Absent Member.
Absent Member.

Fileupload using Rest API


I am currently developing VU Gen script for Fileupload REST API. This functionality has no UI and we need to test API with large files up to 100 MB.

So, we used


    "Name=File", "Value=C:\\Users\\justLR\\Desktop\\testupload.jpg", "File=yes",
    LAST );


 While testing API manually using CURL command, we need to give user ID, business unit ID ( Amazon S3 bucket name, where file gets uploaded), Content DIsposition as attachment, content type as multiplat/form Data.

When we used, web_custom_request ..we are getting an error with boundary ID at multipart/form-data. But, after switching to web_submit_data..there is no error with boundary ID. But, we are getting an error while uploading file to S3 bucket. The error message in server log diplays as Error during upload: Unnecessary filed occurs. Logfie is attached to showcase the error

I would like to know if there is any issed in web_submit_data.

Regarding failed web_custom_request is


"BodyFilePath=C:\\Users\\justLR\\Desktop\\testupload.jpg", "File=yes"",


Logfile for web_submit)data is as follows

Action.c(130): \xCA\xB1\xC8\\\x8D\xF9\x0BE\xBD\x1B\x07w \xE0b]D\xF6:g\x98R\x92\xF7V\xBE\xF7E\xA5\xFBj\xFA
Action.c(130): \xD9\xBF\xD4\xF5\xFF\x00\xDA?\xC7\x8DD\xC0\x0F\x02iZ\xAF\x8D\xE0\xE8<S\xE2\x07\x93\xC4\xB7
Action.c(130): 7z_\x85\xF4\xED\x1E\xE2\xD6\xC9\xB7CinZ\xD2\x08\xB7+\x85\x9Af\r\x9C\x87\x84\xF6\x15\xF3\xFC
Action.c(130): \xF7d\x9F\x97\x8A\xD7\xF1\xEF\xC4}[\xE2F\xA7ou\xAB\xDD\x9B\xC9\xAC\xAC\xAD\xF4\xE8H\x89#\t
Action.c(130): \x04\x11,Q T\x00aQTg\x19=I$\x93X\x126=\x7F>\xB5\x94\x9D\xDD\xCF\x170\xC5{Y\xB6\xBC\x96\xBB
Action.c(130): \xE8;\xCD\xC7'\xE9\xC6h\xA8\xB3\xF4\xEB\xDE\x8A\x93\xCB\xE7g\xFF\xD9\r\n
Action.c(130): -----------------------------7d0256b064e--\r\n
Action.c(130): t=26014ms: 541-byte response headers for "https://abcxyz.com/upload/x1/objects" (RelFrameId=1, Internal ID=12)
Action.c(130): HTTP/1.1 200 OK\r\n
Action.c(130): Cache-Control: private\r\n
Action.c(130): Pragma: private\r\n
Action.c(130): X-Powered-By: Express\r\n
Action.c(130): Content-Type: text/html; charset=utf-8\r\n
Action.c(130): Content-Length: 78\r\n
Action.c(130): ETag: W/"4e-EyOMl7AHFyABCDSEFiMDcNkU"\r\n
Action.c(130): Vary: Accept-Encoding\r\n
Action.c(130): Keep-Alive: timeout=10, max=100\r\n
Action.c(130): Connection: Keep-Alive\r\n
Action.c(130): \r\n
Action.c(130): t=26016ms: 78-byte response body for "https://abcxyz.com/upload/x1/objects" (RelFrameId=1, Internal ID=12)
Action.c(130): Status Code: ERR401 and Status Description: Error in uploading object into S3
Action.c(130): HANDLE_CLOSING" on behalf of "URL="https://abcxyz.com/upload/x1/objects" [MsgId: MMSG-27397]
Action.c(130): web_submit_data("Upload") was successful, 72 body bytes, 541 header bytes [MsgId: MMSG-26386]

1 Reply
Honored Contributor.
Honored Contributor.

Re: Fileupload using Rest API

Hi @JustLR

Check here for a working solution: /t5/Performance-Center-Practitioners/Upload-Vugen-script-REST-API-responses-with-bad-request/m-p/6879456#M20091

Took me some time to figure it out.

With kind regards,


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