Hands-On Azure for Developers

Orchestration client

To get started with an orchestration, you need a host for it. In Durable Functions, that host is the orchestration client, which enables you to perform the following actions on an orchestration:

• Start it
• Terminate it
• Get its status
• Raise an event and pass it to an orchestration

The basic code for a client is pretty simple:

[FunctionName("Orchestration_Client")]public static async Task<string> Orchestration_Client(  [HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "start")] HttpRequestMessage input,  [OrchestrationClient] DurableOrchestrationClient starter){  return await starter.StartNewAsync("Orchestration", await input.Content.ReadAsStringAsync());}

As you can see from the preceding code, we started an orchestration ...