Sending Multi-part Outgoing Faxes Request

With multi part you can create an outgoing fax request and upload the document to fax (e.g.: a PDF file) at the same time.

Create a JSON file for the outgoing fax options

    "data": {
        "retries": 3,
        "from_name": "Fax Sender",
        "from_number": "{FROM_NUMBER}",
        "to_name": "Fax Recipient",
        "to_number": "{TO_NUMBER}",
        "fax_identity_number": "{ID_NUMBER}",
        "fax_identity_name": "Fax Header"

Execute the cURL request

curl -v -X PUT -i \
    -H 'X-Auth-Token: {AUTH_TOKEN}' \
    -H "Content-Type: multipart/mixed" \
    -F "content=@{FILE.json}; type=application/json" \
    -F "content=@{FILE.pdf}; type=application/pdf" \
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