Azure Timer Trigger Functions in Sequence

Question

I am using Multiple TimerTrigger Functions as below

[FunctionName("Fun1")]
public async Task RunAsync([TimerTrigger("%ScheduleExpression%")] TimerInfo myTimer, ILogger log)
{
      log.LogInformation($"Fun1 Timer trigger function executed at: {DateTime.Now}");
}

[FunctionName("Fun2")]
public async Task RunAsync([TimerTrigger("%ScheduleExpression%")] TimerInfo myTimer, ILogger log)
{
      log.LogInformation($"Fun2 Timer trigger function executed at: {DateTime.Now}");
}

Likewise, I have a total of 5 functions. I want to run these in a sequence one after another. Because each function will save some data into individual tables and every next function will use the data stored by the previous function.

Is there any way to achieve this?

Answer 1

I would suggest you use Azure Durable Functions with the Function chaining pattern and in this way, you can execute your functions sequentially. You trigger the durable function and then the chain will execute.

See documentation here: https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-overview?tabs=csharp#chaining