Automation library · Content

Process multiple requests in FIFO with OpenAI Batch API

Started by a clock, and works across Postgres and Supabase. 16 steps, 1 branch: a working afternoon to understand properly.

Medium

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16 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Logic 5Service 9

The steps in the order they run, from what starts it.

  1. 1Start (mock data)Manual triggerStarts it
  2. 2Cron Job (5 mins)Schedule triggerStarts it
  3. 3Convert to batch requests in .jsonlCodeLogic
  4. 4Get the earliest uncompleted batchPostgresService
  5. 5Call Files APIHttp RequestService
  6. 6Call Batch API to retrieve batch objectHttp RequestService
  7. 7Call Batch APIHttp RequestService
  8. 8If status = completedIfLogic
  9. 9Create a row in batch tableSupabaseService
  10. 10Download .jsonl resultHttp RequestService
  11. 11Update statusSupabaseService
  12. 12Submission doneNo OpLogic
  13. 13.jsonl to base64Extract From FileService
  14. 14Decode base64CodeLogic
  15. 15Update status and resultSupabaseService
  16. 16Retrieval doneNo OpLogic

How it's built

Starts on
A clock
Steps
16, with 1 branch
Size
Medium: a working afternoon
Connects to
Postgres, Supabase
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Postgres and Supabase accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 16 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 16 steps before you point it at anything that matters.