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use msgraph_rs::client::GraphClient;
use msgraph_rs::resources::users::methods::*;
fn main() -> Result<(), Box<dyn std::error::Error>> {
// These are your Microsoft Azure app credentials.
// Replace the values with your actual client ID, client secret, and tenant ID.
let client_id = ""; // Client ID from Azure AD app
let client_secret = ""; // Client secret from Azure AD app
let tenant_id = ""; // Tenant ID from your Azure AD instance
// Initialize the `GraphClient` which allows you to interact with the Microsoft Graph API.
// The `GraphClient::new` method takes four parameters:
// 1. `client_id` - Your Azure AD app client ID.
// 2. `client_secret` - Your Azure AD app client secret.
// 3. `tenant_id` - Your Azure AD tenant ID.
// 4. `false` - This flag determines whether to use the beta version of the Microsoft Graph API.
// Set this to `true` if you want to use the beta API. Here, we use the stable v1.0 API.
let client = GraphClient::new(client_id, client_secret, tenant_id, false)?;
// The user ID (or UPN - User Principal Name) of the sender.
let user_id = "<sender_user_principal_name>"; // e.g., "user@example.com"
// Define the email body. This is where you structure the content of the email to be sent.
let mail_body = serde_json::json!({
"message": {
"subject": "<email_subject>", // Subject of the email
"body": {
"contentType": "Text", // Type of the email content (Text or HTML)
"content": "<email_content>" // The actual content of the email message
},
"toRecipients": [
{
"emailAddress": {
"address": "<recipient_email>" // Recipient's email address
}
}
]
},
"saveToSentItems": "true" // Whether to save the sent email in the sender's Sent Items folder
});
// Call the `send_mail` function to send the email using the Microsoft Graph API.
// The function takes in the `GraphClient`, the sender's user ID, and the email body (JSON).
// If the email is sent successfully, no error will be thrown, and the function will complete.
send_mail(&client, user_id, mail_body)?;
// Print a confirmation message to the console if the email is sent successfully.
println!("Email sent successfully");
// Return `Ok(())` indicating the program completed successfully.
Ok(())
}