Below is the list of parameters allowed as the upload parameters of an unsigned upload:
- upload_preset (Mandatory).
- callback.
- public_id.
- folder.
- tags.
- context.
- face_coordinates (image only).
- custom_coordinates (image only).
Additionally, although the public_id
parameter can be specified, the overwrite
parameter is always set to 'false' for unsigned uploads to prevent overwriting existing files.
Few more functionalities are available via the upload-preset (use original filename, control backup policy, perform moderation, etc.).
Note that unsigned upload parameters cannot contradict the upload-preset settings.
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