Practical GraphQL - Become a GraphQL Ninja - Separating Models, Schemas and Resolvers – continued

The video tutorial explains the use of resolver functions in GraphQL, focusing on the four parameters: parent, arguments, context, and info. It details how to set up and use the context to share data across the GraphQL system, using a models file and a hypothetical logged-in user. The tutorial also covers accessing context in resolver functions and implementing it in mutations. Final adjustments and testing are demonstrated to ensure functionality.

What is the primary purpose of the context parameter in GraphQL resolver functions?

• To manage user authentication

• To handle errors in GraphQL queries

• To share data across the entire GraphQL system

• To define the structure of the GraphQL schema

Where do you set up the context object in a GraphQL server?

• In the resolver function

• In the GraphQL schema file

• In the server configuration, alongside type definitions and resolvers

• In the client-side application

What is the role of the 'me' variable in the context?

• To store the current server status

• To define the GraphQL schema

• To represent a hypothetical logged-in user

• To manage database connections

How can you access the context within a resolver function?

• By importing it from a separate module

• As the third parameter of the resolver function

• As a global variable

• As the first parameter of the resolver function

What is the correct way to update user data using the context in a mutation?

• Use models.users.delete() to remove a user

• Use models.users.update() to change user data

• Use models.users.push() to add a new user

• Directly modify the user object

Why is it important to ensure models are correctly accessed in resolvers?

• To enhance user interface design

• To improve server performance

• To ensure data consistency and access

• To reduce server load

What should you do if you encounter a typing mistake in your GraphQL code?

• Restart the server

• Reinstall the GraphQL package

• Fix the mistake and retest the application

• Ignore it and continue