Api request - form data body

i need your support please , i am trying to write test case for api request in a data-driven style as below details
data file is .csv
request body : form data where keys ( entity , content )
entity key is atext and content is a file
header contain user token
below postman screen shot

the error a post request body but i can’t figure out how to fix

Code snippet
*** Settings ***
Library RequestsLibrary
Library JSONLibrary
Library Collections
Library OperatingSystem
Library CSVLibrary
Library String
Library DateTime

Resource ./Environment.resource

*** Keywords ***
[Arguments] ${filePath}
Create Session APP_Login ${Serverurl}
${jsonBody}= Load Json From File ${EXECDIR}${filePath}
Set To Dictionary ${jsonBody} username=${Username} password=${Password} app=${Entity}
${response}= POST On Session APP_Login ${Login} json=${jsonBody}
# Log To Console ${response.content}
${token}= Set Variable ${response.json() [‘rs’]}
set Suite variable ${token}
${app-auth-header}= Create Dictionary app-auth-header=${token}
Create Session app_User ${Serverurl} headers=${app-auth-header}
##### assertions #####
Should Be Equal As Strings ${response.status_code} 200

################# Incoming ################
IN Entity
[Arguments] ${row}
${entity}= Create Dictionary docSubject=${row[0]} addMethod=1 docNotes=null docStatus=4 docDate=${row[1]} docType=null fileCode=null fileSerial=null fileId=null mainClassification=null subClassification=null ou=${row[2]} registryOU=${row[3]} securityLevel=1 priorityLevel=0 refDocNumber=${row[4]} mainSiteId=${row[5]} subSiteId=${row[6]} refDocDate=${row[7]} followupStatus=1 followupDate=null siteType=3
[Return] ${entity}

IN Content
[Arguments] ${row}
${content}= Create Dictionary content=${row[8]}
${files}= Create List content=${row[8]}
[Return] ${content}

Get File Name
[Arguments] ${file_path}
${path_components}= Split String ${file_path} /
${file_name}= Get From List ${path_components} -1
[Return] ${file_name}

Add and Archive
[Arguments] ${file_path}
${records}= Read Csv File To List ${EXECDIR}${file_path} delimiter=,
FOR ${row} IN @{records}
${entity}= IN Entity ${row}
Log To Console the entity body : ${entity}

    ${content}=   IN Content    ${row}
    Log To Console     the Content body : ${content}

    ${boundary}=    Generate Random String    length=10    chars=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
    ${headers}=  Create Dictionary  Content-Type=multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW

    ${data}=    Create Dictionary    entity=${entity}    content=${content}
    Log To Console     the request body : ${data}

    ${content_exists}=  Run Keyword And Return Status  Dictionary Should Contain Key  ${data}  content
    Set Variable If    ${content_exists}    ${data["content"]}    ${content}

    ${entity_exists}=  Run Keyword And Return Status  Dictionary Should Contain Key  ${data}  entity
    Set Variable If    ${entity_exists}    ${data["entity"]}    ${entity}
    Log To Console     the request body : ${data}
    run keyword if    ${content_exists}    Set Variable    ${data["content"]}    ${content}
    run keyword if    ${entity_exists}    Set Variable    ${data["entity"]}    ${entity}
    ${data}=        Evaluate    {'entity':(None,${entity}) ,'content': (None,${content})}
    Log To Console     the request body : ${data}

    ${response}=  POST On Session    app_User    ${endpoint}  headers=${headers}  data=${data}

    # ${docId}=    Set Variable    ${response.json()['rs']}
    # Log    Added incoming correspondence with doc ID ${docId}
    # ${archive_response}=    POST On Session    app_User    /url/${docId}/archive
    # Log    ID ${docId}

*** Test Cases ***

[Tags] Login
Login “jsonfilepath”

Add and Archive “csvfilepath”

after run all keyword passed but i have 500 error at post step

KEYWORD ${response} = RequestsLibrary . POST On Session app_User , ${endpoint}, headers=${headers}, data=${data}
Sends a POST request on a previously created HTTP Session.

Start / End / Elapsed: 20230423 15:08:17.809 / 20230423 15:08:18.272 / 00:00:00.463
15:08:18.159 INFO POST Request : url=full url
headers={‘User-Agent’: ‘python-requests/2.28.2’, ‘Accept-Encoding’: ‘gzip, deflate’, ‘Accept’: ‘/’, ‘Connection’: ‘keep-alive’, ‘app-auth-header’: ‘token’, ‘Content-Type’: ‘multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW’, ‘Content-Length’: ‘413’}

15:08:18.160 INFO POST Response : fullurl
status=500, reason=Internal Server Error
headers={‘Vary’: ‘Origin, Access-Control-Request-Method, Access-Control-Request-Headers’, ‘Content-Type’: ‘application/json’, ‘X-Content-Type-Options’: ‘nosniff’, ‘X-XSS-Protection’: ‘1; mode=block’, ‘Cache-Control’: ‘no-cache, no-store, max-age=0, must-revalidate’, ‘Pragma’: ‘no-cache’, ‘Expires’: ‘0’, ‘X-Frame-Options’: ‘DENY’, ‘Content-Language’: ‘en-US’, ‘Transfer-Encoding’: ‘chunked’, ‘Connection’: ‘Close’, ‘Date’: ‘Sun, 23 Apr 2023 12:08:16 GMT’}
body={“sc”:500,“ms”:“Required request parameter ‘entity’ for method parameter type String is not present”,“ec”:12000,“lm”:[“2023-04-23 15:08:17,926 INFO [WebContainer : 13] c.e.c.s.security.LoggingInterceptor.preHandle [31] - Starting Handling Request Number 5005400083053282480”,“2023-04-23 15:08:17,926 ERROR [WebContainer : 13] c.e.c.s.e.ExceptionControllerAdvice.exception [72] - Undefined Exception {}”,“org.springframework.web.bind.MissingServletRequestParameterException: Required request parameter ‘entity’ for method parameter type String is not present”

any help ?

The ${data} variable you create is not a dict, as can be seen from the log (INFO POST Request).

Due to reuse of variable names, I can’t really indicate where it might go off-track, but the Evaluate expression is suspect. Within RF scope, I’d suggest to use the keywords from the Collections library to manipulate lists or dicts.

still having the problem ,could you explain the anser if you knew ?