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[FEAT] Add per-item options arrays for run() and runNoWait() in TypeScript SDK #3398
Description
Is your feature request related to a problem? Please describe.
When triggering workflows in bulk (array input), we often need different run options per item (mainly different additionalMetadata : taskId or topic or anything else that's helpful for dashboard filtering). The SDK should support this consistently for both run() and runNoWait() so bulk invocation remains ergonomic and predictable.
Describe the solution you'd like
Support per-item options arrays for both methods when input is an array:
run(input: I[], options: RunOpts[]): Promise<O[]>runNoWait(input: I[], options: RunOpts[]): Promise<WorkflowRunRef<O>[]>
Expected behavior:
- Map each
options[i]toinput[i]. - Preserve existing shared-options behavior (
options: RunOpts) for array input. - Throw a clear validation error if
options.length !== input.length. - Keep current single-input behavior unchanged.
Describe alternatives you've considered
- Using shared options for all items: insufficient when each item needs different metadata.
- Looping and calling
run()/runNoWait()one-by-one: adds boilerplate and can reduce batching ergonomics. - Packing execution options into input payload: mixes execution control with business input data.
Additional context
This is primarily an API consistency and developer-experience improvement for bulk runs.
Having the same per-item options model in both run() and runNoWait() reduces confusion and avoids requiring users to switch call patterns just to support heterogeneous run options.
I have a PR running locally that illustrates these changes. Let me know if you'd like me to open it to preview what the changes would look like.