InvokeOutputBinding.cs

// ------------------------------------------------------------
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
// ------------------------------------------------------------

namespace dotnet_isolated_azurefunction
{
    using System.IO;
    using System.Threading.Tasks;
    using Microsoft.Azure.Functions.Extensions.Dapr.Core;
    using Microsoft.Azure.Functions.Worker;
    using Microsoft.Azure.Functions.Worker.Extensions.Dapr;
    using Microsoft.Azure.Functions.Worker.Http;
    using Microsoft.Extensions.Logging;

    public static class InvokeOutputBinding
    {
        /// <summary>
        /// Sample to use a Dapr Invoke Output Binding to perform a Dapr Server Invocation operation hosted in another Darp'd app.
        /// Here this function acts like a proxy
        /// </summary>
        [Function("InvokeOutputBinding")]
        [DaprInvokeOutput(AppId = "{appId}", MethodName = "{methodName}", HttpVerb = "post")]
        public static async Task<InvokeMethodParameters> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = "invoke/{appId}/{methodName}")] HttpRequestData req, FunctionContext functionContext)
        {
            var log = functionContext.GetLogger("InvokeOutputBinding");
            log.LogInformation("C# HTTP trigger function processed a request.");

            string requestBody = await new StreamReader(req.Body).ReadToEndAsync();

            var outputContent = new InvokeMethodParameters
            {
                Body = requestBody
            };

            return outputContent;
        }
    }
}