

    <Using Include="System.Threading.ExecutionContext" Alias="ExecutionContext" />

  </ItemGroup>

</Project>

local.settings.json:

{

    "IsEncrypted": false,

    "Values": {

        "AzureWebJobsStorage": "UseDevelopmentStorage=true",

        "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated"

    }

}

Output:

Hope this helps.

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