Practical GraphQL - Become a GraphQL Ninja - Creating A JSON Web Token via GraphQL

This video tutorial explains how to implement a login system using GraphQL. It covers creating a login mutation, validating user credentials, generating JSON Web Tokens, and configuring environment variables. The tutorial also includes testing and debugging the login functionality.

What is the primary purpose of the login mutation in GraphQL?

• To create a new user

• To update user details

• To delete a user

• To authenticate a user and return a token

Which type is returned by the login mutation?

• User

• Token

• String

• Password

What should happen if a user is not found during login?

• Return a success message

• Create a new user

• Ignore the request

• Throw an error indicating user not found

What method is used to compare passwords in the user model?

• hashPassword

• comparePassword

• validatePassword

• encryptPassword

What library is used to generate JSON Web Tokens?

• jsonwebtoken

• express

• bcrypt

• apollo-server

What information is included in the payload of the JWT?

• User's email and password

• User's role and permissions

• User's ID, name, and username

• User's session ID

How is the JWT secret managed in the application?

• Hardcoded in the code

• Stored in a database

• Defined in an environment variable

• Generated dynamically for each request

What is the purpose of the 'expiresIn' parameter in JWT creation?

• To encrypt the token

• To specify the token's issuer

• To define the token's creation time

• To set the token's expiration time

What should be done if the password is incorrect during login?

• Throw an error indicating incorrect password

• Ignore the login attempt

• Log the user in anyway

• Reset the user's password

What tool is used to test the login mutation?

• Swagger

• cURL

• GraphQL Playground

• Postman