how to get the access token and refresh token new with the help of refresh token of office 364 using nodejs

To get a new access token and refresh token using the refresh token of Office 365 in Node.js, you can use the following steps:

1. Install the @azure/msal-node package using npm:

   npm install @azure/msal-node
   

2. Import the required modules and create a new instance of ConfidentialClientApplication:

   const { ConfidentialClientApplication } = require('@azure/msal-node');
   
   const config = {
       auth: {
           clientId: 'your_client_id',
           clientSecret: 'your_client_secret',
           authority: 'https://login.microsoftonline.com/common',
       }
   };
   
   const cca = new ConfidentialClientApplication(config);
   

   Replace your_client_id and your_client_secret with your actual credentials.

3. Call the acquireTokenByRefreshToken method of ConfidentialClientApplication to get a new access token and refresh token:

   const refreshToken = 'your_refresh_token';
   
   const tokenRequest = {
       refreshToken: refreshToken,
       scopes: ['https://graph.microsoft.com/.default']
   };
   
   cca.acquireTokenByRefreshToken(tokenRequest).then(response => {
       console.log('New access token:', response.accessToken);
       console.log('New refresh token:', response.refreshToken);
   }).catch(error => {
       console.log('Error:', error);
   });
   

   Replace your_refresh_token with your actual refresh token.

4. The acquireTokenByRefreshToken method returns a Promise that resolves to an object containing the new access token and refresh token. You can use them to make API calls to Office 365.

Note: Make sure to store the new refresh token securely, as it will be used to obtain new access tokens in the future.