https://github.com/galib-23/postgres-todo-server
This is the server code of a todo application created with Node.js and Postgres
https://github.com/galib-23/postgres-todo-server
Last synced: 3 months ago
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This is the server code of a todo application created with Node.js and Postgres
- Host: GitHub
- URL: https://github.com/galib-23/postgres-todo-server
- Owner: Galib-23
- Created: 2024-06-12T05:15:56.000Z (12 months ago)
- Default Branch: main
- Last Pushed: 2024-06-12T07:29:56.000Z (12 months ago)
- Last Synced: 2025-01-11T05:25:31.128Z (5 months ago)
- Language: JavaScript
- Size: 36.1 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Create a server using Node.js and PostgreSQL as Database
**1.** Initialize **package.json**
```bash
npm init -y
```
**2.** Install required modules
```bash
npm i express nodemon cors pg
```
**3.** Create the **index.js** file
```javascript
const express = require('express');
const cors = require('cors');
const app = express();
app.use(cors());
app.use(express.json());
app.listen(5000, () => {
console.log("Server running on port 5000")
})
```
**4.** Create a file **database.sql**
```sql
CREATE DATABASE perntodo;
CREATE TABLE todo(
todo_id SERIAL PRIMARY KEY,
description VARCHAR(255)
)
```
**#** postgres commands:
- login:
```sql
psql -U postgres
```
- list databases:
```sql
\l
```
- Connect to a database:
```sql
\c testDb
```
- Find tables:
```sql
\dt
```
**5.** Create the db and table in CMD:
```sql
CREATE DATABASE perntodo;
CREATE TABLE todo(
todo_id SERIAL PRIMARY KEY,
description VARCHAR(255)
)
```
**6.** Create the connection pool in **db.js** file:
```javascript
const Pool = require('pg').Pool;
const pool = new Pool({
user: "postgres",
password: "galib2723",
host: "localhost",
port: 5432,
database: "perntodo"
});
module.exports = pool;
```
**7.** Import the pool in **index.js** file:
```javascript
const pool = require("./db");
```
**8.** Create the routes e.g.:
```javascript
app.post("/todos", async (req, res) => {
try {
const { description } = req.body;
const newTodo = await pool.query("INSERT INTO todo (description) values($1) RETURNING * ", [description]);
res.json(newTodo.rows[0]);
} catch (error) {
console.log(error.message);
}
});
```