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schema-script

Zero-configuration pre-processor for generating runtime and static TypeScript/GraphQL types based on JSON schemas.

Features

✍️ JSON Schema for defining external interfaces (APIs, database, user input)

🌈 Generate static and runtime TypeScript types

😎 Generated files look great thanks to prettier, formatted according to your project settings.

Prerequisites

• put your JSON schemas files in the folders where you want the generated types to be placed
• use the following pattern for naming files <typeName>.schema.json
• add a $comment attribute to your schemas and define what schema-script should generate:

    "$comment": "+ts +iots +graphql"
  

Note: for +iots install io-ts(a TypeScript compatible runtime type system for IO decoding/encoding).

Note: +graphql support is coming.

Getting Started

npm i schema-script -g
schema-script <dir-with-schemas>
ss  <dir-with-schemas>

schema-script will go over all files matching the pattern <typeName>.schema.json. It will generate TypeScript files next to the schema file as following <TypeName>.ts.

Examples

See ./examples for some examples of generated types.

Get Help

Probably schema-script is not working as expected for all possible JSON schemas. It needs more testing and your feedback:

Open an issue