Send URL-encoded form data with Perform an API call

To send URL-encoded form data with a standard Perform an API call Wrk Action, set Content-Type in Request headers to application/x-www-form-urlencoded. Enter the form fields as a JSON object in Request body; Wrk encodes the values before sending the request.

Request headers:

{"Content-Type": "application/x-www-form-urlencoded"}

Request body:

{
  "To": "+15555550100",
  "MessagingServiceSid": "MG00000000000000000000000000000000",
  "Body": "Wrk Test message"
}

The phone number and Messaging Service SID above are example placeholders. Wrk encodes special characters for the request: for example, + becomes %2B. Spaces may appear as + or %20, both valid in URL-encoded form data. Enter the body as JSON; do not paste an already encoded string such as To=%2B1555...&Body=....

This example is for requests without a file attached. File uploads use a different request format.