GET, POST, PUT, DELETE handlers in Svelte - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of a GET handler in Svelte?

A GET handler retrieves data from the server and sends it back to the client. It is used to fetch information without changing anything on the server.

beginner

How does a POST handler differ from a GET handler?

A POST handler sends data from the client to the server to create or update resources. Unlike GET, POST changes data on the server.

intermediate

What is the role of a PUT handler in Svelte?

A PUT handler updates an existing resource on the server with new data sent from the client. It replaces the entire resource.

beginner

Explain what a DELETE handler does.

A DELETE handler removes a resource from the server. It tells the server to delete the specified data.

intermediate

In SvelteKit, where do you define GET, POST, PUT, DELETE handlers?

You define these handlers in a +server.js or +server.ts file inside the route folder. Each handler is an exported function named GET, POST, PUT, or DELETE.

Which HTTP method is used to fetch data without changing the server state?

A GET

B POST

C PUT

D DELETE

GET requests retrieve data and do not modify server data.

Which handler would you use to create a new resource on the server?

A GET

B PUT

C POST

D DELETE

POST is used to send data to create new resources.

What does a PUT handler do in SvelteKit?

A Deletes a resource

B Fetches data

C Creates a new resource

D Updates an existing resource

PUT replaces or updates an existing resource with new data.

Where do you place HTTP method handlers in a SvelteKit project?

A In +page.svelte files

B In +server.js or +server.ts files

C In app.html

D In static assets folder

Handlers are defined in +server.js or +server.ts files inside route folders.

Which HTTP method should you use to remove data from the server?

A DELETE

B POST

C PUT

D GET

DELETE requests remove resources from the server.

Describe how you would implement a POST handler in SvelteKit to save user data.

Think about reading data from the request and sending back a confirmation.

Explain the difference between GET and PUT handlers in SvelteKit with examples.

Consider what each method does to the server data.