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Building a REST API in Fastify

Create your first REST API with Fastify in Node.js with CRUD operations: Setup a fastify server with autoloading, create dummy data with Faker, add plugins (CORS), and integrate Swagger to document and test the API.

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11 Tips That Make You a Better Typescript Programmer


1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields


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