Invoking Azure function using C#

Question

I have written a simple Azure function that gets a name and returns a greeting message (as I am trying to get familiar with Azure functions...) I want to trigger the functions in a simple Console Application that I wrote in C# using Visual Studio. However, I can't get this to work. Everytime I run my code the console opens and immediately closes. I added Console.ReadLine() to try and avoid that but the same thing keeps on happening. Note that the function is working correctly when using the URL in the browser. The code I have written so far is:

static void Main(string[] args)
{
    string nameToSend = "Testo";
    string baseURL = "*URLGOESHERE";
    string urlToInvoke = string.Format("{0}&name={1}", baseURL, nameToSend);
    Run(urlToInvoke);
}

public static async void Run(string i_URL)
{
    HttpClient client = new HttpClient();
    HttpResponseMessage response = await client.GetAsync(i_URL);
    string responseString = await response.Content.ReadAsStringAsync();
    Console.WriteLine(responseString);
    Console.ReadLine();
}

Help please! Thanks!

Have you used the debugger to step through? How about adding some error handling? — TheSoftwareJedi, Jun 04 '18 at 18:27
`Run` returns void, so main doesn't wait for it to finish and the program ends. — Clint, Jun 04 '18 at 18:27

score 3 · Accepted Answer · answered Jun 04 '18 at 18:43

3

Replace your call of Run with Run(urlToInvoke).Wait();. You have to wait for task completion.

answered Jun 04 '18 at 18:43

Mikhail Shilkov

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It's not exactly what I needed to do, but the general concept of returning Task so the program waits is what solved the problem. Thanks. – Niv.R. Jun 04 '18 at 19:33

Invoking Azure function using C#

1 Answers1