data-contract

coming soon

These are the initial thoughts on how this will work

You can define a schema "GraphQL" style

And then it will be converted behind the scenes into a json schema that can be used to validate inputs and outputs.

This is inteded to help maintain contracts bewteen microservices in NodeJS

type Person {
  firstName: String
  lastName: String
}

{
  "id": "Person",
  "title": "Person",
  "properties": {
    "firstName": { "type": "string" },
    "lastName": { "type": "string" }
  }
}

import express from 'express';
import Contract from 'data-contract';
 
const contractTypes = `
  type Person {
    firstName: String
    lastName: String
  }
`;
 
const contract = new Contract(contractTypes);
 
const app = express();
 
app.use(contract.expressValidator);
 
app.listen(process.env.PORT, () => {
  console.log(`listening on port ${process.env.PORT}`);
});