https://github.com/mingfang/ra-postgres-dataprovider

React-Admin Postgres Data Provider
https://github.com/mingfang/ra-postgres-dataprovider

Last synced: 19 days ago
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React-Admin Postgres Data Provider

• Host: GitHub
• URL: https://github.com/mingfang/ra-postgres-dataprovider
• Owner: mingfang
• Created: 2023-01-30T14:34:24.000Z (almost 2 years ago)
• Default Branch: master
• Last Pushed: 2023-01-31T03:55:04.000Z (almost 2 years ago)
• Last Synced: 2024-11-06T15:18:15.447Z (2 months ago)
• Language: JavaScript
• Size: 8.79 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# ra-postgres-dataprovider

React-Admin Postgres Data Provider

## Requirements

[node-postgres](https://github.com/brianc/node-postgres) is server side only.

To work on the client side, then the combination of

[Neon WSProxy](https://github.com/neondatabase/wsproxy) and

[Neon Serverless](https://github.com/neondatabase/serverless)

```mermaid

---

title: Client-Server Data Flow

---

flowchart LR

  subgraph Client-Side

    ra([React-Admin])

    provider[ra-postgres-dataprovider]

  end

  subgraph Server-Side

  proxy[WSProxy]

  db[(Postgres)]

  end

ra-->provider-. WebSocket .->proxy-->db

```

## Sample

```jsx

import { useEffect, useState } from 'react'

import { Admin, EditGuesser, ListGuesser, Loading, Resource } from 'react-admin'

import dataProviderFactory from 'ra-postgres-dataprovider'

// use node-postgres

import { Pool } from 'pg'

// or use Neon

import { Pool, neonConfig } from '@neondatabase/serverless'

neonConfig.wsProxy = (host, port) => `wsproxy/v1?address=${host}:${port}`

neonConfig.useSecureWebSocket = true

const DATABASE_URL = process.env.DATABASE_URL

export default () => {

  const [dataProvider, setDataProvider] = useState(null)

  useEffect(()=>{

    const startDataProvider = async () => {

      const pool = new Pool({

        connectionString: DATABASE_URL,

        max: 2,

      })

      await pool.connect()

      await pool.query("set schema 'public'")

      setDataProvider(dataProviderFactory(pool));

    }

    if (dataProvider === null) {

      startDataProvider();

    }

  }, [dataProvider])

  if (dataProvider === null) return 

  return (

    <>

      

        

      

    >

  )

}

```