Ruby

Send a Staged Multipart REST Request

Demonstrates Rest.SendReqMultipart, which sends a multipart request using the parts configured on the object, then reads the response in separate steps.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

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Ruby

require 'chilkat'

success = false

rest = Chilkat::CkRest.new()
bTls = true
bAutoReconnect = true
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
if (success == false)
    print rest.lastErrorText() + "\n";
    exit
end

#  Configure one multipart part before sending.
rest.put_PartSelector("1")
rest.AddHeader("Content-Type","text/plain")
rest.AddHeader("Content-Disposition","form-data; name=\"field1\"")
success = rest.SetMultipartBodyString("value1")
if (success == false)
    print rest.lastErrorText() + "\n";
    exit
end

#  Send the multipart request using the configured parts.
success = rest.SendReqMultipart("POST","/api/upload")
if (success == false)
    print rest.lastErrorText() + "\n";
    exit
end

#  After sending, read the response status line and header fields.  The return value is the HTTP
#  status code, or -1 if no response was received.
statusCode = rest.ReadResponseHeader()
if (statusCode < 0)
    print rest.lastErrorText() + "\n";
    exit
end

print "Response status code: " + statusCode.to_s() + "\n";

#  Read the response body as text.
responseBody = rest.readRespBodyString()
if (rest.get_LastMethodSuccess() == false)
    print rest.lastErrorText() + "\n";
    exit
end

print responseBody + "\n";