"request_syntactically_incorrect" on Post API

knozawa

Hello,

I tried to use a Post API and received this error message in download tool:

DownloadData

{"errors":[{"code":0,"message":"request_syntactically_incorrect"}]}

DownloadHeaders

HTTP/1.1 400 Bad Request

In postman, I use Body (raw) and successfully run the post API.

In Alteryx, I've tried multiple different ways (Compose Query String/Body, Take Query String/Body from Field, and Use Following for Query String/Body) but none of them worked.

Basic

Payload

Does anyone know how to set up the download tool for post API?

Sincerely,

knozawa

JoeS

Hi @knozawa 

Thanks for sending the details through, I thought I'd put the answer back here in case anyone else comes up against the same issue.

What you had done was correct, the only part that was missing is that when you use the payload option "Use Following for Query String/Body" it sets Content-Type to "application/x-www-form-urlencoded"

What you need to do is add to the header "Content-Type" and then your API needed "application/json".

What also tripped me over is if you add to the header "content-type" AKA all lower case, it will actually end up sending "Content-Type" and "content-type" which then throws the error you were getting around incorrect syntax.

I'll PM you back the working workflow as well.