Post request returns 400 Bad Request in RobotFramework

Question

I've been using a RobotFramework for sending a POST request My code is the following :

*** Settings ***
Library  RequestsLibrary
Library  JSONLibrary
Library  Collections


*** Variables ***
${API_Base_Endpoint}    http://thetestingworldapi.com/




*** Test Cases ***
Post_Req_Test
    Create Session          AddData            ${API_Base_Endpoint}
    ${body}=                create dictionary   first_name=Tester1  middle_name=NAN  last_name=Tester2  date_of_birth=01/01/1999
    LOG TO CONSOLE          ${body}
    ${header}=              create dictionary   Content-Type=application/json
    ${response}=            post on session     AddData    api/studentsDetails     data=${body}  headers=${header}

But from some reason I'm getting a "HTTPError: 400 Client Error: Bad Request for url: http://thetestingworldapi.com/api/studentsDetails"

I've tried to send same request via Postman , and it works with no issues.

Any ideas what may go wrong ?

The body needs to be serialized to JSON, its essentially the same as this issue stackoverflow.com/questions/70142412/… — Matthew King
– Matthew King, Commented Feb 13, 2022 at 22:28
@MatthewKing Thank you ! it worked , I just wondering how no one performs serialization in every tutorial I saw. Thanks again — Igal
– Igal, Commented Feb 14, 2022 at 6:33
With the help of @MatthewKing I was referenced to this solution Worked for me — Igal
– Igal, Commented Feb 14, 2022 at 6:35
based on your comment, I did some digging and it seems that if you pass the body to json e.g. json=${body} instead of data=${body}, you won't need the serialization line I suggested — Matthew King
– Matthew King, Commented Feb 14, 2022 at 10:56

Igal · Accepted Answer · 2022-02-15 13:13:38Z

0

With the help of @MatthewKing I was referenced to this solution Worked for me

answered Feb 15, 2022 at 13:13

Igal

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