Publish a new message.

Publish a new Spredfast Messages for the target Initiative. Note: For multiple images the cURL should looks like this (notice that content.images is an array and must contain the same number of elements as files being uploaded):

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Path Params
int64
required
int64
required
string
required
Body Params
string
required
file
required
Response

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Response
Choose an example:
application/json