Compas

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Code generators ​

Compas' main feature set consists of target aware code generation. By utilizing a structure or specification, Compas can generate type definitions, validators, API clients, routers and database clients.

Installation ​

Compas requires at least Node.js 18 or higher.

shell
npm install --save-dev --save-exact @compas/code-gen  # npm
yarn add --dev --exact @compas/code-gen               # yarn

Explore ​

Taking the following OpenAPI specification

yaml
openapi: 3.0.6
tags:
  - name: user
    description: User related routes
paths:
  /users:
    get:
      tags: [user]
      summary: Returns a list of users.
      operationId: list
      responses:
        "200": # status code
          content:
            application/json:
              schema:
                type: array
                items:
                  type: string

Compas can generate a Typescript API client with the following signature:

ts
declare function apiUserList(axiosInstance: AxiosInstance): Promise<string[]>;

Or a typed Koa compatible router which can be used like:

js
userHandlers.list = async (ctx) => {
  // ctx.body is typed as `string[]`
  ctx.body = ["user 1", "user 2"];
};

And a bunch more! Start discovering the Compas code generators by reading more about