React Native

Outlook -- List Attachments for a Specific Message

See more Outlook Examples

Demonstrates how to list the attachments for a particular email message.

Note: This example requires Chilkat v9.5.0.67 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

React Native

import { Http, JsonObject, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  let success = false;

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

  const http = new Http();

  // 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.authToken = 'MICROSOFT_GRAPH_ACCESS_TOKEN';

  const sbResponse = new StringBuilder();

  // 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.clearUrlVars();
  http.setUrlVar('userPrincipalName', 'chilkatsoft@outlook.com');

  // Assume we already have a message ID from previously listing the messages in a folder
  const messageId = 'AAMkADYzZWE3YmZmLWU0YzgtNGNkZC04MGE1LWFiYTFlNTRlY2QwYQBGAAAAAAAu7cUXL5YOTrdsUIw7-v8FBwBUcG0qWqkmQYqWLHQataQxAACnwqJUAABUcG0qWqkmQYqWLHQataQxAACnwrnOAAA=';
  http.setUrlVar('message_id', messageId);

  // Send the request to list the messages.
  success = true;
  try {
    await http.quickGetSbAsync('https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/messages/{$message_id}/attachments', sbResponse);
  } catch {
    success = false;
  }
  if ((!success) && (http.lastStatus === 0)) {
    console.log(http.lastErrorText);
    return;
  }

  const json = new JsonObject();
  json.loadSb(sbResponse);
  json.emitCompact = false;

  console.log(`Status code = ${http.lastStatus}`);
  if (http.lastStatus !== 200) {
    console.log(json.emit());
    console.log('Failed.');
  }

  sbResponse.clear();
  json.emitSb(sbResponse);
  sbResponse.writeFile('qa_output/attachments.txt', 'utf-8', false);

  console.log('OK');
}