Passing --form data as part of ROBOT Framework - robotframework

Question

I am trying to pass the below API request in ROBOT framework:
curl --request POST --url <API End Point> --form 'mldata={"id": “idname”, "author": “author name, "title": “title name, "description": “description details“, "version": "0.0.4", "image": “/path/to/image”, "icon": "base64 encoded image"};type=application/json' --header "Authorization: <Bearer Token>”
Written the same in ROBOT framework [Version: 3.2.2], but getting error: "status=400, reason=Bad Request body={"message":"Request is not a multipart request!"}"strong text
It seems I am not passing the --form data in a right way. Request for help in passing the form data [--form 'mldata={"id": “idname”, "author": “author name, "title": “title name, "description": “description details“, "version": "0.0.4", "image": “/path/to/image”, "icon": "base64 encoded image"};type=application/json'] in robot framework.
How should I pass in the right way?
Onboard ML From External Repo
[Arguments] ${token}=default
Create Session session ${host}
${data}= Create Dictionary id=${id} author=${author} title=${title} description=${description} version=${version} image=${repo_path}
${form_data}= Evaluate {'mldata=': ${data}}
${header}= Create Dictionary Authorization=${token}
${response}= Post Request session /v1/ml data=${form_data} headers=${header}
Should Be Equal As Strings ${response.status_code} 200

Answer 1

I tried the below code and it worked. There are two modifications I had done from the original post.
No dictionary is created, instead all the items are directly evaluated
Instead of 'data', passing 'files' in post request, as for multi-form request, files is required.
Onboard ML From External Repo
[Arguments] ${token}=default
Create Session mxesession ${host}
# ${data}= Create Dictionary id=${id} author=${author} title=${title} description=${description} version=${version} image=${repo_path} "icon": ${icon_image}
${form_data}= Evaluate {'mldata': (None,'{"id": "${id}", "author": "${author}", "title": "${title}", "description": "${description}", "version": "${version}", "image": "${repo_path}", "icon": "${icon_image}"}')}
# ${form_data}= Evaluate {'mldata': "'"+${data}+"'"}
# ${form_data}= Evaluate {'mldata': str(${data})}
# ${form_data}= Evaluate {'mldata': (None,str(${data}))}
# ${form_data}= Evaluate {'mldata': (None,${data})}
${header}= Create Dictionary Authorization=${token}
${response}= Post Request session /v1/ml files=${form_data} headers=${header}
Should Be Equal As Strings ${response.status_code} 200
I am not sure is it the right way for passing multi-form data, but it worked in my case. If anyone has a better workable idea, please comment. It will be helpful for me to refine this code to a much better shape.
Updated the answer as per #PDHide comments.
Onboard ML From External Repo
[Arguments] ${token}=default
Create Session mxesession ${host}
${data}= Create Dictionary id=${id} author=${author} title=${title} description=${description} version=${version} image=${repo_path} "icon": ${icon_image}
${form_data}= Evaluate {'mldata=': str(${data}).replace("'",'"')}
${header}= Create Dictionary Authorization=${token}
${response}= Post Request session /v1/ml files=${form_data} headers=${header}
Should Be Equal As Strings ${response.status_code} 200
P.S. Thanks #PDHide for your support.

Answer 2

It should be send as a string , and also you don't need equal
${form_data}= Evaluate {'mldata=': str(${data}).replace("'",'"')}
As you observed , we have to pass this as
files=${form_data}

Answer 3

This was what ended working for me. For anyone else with this issue
${data}= Evaluate {'username': (None, 'myusername'), 'password': (None, 'mypwd')}
${response}= Post Request ${Session_id} ${AUTH_TOKEN_URL_PATH} files=${data}