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public static async Task Run(DurableOrchestrationContext ctx)
{
try
{
var x = await ctx.CallFunctionAsync("F1");
var y = await ctx.CallFunctionAsync("F2", x);
var z = await ctx.CallFunctionAsync("F3", y);
return await ctx.CallFunctionAsync("F4", z);
}
catch (Exception)
{
// error handling/compensation goes here
}
}
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public static async Task Run(DurableOrchestrationContext ctx)
{
var parallelTasks = new List>();
// get a list of N work items to process in parallel
object[] workBatch = await ctx.CallFunctionAsync("F1");
for (int i = 0; i < workBatch.Length; i++)
{
Task task = ctx.CallFunctionAsync("F2", workBatch[i]);
parallelTasks.Add(task);
}
await Task.WhenAll(parallelTasks);
// aggregate all N outputs and send result to F3
int sum = parallelTasks.Sum(t => t.Result);
await ctx.CallFunctionAsync("F3", sum);
}
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public static async Task Run(
HttpRequestMessage req,
DurableOrchestrationClient starter,
string functionName,
TraceWriter log)
{
// Function name comes from the request URL.
// Function input comes from the request content.
dynamic eventData = await req.Content.ReadAsAsync();
string instanceId = await starter.StartNewAsync(functionName, eventData);
log.Info($"Started orchestration with ID = '{instanceId}'.");
return starter.CreateCheckStatusResponse(req, instanceId);
}
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public static async Task Run(DurableOrchestrationContext ctx)
{
int counterState = ctx.GetInput();
string operation = await ctx.WaitForExternalEvent("operation");
if (operation == "incr")
{
counterState++;
}
else if (operation == "decr")
{
counterState--;
}
ctx.ContinueAsNew(counterState);
}