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Fullstack Price Aggregator

UK supermarket price aggregator via web scraping. This was developed for my university project as an MVP so there are aspects which don't function correctly. I may update it in the future.

Features

  • Python REST backend via FastAPI
  • VueJS Frontend SPA with TypeScript using this template.
  • JWT Authentication between backend and frontend
  • CLI
  • Docker
  • Poetry
  • Web Scraped prices via selectorlib
  • Scrape JavaScript enabled pages using splash

Setup

Ensure you have Docker and Node.js installed.

  1. Clone this repository
  2. cd into project root and run docker-compose up --build -d. The starts the backend and on first run will build all the necessary containers which can take a few minutes.
  3. Once the backend has finished building, obtain a shell with docker-compose exec backend bash.
  4. To initialise the database run python manage.py createdb from within the bash shell.
    • (Optional) To seed the db with dummy data run python manage.py seeddb Note all passwords are set to password
  5. cd into the client directory run npm install which will install the required node modules.
  6. run npm run serve which will serve the client frontend.

Project URLs

URL Description
0.0.0.0:8000/api Backend JSON API
0.0.0.0:8000/docs Backend OpenAPI/Swagger-generated API Reference Documentation
0.0.0.0:8000/redoc Alternative interactive documentation provided by ReDoc
localhost:9527 Frontend VueJS Single Page Application

CLI

The backend includes a CLI which is heavily inspired by Netflix's Dispatch.

typer (same author as FastAPI) was used to create a CLI for the project and is accessed via manage.py.

To run commands you will need to a shell running inside the backend container with:

docker-compose run backend bash

To see all the available commands:

root@72293bee6b37:/app# python manage.py 
Usage: manage.py [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  config      Display application configuration.
  createdb    Creates an empty database.
  createrole  Add role to database.
  createuser  Create new user in the database.
  develop     Start a development server with reload.
  dropdb      Drop the existing database.
  routes      Display application routes and dependencies.
  seeddb      Add fake data to database.
  shell       Starts an interactive shell with app object imported.

Routes

root@72293bee6b37:/app# python manage.py routes

Application Endpoints
Path                           Methods    Dependencies
-----------------------------  ---------  --------------------------------------------------------
/api/v1/users/                 GET        ['RoleChecker: Roles: admin,user']
/api/v1/users/                 POST       ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}             GET        ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}             PUT        ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}             DELETE     ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}/roles       GET        ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}/roles       PUT        ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}/shops       GET        ['RoleChecker: Roles: admin,user']
/api/v1/users/{id}/shops       PUT        ['RoleChecker: Roles: admin,user']
/api/v1/roles/                 GET        ['RoleChecker: Roles: admin,user']
/api/v1/roles/                 POST       ['RoleChecker: Roles: admin,user']
/api/v1/roles/{id}             GET        ['RoleChecker: Roles: admin,user']
/api/v1/roles/{id}             PUT        ['RoleChecker: Roles: admin,user']
/api/v1/roles/{id}             DELETE     ['RoleChecker: Roles: admin,user']
/api/v1/shops/                 GET        ['RoleChecker: Roles: admin,user']
/api/v1/shops/                 POST       ['RoleChecker: Roles: admin,user']
/api/v1/shops/{id}             PUT        ['RoleChecker: Roles: admin,user']
/api/v1/shops/{id}             DELETE     ['RoleChecker: Roles: admin,user']
/api/v1/shops/listings/        GET        ['RoleChecker: Roles: admin,user']
/api/healthcheck               GET        []

Config

python manage.py config

Application Configuration
Setting                     Value(s)
--------------------------  --------------------------------------------------------------------
APP_DIR                     /app/app
STATIC_DIR                  /app/app/static
EMAIL_TEMPLATES_DIR         /app/app/static/email-templates/html
PROJECT_NAME                Fastapi Backend
SERVER_HOST                 0.0.0.0
CORS_WHITELIST              ['http://localhost', 'http://localhost:8000', 'http://0.0.0.0:8000']
FASTAPI_ENV                 development
DEBUG                       False
LOG_LEVEL                   debug
FIRST_SUPERUSER             [email protected]
FIRST_SUPERUSER_PASSWORD    a5dbf43e07f4d19e5b73bc89a8f74
USERS_OPEN_REGISTRATION     True
SECRET_KEY                  **********
JWT_AUTH_LIFETIME_SECONDS   604800
JWT_EMAIL_LIFETIME_SECONDS  3600
SMTP_USER                   [email protected]
SMTP_PASSWORD               **********
SMTP_TLS                    False
SMTP_SSL                    False
SMTP_HOST                   mailhog
SMTP_PORT                   1025
POSTGRES_USER               postgres
POSTGRES_PASSWORD           **********
POSTGRES_HOST               postgres
POSTGRES_PORT               5432
POSTGRES_DB                 fastapi_backend

Frontend views

Login view

Login View

Admin dashboard view

Admin dashboard view

User CRUD view

User CRUD View

User create view

User create view

User profile view

User profile view

Shop CRUD view

Shop CRUD view

Shop select view

Shop select view

Scraped listings view

Scraped listings view