Describe the problem/error/question
Hi everyone,
I’m currently working on a workflow in n8n where I need to send an image captured via a form to Google Document AI for processing using an HTTP Request node.
However, when I test the HTTP Request node, I consistently receive the following error message:
Unable to sign without access token
I’m struggling to understand what I’m missing in terms of authentication or how to correctly set up the connection to Google Document AI within the HTTP Request node.
Has anyone else encountered this issue or successfully sent data to Google Document AI via an HTTP Request in n8n? If so, could you please share any insights or guidance on how to properly connect and authenticate?
Any help or suggestions would be greatly appreciated!
What is the error message (if any)?
Please share your workflow
Share the output returned by the last node
Unable to sign without access token
Information on your n8n setup
- n8n version:
1.88.0 (Self Hosted) - **Database (default: SQLite):Default
- n8n EXECUTIONS_PROCESS setting (default: own, main):
- **Running n8n via (Docker, npm, n8n cloud, desktop app):Docker
- **Operating system:Debian
