Sending an image file with POST request

[MrAta]

I'm trying to send an image as part of my POST request, but I'm getting 400 status code from the server-side. I tried to copy the content of the image into a file and then using contents_from_file attribute, but it's not working.

Here is my request specification:

<request>
  <http url="/" method="POST" contents_from_file="imgdata">
         <http_header name="Content-Type" value="multipart/form-data"/>
  </http>
</request>

The imgdata file content is like this: file=<the rest is the content of image file>

Is there any other way that I can send an image using a PSOT request?

[ZekeLu]

I know that the reply is too late. Hopefully, the reply will help others visit this issue.

The most easy way to compose a request is use the proxy recorder.

Here is the request generated by the proxy recorder:

<request>
    <http url='/api/Files/Upload' version='1.1' contents_from_file='~/.tsung/tsung_recorder20200811-1343-1.bin'
          content_type='multipart/form-data; boundary=----WebKitFormBoundaryXmxIzOC6w2Vonz83' method='POST'>
        <http_header name='Accept' value='*/*'/>
        <http_header name='Accept-Encoding' value='gzip, deflate'/>
        <http_header name='Accept-Language' value='en-US,en;q=0.9,zh-CN;q=0.8,zh-TW;q=0.7,zh;q=0.6'/>
        <http_header name='X-Requested-With' value='XMLHttpRequest'/>
    </http>
</request>

And the tsung_recorder20200811-1343-1.bin file:

$ head -n 13 ~/.tsung/tsung_recorder20200811-1343-1.bin
------WebKitFormBoundaryXmxIzOC6w2Vonz83
Content-Disposition: form-data; name="targetPath"

result
------WebKitFormBoundaryXmxIzOC6w2Vonz83
Content-Disposition: form-data; name="thumbnailSize"

300
------WebKitFormBoundaryXmxIzOC6w2Vonz83
Content-Disposition: form-data; name="file"; filename="blob"
Content-Type: image/png

�PNG

The form data targetPath and thumbnailSize are used by my application. I just leave it here without modification. You can see that contents_from_file points to the file that contains the body of the HTTP request.