Transloadit template example - stores original file without colon in prefix

gistfile1.txt

/*
This template works for both image and non-image files. Image thumbnails are given respective step-name prefixes.
Original files are stored with the "original" prefix without the standard, annoying colon.
*/

{
  "steps": {
    "32x32": {
      "use": ":original",
      "robot": "/image/resize",
      "width": 32,
      "height": 32,
      "strip": true,
      "zoom": false,
      "colorspace": "RGB"
    },
    "64x64": {
      "use": ":original",
      "robot": "/image/resize",
      "width": 64,
      "height": 64,
      "strip": true,
      "zoom": false,
      "colorspace": "RGB"
    },
    "128x128": {
      "use": ":original",
      "robot": "/image/resize",
      "width": 128,
      "height": 128,
      "strip": true,
      "zoom": false,
      "colorspace": "RGB"
    },
    "256x256": {
      "use": ":original",
      "robot": "/image/resize",
      "width": 256,
      "height": 256,
      "strip": true,
      "zoom": false,
      "colorspace": "RGB"
    },
    "512x512": {
      "use": ":original",
      "robot": "/image/resize",
      "width": 512,
      "height": 512,
      "strip": true,
      "zoom": false,
      "colorspace": "RGB"
    },
    "original": {
      "use": ":original",
      "robot": "/s3/store"
    },
    "store": {
      "use": [
        "32x32",
        "64x64",
        "128x128",
        "256x256",
        "512x512",
        "original"
      ],
      "robot": "/s3/store",
      "key": "...",
      "secret": "...",
      "bucket": "...",
      "strip": true,
      "path": '${previous_step.name}/${file.url_name}'
    }
  }
}