Rust

Add Data to multipart/form-data Request

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Demonstrates how to add content (such as a JPG, PDF, XML, etc.) to multipart/form-data requests. Rust

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

let req = chilkat::HttpRequest::new();
req.set_http_verb("POST");
req.set_content_type("multipart/form-data");
req.set_path("/xyz/something");

req.add_param("param1", "value1");
req.add_param("param2", "value2");

// Add some small files to the request. (Small so we can see what the full request looks like without too much data..)
let bd = chilkat::BinData::new();
let _ = bd.load_file("qa_data/jpg/starfish20.jpg").is_ok();
let _ = req.add_bd_for_upload("starfish20", "starfish20.jpg", &bd, "image/jpeg");

let _ = bd.load_file("qa_data/pdf/helloWorld.pdf").is_ok();
let _ = req.add_bd_for_upload("helloWorld", "helloWorld.pdf", &bd, "application/pdf");

let _ = bd.load_file("qa_data/xml/tinyA.xml").is_ok();
let _ = req.add_bd_for_upload("tinyA", "tinyA.xml", &bd, "text/xml");

// This HTTP request contains binary data, so we cannot call GenerateRequestText
// to examine it as a string.  We can instead call GenerateRequestFile
// to write the request to a file and then examine using a hex editor,
// or an editor that is capable of handling null bytes and non-printable chars (perhaps by displaying "?" chars instead).
let _ = req.generate_request_file("qa_output/multipartFormDataRequest.bin");

println!("OK.");

// This is the HTTP multipart/form-data request built by the above code:

// POST /xyz/something HTTP/1.1
// Host: domain
// Content-Type: multipart/form-data; boundary=------------090708030009010000030901
// Content-Length: 2220
// 
// --------------090708030009010000030901
// Content-Disposition: form-data; name="param1"
// 
// value1
// --------------090708030009010000030901
// Content-Disposition: form-data; name="param2"
// 
// value2
// --------------090708030009010000030901
// Content-Disposition: form-data; name="starfish20"; filename="starfish20.jpg"
// Content-Type: image/jpeg
// 
// JPEG DATA HERE...
// --------------090708030009010000030901
// Content-Disposition: form-data; name="helloWorld"; filename="helloWorld.pdf"
// Content-Type: application/pdf
// 
// PDF DATA HERE...
// --------------090708030009010000030901
// Content-Disposition: form-data; name="tinyA"; filename="tinyA.xml"
// Content-Type: text/xml
// 
// XML DATA HERE...
// --------------090708030009010000030901--
//