xoauth2

XOAuth2 token generation with node.js

Installation

npm install xoauth2

Usage

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

Use xoauth2.createXOAuth2Generator(options) to initialize Token Generator

Possible options values:

user (Required) User e-mail address
accessUrl (Optional) Endpoint for token generation (defaults to https://accounts.google.com/o/oauth2/token)
clientId (Required) Client ID value
clientSecret (Required) Client secret value
refreshToken (Required) Refresh token for an user
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 yahoo requires Authorization: Basic Base64(clientId:clientSecret)
customParams (Optional) custom payload to send on getToken request yahoo requires redirect_uri to be specified

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

Methods

Request an access token

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.

Request for generating a new access token

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

Update access token values

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

Events

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
});

Example

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);
});