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76Network & protocolsEssential

JSON

JSON

A lightweight, readable data format often used to pass data between frontend and backend.

For example

Word data returned by the API is usually JSON.

Resources

MDN JSON

Related terms

70Network & protocols

HTTP

HTTP

The base protocol for sending data over the internet; it defines how client and server talk.

For example

When I type a URL in the browser, I am sending a request to the server over HTTP.

MDN HTTP
71Network & protocols

Request

Request

The data and instructions a client sends to a server, usually with a URL, method and parameters.

For example

I send a request to the server to get today's word list.

MDN HTTP Methods
72Network & protocols

Response

Response

The data and result the server returns after receiving a request.

For example

The server returns a JSON response containing the word and its meaning.

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