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(JavaScript) HTTPS multipart/form-data POST
Demonstrates how to send a multipart/form-data POST over HTTPS (using TLS).
var success = false;
// This example assumes the Chilkat HTTP API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// This example demonstrates how to send a multipart/form-data POST that
// looks like this:
// POST /cgi/XXX.pl HTTP/1.0
// Accept: text/html
// Connection: Keep-Alive
// User-Agent: XXX/8.0.15
// Content-type: multipart/form-data, boundary=XXXxyxy
// Content-Length: 682
//
// --XXXxyxy
// content-disposition: form-data; name="UploadAgent"
//
// InterfaceVersion1.5
// --XXXxyxy
// content-disposition: form-data; name="user"
//
// userValue
// --XXXxyxy
// content-disposition: form-data; name="password"
//
// passwordValue
// --XXXxyxy
// content-disposition: form-data; name="file"
//
// fileValue
// --XXXxyxy
// content-disposition: form-data; name="data_version"
//
// dataVersion
// --XXXxyxy
// content-disposition: form-data; name="content2"; filename="XXX"
//
// THE FILE CONTENT GOES HERE...
// --XXXxyxy--
//
// First, let's build the HTTP request object
var req = new CkHttpRequest();
req.HttpVerb = "POST";
req.Path = "/cgi/XXX.pl";
// The boundary string is automatically generated and added by Chilkat.
// The value for the boundary string doesn't matter. (As long as it's a unique string that doesn't occur elsewhere in the request.)
req.ContentType = "multipart/form-data";
// Adding the Connection: Keep-Alive is optional. It only makes sense if the intent is to send
// additional requests to the same domain (your-namespace-sb.accesscontrol.windows.net) within a reasonable time period.
req.AddHeader("Connection","Keep-Alive");
// --------------------------------------------------
// IMPORTANT: Never set the Content-Length header.
// Chilkat will automatically compute the correct Content-Length and will add it.
// --------------------------------------------------
// If a specific User-Agent header field is needed, it can be added by calling AddHeader.
req.AddHeader("User-Agent","XXX/8.0.15");
// The "Accept" header, if present, tells the server what Content-Type responses will be accepted.
// In this case, we're telling the server that we'll only accept "text/html" responses, and therefore
// the server SHOULD only send a text/html response. Technically, the Accept header is not required.
req.AddHeader("Accept","text/html");
// Add the params to the request. Given that the Content-Type is set to "multipart/form-data", when
// Chilkat composes the request, it will put each param in it's own MIME sub-part (i.e. in it's own
// part delimited by the boundary string).
req.AddParam("UploadAgent","InterfaceVersion1.5");
req.AddParam("user","userValue");
req.AddParam("password","passwordValue");
req.AddParam("file","fileValue");
req.AddParam("data_version","dataVersion");
// The last param is the contents of a file.
// If it's a file on disk, we can add it like this:
var pathToFileOnDisk = "c:/someDir/someFile.dat";
success = req.AddFileForUpload("content2",pathToFileOnDisk);
if (success == false) {
console.log(req.LastErrorText);
return;
}
// Alternatively, if the contents of the file are in memory, perhaps in a string
// variable, the file can be added like this instead.
var fileContents = "This is the content of the file being uploaded.";
success = req.AddStringForUpload("content2","XXX",fileContents,"utf-8");
// -----------------------------------------------------------
// IMPORTANT: To duplicate the HTTP request shown above, you'll want to choose
// either AddStringForUpload or AddFileForUpload, but not both. It's possible to upload
// any number of files by calling AddStringForUpload and/or AddFileForUpload any number
// of times, once per file to be uploaded. This of course assumes that the receiving
// end is programmed to receive multiple files..
// ------------------------------------------------------------
var http = new CkHttp();
// The request is ready... now send it using HTTPS (which is port 443 by default).
var resp = new CkHttpResponse();
success = http.HttpSReq("www.myserver.com",443,true,req,resp);
if (success == false) {
console.log(http.LastErrorText);
return;
}
console.log("HTTP response status: " + resp.StatusCode);
// In this case, the response would be HTML because our Accept header
// told the server to only return HTML. The HTML is available on the BodyStr
// property of the response object:
var htmlStr = resp.BodyStr;
console.log("Received:");
console.log(htmlStr);
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