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xoauth2

XOAuth2 token generation for accessing GMail SMTP and IMAP

xoauth2

XOAuth2 token generation with node.js

npm install xoauth2

xoauth2 generates XOAUTH2 login tokens from provided Client and User credentials.

Use xoauth2.createXOAuth2Generator(options) to initialize Token Generator

Possible options values:

See https://developers.google.com/identity/protocols/OAuth2WebServer#offline for generating the required credentials

For Google service account the option values are:

  • service (Required) Service account email.
  • user (Required) User e-mail address
  • scope (Required) OAuth2 scope.
  • privateKey (Required) Private key issued for the service account in PEM format, as a string.
  • serviceRequestTimeout (Optional) Expiration value to use in the token request in seconds. Maximum is 3600.
  • accessUrl (Optional) Endpoint for token generation (defaults to https://accounts.google.com/o/oauth2/token)
  • accessToken (Optional) initial access token. If not set, a new one will be generated
  • timeout (Optional) TTL in seconds
  • customHeaders (Optional) custom headers to send during token generation request
  • customParams (Optional) custom payload to send on getToken request

Use xoauth2obj.getToken(callback) to get an access token. If a cached token is found and it should not be expired yet, the cached value will be used.

Use xoauth2obj.generateToken(callback) to get an access token. Cache will not be used and a new token is generated.

Use xoauth2obj.updateToken(accessToken, timeout) to set the new value for the xoauth2 access token. This function emits 'token'

If a new token value has been set, 'token' event is emitted.

xoauth2obj.on("token", function(token){
    console.log("User: ", token.user); // e-mail address
    console.log("New access token: ", token.accessToken);
    console.log("New access token timeout: ", token.timeout); // TTL in seconds
});
var xoauth2 = require("xoauth2"),
    xoauth2gen;

xoauth2gen = xoauth2.createXOAuth2Generator({
    user: "user@gmail.com",
    clientId: "{Client ID}",
    clientSecret: "{Client Secret}",
    refreshToken: "{User Refresh Token}",
    customHeaders: {
      "HeaderName": "HeaderValue"
    },
    customPayload: {
      "payloadParamName": "payloadValue"
    }
});

// ... or for a Google service account
xoauth2gen = xoauth2.createXOAuth2Generator({
    user: "user@gmail.com",
    service: '{Service Email Address}',
    scope: 'https://mail.google.com/',
    privateKey: '{Private Key in PEM format}'
});

// SMTP/IMAP
xoauth2gen.getToken(function(err, token){
    if(err){
        return console.log(err);
    }
    console.log("AUTH XOAUTH2 " + token);
});

// HTTP
xoauth2gen.getToken(function(err, token, accessToken){
    if(err){
        return console.log(err);
    }
    console.log("Authorization: Bearer " + accessToken);
});

MIT