How to call another function within an Azure function

Question

Hi I need to call one function in another function in azure function app using c#. please help

Mohammad Hussain · Answer

// Function1.cs using System.Net.Http; using Microsoft.Azure.WebJobs; using Microsoft.Azure.WebJobs.Extensions.Http; using Microsoft.AspNetCore.Http; public static class Function1 { [FunctionName("Function1")] public static async Task Run( [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req) { // Call Function2 using an HTTP request using (var client = new HttpClient()) { var function2Url = "https://your-function-app-url/api/Function2"; var response = await client.GetAsync(function2Url); } // Other logic for Function1 return new OkResult(); } } // Function2.cs using Microsoft.Azure.WebJobs; using Microsoft.Azure.WebJobs.Extensions.Http; using Microsoft.AspNetCore.Http; public static class Function2 { [FunctionName("Function2")] public static async Task Run( [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req) { // Logic for Function2 return new OkResult(); } }

Tahir Ansari · Answer

using Microsoft.Azure.WebJobs; using Microsoft.Extensions.Logging; public static class MyFunctions { [FunctionName("FunctionA")] public static async Task RunFunctionA( [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req, ExecutionContext context, ILogger log) { // Your logic for FunctionA // Call FunctionB await RunFunctionB(req, context, log); // Continue with FunctionA logic or return a response return new OkResult(); } [FunctionName("FunctionB")] public static async Task RunFunctionB( HttpRequest req, ExecutionContext context, ILogger log) { // Your logic for FunctionB } }

Cr Bhargavi · Answer

In Azure Function Apps using C#, you can call one function from another function within the same Function App. You can achieve this by using either a direct method call or by triggering the second function as an HTTP request.Example of calling direct function public static class MyFunctions { [FunctionName("Function1")] public static void RunFunction1([TimerTrigger("0 */5 * * * *")] TimerInfo myTimer, ILogger log) { // Function1 logic here // Call Function2 Function2(); } public static void Function2() { // Function2 logic here } } Function1 is a TimerTrigger function that gets triggered every 5 minutes. Inside Function1 , we call Function2 directly.

How to call another function within an Azure function

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Answers (3)