Extract from receipts: PostgreSQL
Runs on a schedule across PostgreSQL, Google Drive and Slack, parses the incoming file into rows, then branches on the check before anything is written. Built for contracts, around a "Download from Google Drive" step, in 23 documented nodes.
Extract from receipts with Google Drive and PostgreSQL 24/7. An original, ready-to-import n8n workflow built around the 'File Processing' pattern for legal & compliance. It runs on a schedule and orchestrates 23 nodes across PostgreSQL, Google Drive, Slack. It uses n8n's LangChain AI nodes (Agent/Chain + chat model). Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. Nothing slips through the cracks.
Key benefits
- ✓Keeps PostgreSQL and Google Drive in step for contracts, without anyone re-typing a row
- ✓Safe to re-run: records already in PostgreSQL or Google Drive are skipped, across all 23 nodes of this contracts build
- ✓A failed PostgreSQL or Google Drive call is retried rather than dropped, at any of the 23 nodes in this contracts build
- ✓Every contracts run leaves an audit row behind, alongside PostgreSQL
- ✓Fans the same result out to Slack in the same run, for contracts
Use cases
- →Teams keeping PostgreSQL and Google Drive aligned by hand for contracts
- →Contracts work where "Download from Google Drive" is still a manual step before PostgreSQL
- →Contracts work that only reaches PostgreSQL on a schedule, when someone remembers to start it
Integrations
Workflow preview (23 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (23 nodes)
A look at the node types this workflow uses. No purchase required — full parameters and credentials are yours after you buy.
From download to running in 3 steps
- 1Import. In n8n, open Workflows → menu → “Import from File” and pick the downloaded JSON.
- 2Connect. Add your own credentials on the app nodes - n8n highlights exactly which ones need them.
- 3Activate. Run it once to test, then toggle Active. The automation is live.
What you'll learn
Production levelProduction-grade: idempotency, dead-letter handling, and reconciliation included.
- •Downloading and parsing CSV, XLSX, or PDF into JSON items
- •Serializing processed items back out to a file
- •Quarantining malformed rows without failing the whole batch
Every node carries its own documentation on the canvas, plus notes explaining why the architecture was built this way, a credential setup guide, troubleshooting, and three practice exercises. Sample data comes pinned to the trigger, so you can hit Execute and watch data flow before connecting a single account.
Common questions
What exactly do I get?
The complete, ready-to-import n8n workflow as a JSON file, delivered instantly after payment. Import it into your own n8n (cloud or self-hosted), add your credentials, and it runs.
How do I import it into n8n?
In n8n, open Workflows, click the three-dot menu, choose “Import from File”, and select the downloaded JSON. Then connect your own app credentials on the highlighted nodes.
Do I need anything else for it to work?
You need your own n8n instance and accounts/credentials for the apps this workflow connects to (PostgreSQL, Google Drive, Slack, Google Sheets). No coding is required.
What if it doesn't work for me?
If the file is faulty, won't import, or isn't as described, contact us within 7 days and we'll fix it or refund you - see our refund policy.
Can I modify or resell it?
You can freely adapt and use it in your own or your clients' projects. Reselling or redistributing the template file itself is not permitted.
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