Typia

// RUNTIME VALIDATORS
exportfunctionis<T>(input:unknown):inputisT;// returns boolean
exportfunctionassert<T>(input:unknown):T;// throws TypeGuardError
exportfunctionassertGuard<T>(input:unknown):assertsinputisT;
exportfunctionvalidate<T>(input:unknown):IValidation<T>;// detailed

// JSON FUNCTIONS
exportnamespacejson{
exportfunctionapplication<T>():IJsonApplication;// JSON schema
exportfunctionassertParse<T>(input:string):T;// type safe parser
exportfunctionassertStringify<T>(input:T):string;// safe and faster
}

// PROTOCOL BUFFER
exportnamespaceprotobuf{
exportfunctionmessage<T>():string;// Protocol Buffer message
exportfunctionassertDecode<T>(buffer:Uint8Array):T;// safe decoder
exportfunctionassertEncode<T>(input:T):Uint8Array;// safe encoder
}

// RANDOM GENERATOR
exportfunctionrandom<T>(g?:Partial<IRandomGenerator>):T;

Typia is a transformer library supporting below features:

• Super-fast Runtime Validators
• Enhanced JSON functions
• Protocol Buffer encoder and decoder
• Random data generator

Note

• Only one linerequired, with pure TypeScript type
• Runtime validator is20,000x fasterthanclass-validator
• JSON serialization is200x fasterthanclass-transformer

Sponsors

Thanks for your support.

Your donation encouragestypiadevelopment.

Also,typiais re-distributing half of donations to core contributors oftypia.

• nonara/ts-patch
• ryoppippi/unplugin-typia

Playground

You can experience how typia works byplayground website:

• 💻https://typia.io/playground

Guide Documents

Check out the document in thewebsite:

🏠 Home

• Introduction
• Setup
• Pure TypeScript

📖 Features

• Runtime Validators
  • assert()function
  • is()function
  • validate()function
  • Functional Module
  • Special Tags
• Enhanced JSON
  • JSON Schema
  • stringify()functions
  • parse()functions
• Protocol Buffer
  • Message Schema
  • decode()functions
  • encode()functions
• Random Generator
• Miscellaneous

🔗 Appendix

• API Documents
• Utillization Cases
  • NestJS
  • Prisma
  • tRPC
• ⇲ Benchmark Result
• ⇲dev.toArticles