Rust Requires Chilkat v11.0.0+

Facebook Upload Photo from Local File

See more Facebook Examples

Uploads a new photo with a caption from a local file. Rust

// This example assumes Chilkat HTTP to have been previously unlocked.
// See Global Unlock Sample for sample code.

let http = chilkat::Http::new();

let req = chilkat::HttpRequest::new();
req.set_http_verb("POST");
req.set_content_type("multipart/form-data");
req.set_path("/v2.7/me/photos");

// Use the previously obtained access token.
// Note: The publish_actions scope is required to upload a photo.
req.add_header("Authorization", "Bearer FACEBOOK-ACCESS-TOKEN");

// 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.add_header("Expect", "100-continue");

// Set a photo caption.
req.add_param("caption", "Here are some penguins!");

// Additional parameters can be added to the request by 
// calling AddParam once per parameter.  
// See https://developers.facebook.com/docs/graph-api/reference/user/photos
// for more information about other optional parameters.

// Indicate the local file to be uploaded.
if req.add_file_for_upload("source", "qa_data/jpg/penguins2.jpg").is_err() {
    println!("{}", req.last_error_text());
    return;
}

// Upload the image file..
let resp = chilkat::HttpResponse::new();
if http.http_s_req("graph.facebook.com", 443, true, &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

// Examine the response body:
let response_json = resp.body_str();
println!("{}", response_json);

// The response contains JSON, such as this:
// {"id":"10210224963435862","post_id":"10224048320139890_10210224963435862"}