Intuit OAuth2.0 NodeJS Library

The OAuth2 Nodejs Client library is meant to work with Intuit's OAuth2.0 and OpenID Connect implementations which conforms to the specifications.

Table of Contents

• Intuit OAuth2.0 NodeJS Library
  • Table of Contents
• Requirements
• Installation
  • Using NodeJS
    • Options :
• Usage
  • Authorization Code Flow
    • Step 1
    • Scopes :
    • Step 2
• Sample
  • Helpers
    • Is AccessToken Valid
    • Refresh access_token
    • Refresh access_token by passing the refresh_token explicitly
    • Revoke access_token
    • Getter / Setter for Token
      • Retrieve the Token :
      • Set the Token :
    • Migrate OAuth1.0 Tokens to OAuth2.0
    • Validate ID Token
    • Make API call
    • Auth-Response
    • Error Logging
  • FAQ
  • Contributing
    • Steps
  • Changelog
  • License

Requirements

The Node.js client library is tested against the Node >= 7.0.0

To use in node 6, please use [email protected]. Older node versions are unsupported.

Installation

Follow the instructions below to use the library :

Using NodeJS

1. Install the NPM package:

   npm install intuit-oauth --save

2. Require the Library:

   const OAuthClient = require('intuit-oauth');
   
   const oauthClient = new OAuthClient({
       clientId: '<Enter your clientId>',
       clientSecret: '<Enter your clientSecret>',
       environment: 'sandbox' || 'production',
       redirectUri: '<Enter your callback URL>'
   });

Options

• clientId - clientID for your app. Required

• clientSecret - clientSecret fpor your app. Required

• environment - environment for the client. Required

  • sandbox - for authorizing in sandbox.
  • production - for authorizing in production.

• redirectUri - redirectUri on your app to get the authorizationCode from Intuit Servers. Required

• logging - by default, logging is disabled i.e false. To enable providetrue.

Usage

We assume that you have a basic understanding about OAuth2.0. If not please read API Documentation for clear understanding

Authorization Code Flow

The Authorization Code flow is made up of two parts :

Step 1. Redirect user to oauthClient.authorizeUri(options).
Step 2. Parse response uri and get access-token using the function oauthClient.createToken(req.url) which returns a Promise.

Step 1

// Instance of client
const oauthClient = new OAuthClient({
    clientId: '<Enter your clientId>',
    clientSecret: '<Enter your clientSecret>',
    environment: 'sandbox',
    redirectUri: '<http://localhost:8000/callback>'
});

// AuthorizationUri
const authUri = oauthClient.authorizeUri({scope:[OAuthClient.scopes.Accounting,OAuthClient.scopes.OpenId],state:'testState'});  // can be an array of multiple scopes ex : {scope:[OAuthClient.scopes.Accounting,OAuthClient.scopes.OpenId]}


// Redirect the authUri 
res.redirect(authUri);

Scopes

The available scopes include :

• com.intuit.quickbooks.accounting - for accounting scope include OAuthClient.scopes.Accounting
• com.intuit.quickbooks.payment - for payment scope include OAuthClient.scopes.Payment

OpenID Scopes :

• openid - for openID assertion include OAuthClient.scopes.OpenId
• profile - for profile assertion include OAuthClient.scopes.Profile
• email - for email assertion include OAuthClient.scopes.Email
• phone - for phone assertion include OAuthClient.scopes.Phone
• address - for address assertion include OAuthClient.scopes.Address

Step 2

// Parse the redirect URL for authCode and exchange them for tokens
const parseRedirect = req.url;

// Exchange the auth code retrieved from the **req.url** on the redirectUri
oauthClient.createToken(parseRedirect)
    .then(function(authResponse) {
        console.log('The Token is  '+ JSON.stringify(authResponse.getJson()));
    })
    .catch(function(e) {
        console.error("The error message is :"+e.originalMessage);
        console.error(e.intuit_tid);
    });

Sample

For more clarity, we suggest you take a look at the sample application below :
sample

Helpers

Is AccessToken Valid

You can check if the access_token associated with the oauthClient is valid ( not expired ) or not using the helper method.

if(oauthClient.isAccessTokenValid()) {
    console.log("The access_token is valid");
} 

if(!oauthClient.isAccessTokenValid()){
    
    oauthClient.refresh()
        .then(function(authResponse) {
            console.log('Tokens refreshed : ' + JSON.stringify(authResponse.json()));
        })
        .catch(function(e) {
            console.error("The error message is :"+e.originalMessage);
            console.error(e.intuit_tid);
        });
    
}

** Note: If the access_token is not valid, you can call the client's refresh() method to refresh the tokens for you as shown below

Refresh access_token

Access tokens are valid for 3600 seconds (one hour), after which time you need to get a fresh one using the latest refresh_token returned to you from the previous request. When you request a fresh access_token, always use the refresh token returned in the most recent token_endpoint response. Your previous refresh tokens expire 24 hours after you receive a new one.

