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https://github.com/lintangwisesa/crud_flask_postgresql

Basic CRUD with Python Flask & PostgreSQL Database
https://github.com/lintangwisesa/crud_flask_postgresql

flask postgresql python

Last synced: 4 days ago
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Basic CRUD with Python Flask & PostgreSQL Database

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# Basic CRUD: Flask & PostgreSQL

1. Activate __PostgreSQL__ server:

```bash
$ cd C:\Program Files\PostgreSQL\10\bin
$ psql -U postgres
Password for user postgres:
```

#

2. Create a database on PostgreSQL, my database name is __"lin_flask"__:

```bash
postgres=# CREATE DATABASE lin_flask;
postgres=# \l
postgres=# \c lin_flask
```

#

3. Create a __"users"__ table on __"lin_flask"__ database:

```bash
lin_flask=# CREATE TABLE users(
id SERIAL PRIMARY KEY,
name VARCHAR(255),
age VARCAR(255)
);
lin_flask=# \d
```

#

4. Clone this repo. Insert your database URI to __database.yaml__ file, then install all the packages needed. In this project I'm using __flask__, __flask_cors__, __flask_mysqldb__, __Flask-SQLAlchemy__ & __psycopg2__:
```bash
$ git clone https://github.com/LintangWisesa/CRUD_Flask_PostgreSQL.git
$ cd CRUD_Flask_PostgreSQL
$ pip install flask flask_cors Flask-SQLAlchemy psycopg2
```

#

5. Run the server file. Make sure your PostgreSQL server is still running. Your application server will run locally at __*http://localhost:5000/*__ :
```bash
$ python app.py
```

#

6. Give a request to the server. You can use __Postman__ app:

__See the opening screen (*home.html*)__
```bash
GET /
```

__Post a data to database:__
```bash
POST /data
body request: {name:"x", age:"y"}
```
__Get all data & specific data by id:__
```bash
GET /data
GET /data/{:id}
```
__Update a data by id__:
```bash
PUT /data/{:id}
body request: {name:"x", age:"y"}
```
__Delete a data by id:__
```bash
DELETE /data/{:id}
```

#

7. Enjoy your code! 😎👌

## See also:

- [Basic CRUD: Flask & MySQL](https://github.com/LintangWisesa/CRUD_Flask_MySQL)
- [Basic CRUD: Flask & PostgreSQL](https://github.com/LintangWisesa/CRUD_Flask_PostgreSQL)
- [Basic CRUD: Flask & MongoDB](https://github.com/LintangWisesa/CRUD_Flask_MongoDB)

#

#### Lintang Wisesa :love_letter: [email protected]_

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