Bearer token in Postman - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Bearer token in API testing?

A Bearer token is a type of access token used in API testing to authorize requests. It is sent in the HTTP header to prove the client has permission to access the resource.

beginner

How do you add a Bearer token in Postman?

In Postman, go to the Authorization tab, select 'Bearer Token' as the type, and paste your token in the Token field. Postman will add it to the request header automatically.

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Why should Bearer tokens be kept secret?

Bearer tokens grant access to protected resources. If someone else gets your token, they can use it to access your data or services without permission, like having a key to your house.

beginner

What HTTP header is used to send a Bearer token?

The 'Authorization' header is used. It looks like: Authorization: Bearer <token> where <token> is your actual token string.

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What happens if you send an API request without a valid Bearer token?

The server usually responds with an error like 401 Unauthorized, meaning you are not allowed to access the resource without proper authentication.

In Postman, where do you add a Bearer token for API requests?

A Authorization tab

B Headers tab

C Body tab

D Params tab

Bearer tokens are added in the Authorization tab where you select 'Bearer Token' type.

What does the 'Bearer' keyword in the Authorization header mean?

A It is the password of the client

B It is the username of the client

C It indicates the type of token used for authentication

D It is the API endpoint

The 'Bearer' keyword tells the server that the following string is a token used for authentication.

What HTTP status code usually means a missing or invalid Bearer token?

A 401 Unauthorized

B 200 OK

C 404 Not Found

D 500 Internal Server Error

401 Unauthorized means the request lacks valid authentication credentials.

Why is it important to keep Bearer tokens secure?

A Because they expire quickly

B Because they are used for logging only

C Because they are public information

D Because they allow access to protected resources

Bearer tokens grant access to resources, so if leaked, unauthorized users can misuse them.

Which header contains the Bearer token in an API request?

A Content-Type

B Authorization

C Accept

D User-Agent

The Authorization header carries the Bearer token.

Explain what a Bearer token is and how it is used in API testing with Postman.

Think about how you prove your identity to access a service.

Describe the security risks of exposing a Bearer token and best practices to protect it.

Imagine someone stealing your house key.