Uploading through curl

Exporting on the command line using the tool 'curl' helped me understand the format which shrine requires and could be useful if you want to script uploads of files to your rails backend.

Send picture

$ curl -X POST --form "file=@t-bird.jpg" http://localhost:9000/upload
{"id":"4b4d42e77b4fa7ecddbd93cd07845cc2.jpg","storage":"cache","metadata":{"filename":"t-bird.jpg","size":1478512,"mime_type":"image/jpeg"}}

NOTE: when we send the picture we use 'file' instead of 'image'

Send text form (optional)

$ curl -X POST -d "asset_item[name]=curl" http://localhost:9000/asset_items.json

Convert output to JSON

{id:"7276dc618cdd23bf3f5a9243d3c59399.jpg",storage:"cache",metadata:{filename:"t-bird.jpg",size:1478512,mime_type:"image/jpeg"}}.to_json

Result

"{\"id\":\"7276dc618cdd23bf3f5a9243d3c59399.jpg\",\"storage\":\"cache\",\"metadata\":{\"filename\":\"t-bird.jpg\",\"size\":1478512,\"mime_type\":\"image/jpeg\"}}"

POST text with the image data

$ curl -X POST -d "asset_item[name]=curl" -d 'asset_item[image]="{\"id\":\"7276dc618cdd23bf3f5a9243d3c59399.jpg\",\"storage\":\"cache\",\"metadata\":{\"filename\":\"t-bird.jpg\",\"size\":1478512,\"mime_type\":\"image/jpeg\"}}"' http://localhost:9000/asset_items.json