(PowerShell) HTTP multipart/form-data Upload

Demonstrates how to upload files to an HTTP server using a multipart/form-data POST.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$http = New-Object Chilkat.Http

$req = New-Object Chilkat.HttpRequest
$req.HttpVerb = "POST"
$req.ContentType = "multipart/form-data"
$req.Path = "rcvFormDataUpload.aspx"

# Send an "Expect: 100-continue" header in the request.
# This causes the HTTP server to end a 100-continue response
# immediately after receiving the HTTP header.  The client
# (Chilkat) will receive this intermediate response, and if
# it's not an error response, it knows that the HTTP server will
# accept the data that is forthcoming.
# The alternative is to get an error response after trying to upload
# the entire contents of the files.
$req.AddHeader("Expect","100-continue")

# Call AddFileForUpload2 for each file to be uploaded in the HTTP multipart/form-data POST
# To allow Chilkat to determine the content-type automatically based on file-extension,
# call AddFileForUpload instead.

# The 1st arg is the filename passed in the HTTP request.
# The 2nd arg is the path in the local filesytem.
# The file is not loaded into memory.  It is streamed directly from the file
# when the HTTP POST is sent.
$success = $req.AddFileForUpload2("starfish.jpg","c:/qa_data/starfish.jpg","image/jpg")
if ($success -ne $true) {
    $($req.LastErrorText)
    exit
}

$success = $req.AddFileForUpload("something.pdf","c:/qa_data/something.pdf")
if ($success -ne $true) {
    $($req.LastErrorText)
    exit
}

# Its also possible to add a file from a string:
$success = $req.AddStringForUpload("test.xml","test.xml","<abc>This is the test.xml content</abc>","utf-8")
# We'll assume success since no files are involved..

# This sends the HTTP request (with 3 files being uploaded) to
# http://www.mywebserver123abc.com/rcvFormDataUpload.aspx

$resp = $http.SynchronousRequest("www.mywebserver123abc.com",80,$false,$req)
if ($http.LastMethodSuccess -ne $true) {
    $($http.LastErrorText)
}
else {
    $("HTTP response status: " + $resp.StatusCode)
    # See the online reference documentation for 
    # other information that can be obtained from the response object.

}

# To send using SSL/TLS, do this instead.
# This sends to https://www.mywebserver123abc.com/rcvFormDataUpload.aspx
$resp = $http.SynchronousRequest("www.mywebserver123abc.com",443,$true,$req)
if ($http.LastMethodSuccess -ne $true) {
    $($http.LastErrorText)
}
else {
    $("HTTP response status: " + $resp.StatusCode)
    # See the online reference documentation for 
    # other information that can be obtained from the response object.

}