topic Re: grant_type not supported for REST POST in Connectivity & Data Prep

grant_type not supported for REST POST

mr_vince — Tue, 21 Dec 2021 14:01:50 GMT

Hi there!

I'm working with Qlik Sense on connecting a Learning Management System with Qlik to retrieve learner data. So far, so good. But the connection is OAuth token based, which requires me to create and send a new token every time.

I found out how to, theoretically, POST my credentials for obtaining a new token and later use the token for my GET requests in creating different connections.

So I set up a new connection, added my request URL, set the method to POST, added my request body and set the content-type of the header to application/x-www-form-urlencoded

Unfortunately, after adding all my credentials and needed information to request body of the POST request, it shows me

"HTTP protocol error 400 (Bad Request): {"error":"unsupported_grant_type","error_description":"Grant type not supported"}"

all the time.

I tried sending the same request via Postman and got the wished for outcome, the Token. But I'm almost losing my mind as I can't figure out what else I need to set up or what I'm missing here. I tried out different formats in sending the body as well, but got "grant_type not specified" before.

This is my structure of the body request:

This is the header I'm sending:

I very much appreciate some help 🙂

Re: grant_type not supported for REST POST

viliam_vacula — Wed, 19 Oct 2022 09:29:28 GMT

Hello,

any solution to this? We are facing EXACTLY the same problem.

Thanks.

Re: grant_type not supported for REST POST

kp_varian — Thu, 03 Nov 2022 06:48:18 GMT

Hello,

Can you share the solution on this?

Much appreciated.

Thanks

Re: grant_type not supported for REST POST

mr_vince — Thu, 03 Nov 2022 16:57:55 GMT

Unfortunately there was no way in making this happen in the Qlik connector. I ended up writing a python script with the credentials that is creating the token and saving the token on a given location as CSV. The python script runs every hour via an external service and I just pick up the token from the CSV and use it as a variable in my Qlik script

Re: grant_type not supported for REST POST

Brian_Robertson — Wed, 22 Nov 2023 22:24:07 GMT

I was faced with the same challenge, got it to work with & as a separator.

Try this:

grant_type=password&username=APIXXXXXXX&password=12345&client_ID=customerAPI