Async
Run nested tasks in parallel, then settle with all, any, or all-settled.
Type
utl.async Block Utility
Folder
basic/utilityChannels
Any
Pipe
Value
Scope
Any
Async starts several nested bodies at once, waits according to Strategy, then continues. Tasks, Resolve, Reject, and Finally are new callback scopes. Connect each one to a Lambda block, the same way as a loop Callback.
A Return inside a task returns that task’s result, not the whole workflow.
Configure
| Setting | Description |
|---|---|
| Strategy | All — wait until every task succeeds; fail if any task fails. Any — succeed when the first task succeeds; fail only if every task fails. All settled — wait for every task and collect both successes and failures |
Handles
| Handle | Role |
|---|---|
| In (target) | Incoming connection |
| Out (source) | Continues on the main path after settle |
| Tasks | New callback scope — one nested body per connected task. Connect to Lambda |
| Resolve | New callback scope when settle succeeds |
| Reject | New callback scope when settle fails |
| Finally | New callback scope that always runs after settle |
Inside each Tasks body, args holds that task’s arguments. End the body with Return so Async can collect a value.
Pipe schema
The next block on the main Out reads this on the data pipe (pipe.value). The value is an object:
| Key | Type | Description |
|---|---|---|
result | any | Settled payload (shape depends on Strategy and what the bodies return) |
Use case
- Fan out several API calls, then continue when All succeed.
- Race two lookups with Any.
- Always log or notify in Finally, including after Reject.