I am developing Cloudinary API for Erlang. I am implementing the authentication method described here:
As such, I only include the following parameters in my signature:
callback, eager, format, public_id, tags, timestamp, transformation, type
However, I receive the following error response (HTTP status code 401) when constructing a signed upload request:
"Invalid Signature a9687302e8568dbc8ca3794d4c9c493233ab74e2. String to sign - 'public_id=foo1×tamp=1414602730&unique_filename=false'."
According to documentation on manually signing a request, the unique_filename parameter is not a parameter that should be used in a signature calculation.
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