25 questions for “RESTful API Design with Express”

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Node.js Express & Middleware 4 Node.js GraphQL with Node.js 1

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25 questions in 1 technology

#	Question	Technology	Topic	Level
1	What is Express.js, and what problem does it solve compared to using Node.js's raw http module directly? Node.js › Express & Middleware	Node.js	Express & Middleware	Beginner
2	What is the difference between application-level, router-level, and route-specific middleware in Express? Node.js › Express & Middleware	Node.js	Express & Middleware	Intermediate
3	What does the express.json() and express.urlencoded() built-in middleware do, and why must it be registered before routes that need to read req.body? Node.js › Express & Middleware	Node.js	Express & Middleware	Intermediate
4	What is the difference between res.send(), res.json(), and res.end() in Express, and when should each be used? Node.js › Express & Middleware	Node.js	Express & Middleware	Intermediate
5	How would you set up a basic GraphQL server in Node.js using Apollo Server, and what are schema and resolvers? Node.js › GraphQL with Node.js	Node.js	GraphQL with Node.js	Beginner
6	What does the URL/URLSearchParams API provide, and why is it generally preferred over the older querystring module today? Node.js › Core Node.js Modules	Node.js	Core Node.js Modules	Beginner
7	What is GraphQL, and how does it differ from a traditional REST API in terms of how clients request data? Node.js › GraphQL	Node.js	GraphQL	Beginner
8	How would you create a basic HTTP server in Node.js using only the built-in node:http module, without any framework? Node.js › HTTP & Web Servers	Node.js	HTTP & Web Servers	Beginner
9	How would you implement a global 'not found' (404) handler in Express for any route that doesn't match a defined endpoint? Node.js › Error Handling	Node.js	Error Handling	Intermediate
10	What is content negotiation in HTTP, and how would a Node.js API implement it to return either JSON or XML based on a client's Accept header? Node.js › HTTP & Web Servers	Node.js	HTTP & Web Servers	Intermediate

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