    oauthClient.refresh()
        .then(function(authResponse) {
            console.log('Tokens refreshed : ' + JSON.stringify(authResponse.getJson()));
        })
        .catch(function(e) {
            console.error("The error message is :"+e.originalMessage);
            console.error(e.intuit_tid);
        });

Refresh access_token by passing the refresh_token explicitly

You can call the below helper method to refresh tokens by explictly passing the refresh_token.
**Note : refresh_token should be of the type string

    oauthClient.refreshUsingToken('<Enter the refresh token>')
        .then(function(authResponse) {
            console.log('Tokens refreshed : ' + JSON.stringify(authResponse.getJson()));
        })
        .catch(function(e) {
            console.error("The error message is :"+e.originalMessage);
            console.error(e.intuit_tid);
        });

Revoke access_token

When you no longer need the access_token, you could use the below helper method to revoke the tokens.

oauthClient.revoke()
        .then(function(authResponse) {
            console.log('Tokens revoked : ' + JSON.stringify(authResponse.getJson()));
        })
        .catch(function(e) {
            console.error("The error message is :"+e.originalMessage);
            console.error(e.intuit_tid);
        });

Alternatively you can also pass access_token or refresh_token to this helper method using the params object: refer to - Getter / Setter for Token section to know how to retrieve the token object

oauthClient.revoke(params)
        .then(function(authResponse) {
            console.log('Tokens revoked : ' + JSON.stringify(authResponse.getJson()));
        })
        .catch(function(e) {
            console.error("The error message is :"+e.originalMessage);
            console.error(e.intuit_tid);
        });

** Note ** : params is the Token JSON object as shown below : ( If you do not pass the params then the token object of the client would be considered.)

{
    "token_type": "bearer",
    "expires_in": 3600,
    "refresh_token":"<refresh_token>",
    "x_refresh_token_expires_in":15552000,
    "access_token":"<access_token>",
    "createdAt": "(Optional Default = Date.now()) <Milliseconds> from the unix epoch"
    
} 

** Note ** :

Getter / Setter for Token

You can call the below methods to set and get the tokens using the oauthClient instance:

Retrieve the Token :

// To get the tokens 
let authToken = oauthClient.getToken().getToken();

`OR`

let authToken = oauthClient.token.getToken();

Set the Token :

// To Set the retrieved tokens explicitly using Token Object but the same instance
oauthClient.setToken(authToken);        


OR 

// To set the retrieved tokens using a new client instance    
const oauthClient = new OAuthClient({
    clientId: '<Enter your clientId>',
    clientSecret: '<Enter your clientSecret>',
    environment: 'sandbox',
    redirectUri: '<http://localhost:8000/callback>',
    token: authToken
});

The authToken parameters are as follows:

{
    token_type: '<String>',
    access_token: '<String>',
    expires_in: '<Int> Seconds',
    refresh_token: '<String>',
    x_refresh_token_expires_in: '<Int>  Seconds',
    id_token: "(Optional Default = '') <String>",
    createdAt: '(Optional Default = Date.now()) <Milliseconds> from the unix epoch'
}

Note :
The OAuth Client library converts the accessToken and refreshToken expiry time to TimeStamp. If you are setting a stored token, please pass in the createdAt for accurate experiations.

oauthClient.setToken(authToken);

Migrate OAuth1.0 Tokens to OAuth2.0

You can call the below method to migrate the bearer / refresh tokens from OAuth1.0 to OAuth2.0. You

// Fill in the params object ( argument to the migrate function )

let params = {
    oauth_consumer_key : '<Enter oauth1ConsumerKey>',
    oauth_consumer_secret : '<Enter oauth1ConsumerSecret>',
    oauth_signature_method : 'HMAC-SHA1',
    oauth_timestamp : Math.round(new Date().getTime()/1000),
    oauth_nonce : 'nonce',
    oauth_version : '1.0',
    access_token : '<Enter OAuth1.0 access_token>',
    access_secret : '<Enter OAuth1.0 access_secret>',
    scope : [OAuthClient.scopes.Accounting]
}

oauthClient.migrate(params)
    .then(function(response){
        console.log('The response is '+ JSON.stringify(response));
    })
    .catch(function(e) {
        console.log('The error is '+e.message);
    });

Validate ID Token

You can validate the ID token obtained from Intuit Authorization Server as shown below :

 oauthClient.validateIdToken()
        .then(function(response){
            console.log('Is my ID token validated  : ' + response);
        })
        .catch(function(e) {
            console.log('The error is '+ JSON.stringify(e));
        });

        // Is my ID token validated : true

The client validates the ID Token and returns boolean true if validates successfully else it would throw an exception.

