docs: README

README.md

@@ -0,0 +1,44 @@
+# fastify-postgraphile
+
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  ![CI workflow](https://github.com/alemagio/fastify-postgraphile/workflows/CI%20workflow/badge.svg)
+
+`fastify-postgraphile` enables the use of [Postgraphile](https://www.graphile.org/postgraphile) in a Fastify application.
+
+Supports Fastify versions `3.x`
+
+## Install
+```
+npm i fastify-postgraphile
+```
+
+## Usage
+Require `fastify-postgraphile` and register it as any other plugin, it will add a `graphql` reply decorator.
+```js
+const fastify = require('fastify')()
+
+fastify.register(require('fastify-postgraphile'), {
+  poolConfig: {
+    user: 'postgres',
+    host: 'localhost',
+    database: 'postgres',
+    password: 'password',
+    port: 5432
+  },
+  schemas: 'public'
+})
+
+fastify.get('/', async (req, reply) => {
+  return reply.graphql(req.body.query, req.body.variables)
+})
+
+fastify.listen(3000)
+```
+
+## Acknowledgements
+
+The code is a port for Fastify of [`postgraphile`](https://www.graphile.org/postgraphile).
+
+## License
+
+Licensed under [MIT](./LICENSE).<br/>
+[`postgraphile` license](https://github.com/graphile/postgraphile/blob/v4/LICENSE.md)