Node.js Framework Series — 1.2.7. NestJS — Pipes

NestJS - A progressive Node.js framework

We create a pipe as a class with the @Injectable() decorator which should implement the PipeTransform interface. In general we use the pipes for the following cases:

• Transformation: to transform input data to the desired form(i.e., string to JSON object, integer to string..)
• Validation: to check the input data (e.g., JSON schema validation — if data is not valid, throw an exception..)

NestJs Architecture — Pipes

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Node.js Framework Series — 1. NestJS Framework

Node.js Framework Series I.I— NestJS — Lifecycle events

Node.js Framework Series — 1.2. NestJS — Building Blocks

Node.js Framework Series — 1.2.1. NestJS — Controllers

Node.js Framework Series — 1.2.2. NestJS — Modules

Node.js Framework Series — 1.2.3. NestJS — Providers/Services

Node.js Framework Series — 1.2.4. NestJS — Middleware

Node.js Framework Series — 1.2.5. NestJS — Interceptor

Node.js Framework Series — 1.2.6. NestJS — Exceptions

Node.js Framework Series — 1.2.7. NestJS — Pipes

Node.js Framework Series — 1.2.8. NestJS — Guards