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Minimal project of a Web app with Database

The project idea is from the challenge shown in this repo. The solution shown here is a React app that reads a .txt files and inserts the content to a PostgreSQL table. Once the data is loaded then it is fetched from the database and then presented in a table with the total count of sales.

Requirements

Web app (Javascript)

npm 6.14.12
create-react-app 4.0.2
lodash 4.17.21
axios 0.21.1

API (Python)

flask 2.0.1
flask_api 3.0.x
flask_cors 3.0.10
pandas 1.2.4
psycopg2 2.8.6

Setup (local run)

1. Create database

First the PostgreSQL server must be running. From the terminal run:

pg_ctl -D /usr/local/var/postgres start

Then, the server can be accesed from terminal with:

psql postgres

Run the following command to create the database that the API will be using:

CREATE DATABASE project ENCODING='UTF8' TEMPLATE='template0';

2. Start API

In the terminal, from the api directory run:

python main.py

3. Create web app

On another terminal, create a react app with my-app directory:

npx create-react-app web_app my-app

Next, replace content of my-app/src directory with the content of web_app/src from this repository. Also, add <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.4.1/semantic.min.css" /> to head tag of my-app/public/index.html file.

4. Start web app

On my-app directory run:

npm start

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