Struggling to turn a curl command with file upload to node red flow

[Steve-Mcl]

Have you searched the forum? It has been covered many times.

This answer is a good example...

Posting PDF-files multipart/form-data solution

The help sidebar for the HTTP Request node tells you how to do a file upload. File Upload To perform a file upload, msg.headers["content-type"] should be set to multipart/form-data and the msg.payload passed to the node must be an object with the following structure: { "KEY": { "value": FILE_CONTENTS, "options": { "filename": "FILENAME" } } } The values of KEY , FILE_CONTENTS and FILENAME should be set to the appropriate values.