Rust
Outlook -- List Attachments for a Specific Message

Demonstrates how to list the attachments for a particular email message.
Note: This example requires Chilkat v9.5.0.67 or greater.
Chilkat Rust Downloads

Rust
let mut success = false;

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

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

// Use your previously obtained access token here:
// See the following examples for getting an access token:
//    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
//    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
//    Refresh Access Token (Azure AD v2.0 Endpoint).
//    Refresh Access Token (Azure AD Endpoint).

http.set_auth_token("MICROSOFT_GRAPH_ACCESS_TOKEN");

let sb_response = chilkat::StringBuilder::new();

// Sends:  GET /users/{user_id | userPrincipalName}/messages/{message_id}/attachments
// Note: It is also possible to use the literal string "me" for the current logged-on user.
// For example: GET /me/messages/{message_id}/attachments

http.clear_url_vars();
let _ = http.set_url_var("userPrincipalName", "chilkatsoft@outlook.com");

// Assume we already have a message ID from previously listing the messages in a folder
let message_id = "AAMkADYzZWE3YmZmLWU0YzgtNGNkZC04MGE1LWFiYTFlNTRlY2QwYQBGAAAAAAAu7cUXL5YOTrdsUIw7-v8FBwBUcG0qWqkmQYqWLHQataQxAACnwqJUAABUcG0qWqkmQYqWLHQataQxAACnwrnOAAA=".to_string();
let _ = http.set_url_var("message_id", &message_id);

// Send the request to list the messages.
success = http.quick_get_sb("https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/messages/{$message_id}/attachments", &sb_response).is_ok();
if (!success) && (http.last_status() == 0) {
    println!("{}", http.last_error_text());
    return;
}

let json = chilkat::JsonObject::new();
let _ = json.load_sb(&sb_response);
json.set_emit_compact(false);

println!("Status code = {}", http.last_status());
if http.last_status() != 200 {
    println!("{}", json.emit().unwrap_or_default());
    println!("Failed.");
}

sb_response.clear();
let _ = json.emit_sb(&sb_response);
let _ = sb_response.write_file("qa_output/attachments.txt", "utf-8", false);

println!("OK");