Upload an invoice PDF and check its processing status with bimetrics

by Kermin · 1 views · created 2026-09-28 · Invoice Processing

What this workflow does

This workflow has 12 nodes and runs manually, when you click “Execute workflow”. It uses only n8n's built-in nodes.

How it runs

Trigger: Manually, when you click “Execute workflow”.

1. Set upload inputs (Edit Fields (Set)): sets 3 fields: filePath, fileName, sourceDocumentId
2. Validate upload inputs (Code): runs custom JavaScript code
3. Read invoice PDF (Read/Write Files from Disk): reads a file from disk
4. Check single file (Code): runs custom JavaScript code
5. Upload invoice PDF (HTTP Request): calls an HTTP API (POST)
6. Read upload response (Code): runs custom JavaScript code
7. Read processing status (HTTP Request): calls an HTTP API (GET)
8. Interpret processing status (Code): runs custom JavaScript code
9. Poll again? (If): checks a condition and branches into true / false
10. Wait: pauses before continuing

…plus 1 more step. See the full node list below.

Before you upgrade to n8n 3.0

Nodes used (7)

• Manual Triggern8n-nodes-base.manualTrigger
• Edit Fields (Set)n8n-nodes-base.set
• Coden8n-nodes-base.code
• Read/Write Files from Diskn8n-nodes-base.readWriteFile
• HTTP Requestn8n-nodes-base.httpRequest
• Ifn8n-nodes-base.if
• Waitn8n-nodes-base.wait

From the author

Quick overview Upload one existing invoice PDF from self-hosted n8n to bimetrics, then check its processing status. The workflow returns the document ID, outcome and next step so your team can review the invoice in bimetrics. How it works 1. Starts when you…

View the original on n8n.io → Check your own copy