That you are looking for is Task.WhenAll . You should create as many tasks as the multiple locations from which you want to fetch your data and then feed them in this method.
To expand on @Christos's accepted answer:
Task.WhenAll appears to be about as close as you will get for a drop-in replacement for Promise.all . I actually found it to be closer than I initially thought. Here's an example using a JavaScript Promise.all
implementation that you may want to replicate in C#:
const [ resolvedPromiseOne, resolvedPromiseTwo ] = await Promise.all([ taskOne, taskTwo ]);
In C# you can do something very similar with Task.WhenAll
(assuming they return the same types).
var taskList = new[]
{
SomeTask(),
AnotherTask()
};
var completedTasks = await Task.WhenAll(taskList);
// then access them like you would any array
var someTask = completedTasks[0];
var anotherTask = completedTasks[1];
// or just iterate over the array
foreach (var task in completedTasks)
{
doSomething(task);
}
This assumes they're both in async
methods / functions.
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