Navigating the entire Oauth2 Authentication Process with Vue.js Client and Express.js Server Leveraging Passport.js

I am struggling to comprehend how to effectively utilize the Bearer Access Token obtained from an OAuth2 authentication process.

In my situation, the client is Vue.js, the server is Express.js, and Passport.js serves as the middleware for authentication.

The setup of Passport and authentication process follows a standard procedure:

  • An OAuth2 Passport strategy is implemented (specifically Asana in my case).
  • There is a route on the server (/auth/asana) that triggers passport.authenticate.
  • Another route on the server (/auth/asana/cb) handles callbacks from Asana.
  • A success URL directs back to the client.

Here's the sequence of steps I take:

  1. User clicks "Authenticate" on the client/home page, triggering a redirect to server/auth/asana.
  2. server/auth/asana uses Passport.js to redirect to Asana for user authentication.
  3. server/auth/asana/cb receives the authenticated user data from Asana.
  4. server/auth/asana/cb redirects the user back to client/home.
  5. From client/home, I aim to start using the API to retrieve data.

Now, there are 3 questions that need addressing:

  1. How can I obtain the Bearer Access Token on the server side (Express.js with Passport.js)?
  2. Where should the Bearer Access Token be securely stored on the client side (Vue.js) for making requests to the external API (Asana in this scenario)?
  3. What is the best method to transfer the Bearer Access Token from the server (Express.js) to the client (Vue.js)?

Note that despite following various articles and successfully executing steps 1 to 4, the actual usage of the Bearer Access Token post-authentication remains unclear.

node.jsexpressauthenticationvue.jspassport.js

Answer №1

According to Asana's API documentation, the access_token needs to be included in the Authorization header when making requests, as shown below:

curl https://app.asana.com/api/1.0/users/me \
  -H "Authorization: Bearer ACCESS_TOKEN"

This is the standard method for passing an access token in OAuth2-based APIs. If you're having trouble with this process, consider using a tool like Pizzly which can simplify the OAuth authentication flow for you.

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