B4X

Add Parameters to Multipart Form-Data POSTs

Parameters (name=value) can be added to multipart/form-data POSTs (such as for file uploads) by using the AddParam method. This example sends the following HTTP POST

POST /something HTTP/1.1
Content-Type: multipart/form-data; boundary=------------010201080703010401070605
Host: domain
Content-Length: 560

--------------010201080703010401070605
Content-Disposition: form-data; name="name"

Joe
--------------010201080703010401070605
Content-Disposition: form-data; name="age"

25
--------------010201080703010401070605
Content-Disposition: form-data; name="fileA"; filename="fileA.txt"
Content-Type: text/plain

This is the contents of file A
--------------010201080703010401070605
Content-Disposition: form-data; name="fileB"; filename="fileB.txt"
Content-Type: text/plain

This is the contents of file B
--------------010201080703010401070605--

B4X

Dim req As ChilkatHttpRequest
req.Initialize

req.HttpVerb = "POST"
req.Path = "/something"
req.ContentType = "multipart/form-data"

req.AddParam("name", "Joe")
req.AddParam("age", "25")

req.AddStringForUpload("fileA", "fileA.txt", "This is the contents of file A", "utf-8")
req.AddStringForUpload("fileB", "fileB.txt", "This is the contents of file B", "utf-8")

Log(req.GenerateRequestText)