Make API Call

You can make API call using the token generated from the client as shown below :

// Body sample from API explorer examples
const body = {
  TrackQtyOnHand: true,
  Name: "Garden Supplies",
  QtyOnHand: 10,
  InvStartDate: "2015-01-01",
  Type: "Inventory",
  IncomeAccountRef: {
    name: "Sales of Product Income",
    value: "79"
  },
  AssetAccountRef: {
    name: "Inventory Asset",
    value: "81"
  },
  ExpenseAccountRef: {
    name: "Cost of Goods Sold",
    value: "80"
  }
};

  oauthClient.makeApiCall({
    url: 'https://sandbox-quickbooks.api.intuit.com/v3/company/1234/item',
    method: 'POST',
    headers: {
      'Content-Type': 'application/json'
    },
    body: JSON.stringify(body)
  }).then(function(response){
              console.log('The API response is  : ' + response);
          })
          .catch(function(e) {
              console.log('The error is '+ JSON.stringify(e));
          });

The client validates the ID Token and returns boolean true if validates successfully else it would throw an exception.

Auth-Response

The response provided by the client is a wrapped response of the below items which is what we call authResponse, lets see how it looks like:

    1. response             // response from `HTTP Client` used by library
    2. token                // instance of `Token` Object    
    3. body                 // res.body in `text`  
    4. json                 // res.body in `JSON`
    5. intuit_tid           // `intuit-tid` from response headers

A sample AuthResponse object would look similar to :

{  
      "token":{  
         "realmId":"<realmId>",
         "token_type":"bearer",
         "access_token":"<access_token>",
         "refresh_token":"<refresh_token>",
         "expires_in":3600,
         "x_refresh_token_expires_in":8726400,
         "id_token":"<id_token>",
         "latency":60000
      },
      "response":{  
         "url":"https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer",
         "headers":{  
            "content-type":"application/json;charset=UTF-8",
            "content-length":"61",
            "connection":"close",
            "server":"nginx",
            "strict-transport-security":"max-age=15552000",
            "intuit_tid":"1234-1234-1234-123",
            "cache-control":"no-cache, no-store",
            "pragma":"no-cache"
         },
         "body":"{\"id_token\":\"<id_token>\",\"expires_in\":3600,\"token_type\":\"bearer\",\"x_refresh_token_expires_in\":8726400,\"refresh_token\":\"<refresh_token>\",\"access_token\":\"<access_token>\"}",
         "status":200,
         "statusText":"OK"
      },
      "body":"{\"id_token\":\"<id_token>\",\"expires_in\":3600,\"token_type\":\"bearer\",\"x_refresh_token_expires_in\":8726400,\"refresh_token\":\"<refresh_token>\",\"access_token\":\"<access_token>\"}",
      "json":{
        "access_token": "<access_token>",
        "refresh_token": "<refresh_token>",
        "token_type": "bearer",
        "expires_in": "3600",
        "x_refresh_token_expires_in": "8726400",
        "id_token": "<id_token>"
      },
      "intuit_tid":"4245c696-3710-1548-d1e0-d85918e22ebe"
}

You can use the below helper methods to make full use of the Auth Response Object :

oauthClient.createToken(parseRedirect)
    .then(function(authResponse) {
        console.log('The Token in JSON is  '+ JSON.stringify(authResponse.getJson()));
        let status = authResponse.status();
        let body = authResponse.text();
        let jsonResponse = authResponse.getJson();
        let intuit_tid = authResponse.get_intuit_tid();
    });

Error Logging

By default the logging is disabled i.e set to false. However, to enable logging, pass logging=true when you create the oauthClient instance :

const oauthClient = new OAuthClient({
    clientId: '<Enter your clientId>',
    clientSecret: '<Enter your clientSecret>',
    environment: 'sandbox',
    redirectUri: '<http://localhost:8000/callback>',
    logging: true
});

The logs would be captured under the directory /logs/oAuthClient-log.log

Whenever there is an error, the library throws an exception and you can use the below helper methods to retrieve more information :

oauthClient.createToken(parseRedirect)
        .catch(function(error) {
            console.log(error);
        });


/**
* This is how the Error Object Looks : 
{  
   "originalMessage":"Response has an Error",
   "error":"invalid_grant",
   "error_description":"Token invalid",
   "intuit_tid":"4245c696-3710-1548-d1e0-d85918e22ebe"
}
*/

FAQ

You can refer to our FAQ if you have any questions.

Contributing

• You are welcome to send a PR to develop branch.
• The master branch will always point to the latest published version.
• The develop branch will contain the latest development/testing changes.

Steps

• Fork and clone the repository (develop branch).
• Run npm install for dependencies.
• Run npm test to execute all specs.

Changelog

See the changelog here

License

Intuit oauth-jsclient is licensed under the Apache License, Version 2.0