transform-describe-image-with-transloadit（使用 transloadit 变换描述图像）

Inputs

• Absolute path to a local input image
• Optional .json output path; default is the same path with .json

Prepare

Resolve credentials in this order:

• Shell environment variables
• The current working directory .env only
• ~/.transloadit/credentials

If your .env lives in a parent directory, export the variables into the shell first.

Run

Use the official Transloadit Node CLI directly.

Labels / object-style description:

npx -y @transloadit/node image describe \
  --input ./input.jpg \
  --fields labels \
  --output ./labels.json

WordPress-ready fields:

npx -y @transloadit/node image describe \
  --input ./input.jpg \
  --for wordpress \
  --output ./fields.json

Custom field selection:

npx -y @transloadit/node image describe \
  --input ./input.jpg \
  --fields altText,title,caption,description \
  --output ./fields.json

If you omit --output, the CLI writes the JSON file next to the input image using the same base name. After the command finishes, confirm the JSON file exists at the expected output path.

Output Shapes

--fields labels returns a JSON array of labels.

--for wordpress and authored --fields... return a JSON object with requested string fields, for example:

{
  "altText": "...",
  "title": "...",
  "caption": "...",
  "description": "..."
}

Notes

• Prefer --for wordpress when you want publishable CMS fields.
• Prefer --fields labels when you want recognizer-style tags instead of authored copy.
• --model only matters for authored fields, not for labels.
• Prefer ~/.transloadit/credentials as the default fallback when you want a reusable user-level setup.
• A current-directory .env still takes precedence, so avoid it when deterministic account selection matters.
• If credentials only exist in a repo-root .env, run the command from that directory or export the variables first.

Debug If It Fails

npx -y @transloadit/node assemblies get <assemblyIdOrUrl> -j