Build a Flask Application with Blueprints - DEV Community

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Fri Dec 10 2021 17:11:35 GMT+0000 (Coordinated Universal Time)

Saved by @huskygeek #flask

myapp
|
|--app
|    |--main
|    |    |--__init__.py
|    |    |--main.py
|    |
|    |--auth
|    |    |--__init__.py
|    |    |--auth.py
|    |
|    |--__init__.py
|    |--errors.py
|    |--models.py
|    |-- templates/
|    |--static/
|
|--tests/
|--config.py
|--myapp.py
|--requirements.txt

f

https://dev.to/blankgodd/creating-a-blueprint-based-flask-app-199h

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Web Programming with Flask - Intro to Computer Science - Harvard's CS50 (2018) - YouTube

https://www.youtube.com/watch?v=zdgYw-3tzfI

Basic Flask App

from flask import Flask,render_template,request, redirect
 
 
app = Flask(__name__)
app.config['SECRET_KEY'] = 'dajdsjas'
 
 
@app.route('/home')
def home():
    return 'Home page'
 
 
 
@app.route('/take_parameter', methods = ["POST"])
def takeparam():
    try:
        pas = request.args(silent=True)
        #app.logger.info(json)
        return 'OK'
    except:
        return 'INTERNAL ERROR', 500
    
 
@app.route('/take_json', methods = ["POST"])
def takejson():
    try:
        pas = request.get_json(silent=True)
        #app.logger.info(json)
        return 'OK'
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if __name__ =='__main__':
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python - Flask ImportError: No Module Named Flask - Stack Overflow

from flask import Flask
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@app.route("/")
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python - Flask ImportError: No Module Named Flask - Stack Overflow


export FLASK_ENV=development                         

export FLASK_ENV=production 

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If you have installed many dependencies in your system and you need requirements.txt for a specific project, you can install first pipreqs:

$ pip install pipreqs

and execute the below command under the project folder.

$ pipreqs

This command will generate requirements.txt file for the particular project.

Python and Flask Tutorial in Visual Studio Code

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>{% block title %}{% endblock %}</title>
        <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='site.css')}}" />
    </head>

    <body>
        <div class="navbar">
            <a href="{{ url_for('home') }}" class="navbar-brand">Home</a>
            <a href="{{ url_for('about') }}" class="navbar-item">About</a>
            <a href="{{ url_for('contact') }}" class="navbar-item">Contact</a>
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<!doctype html>
<html>
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Use a Flask Blueprint to Architect Your Applications – Real Python

ecommerce/
|
├── static/
|   ├── logo.png
|   ├── main.css
|   ├── generic.js
|   └── product_view.js
|
├── templates/
|   ├── login.html
|   ├── forgot_password.html
|   ├── signup.html
|   ├── checkout.html
|   ├── cart_view.html
|   ├── index.html
|   ├── products_list.html
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|
├── app.py
├── config.py
└── models.py

Build a Flask Application with Blueprints - DEV Community

myapp
|
|--app
|    |--main
|    |    |--__init__.py
|    |    |--main.py
|    |
|    |--auth
|    |    |--__init__.py
|    |    |--auth.py
|    |
|    |--__init__.py
|    |--errors.py
|    |--models.py
|    |-- templates/
|    |--static/
|
|--tests/
|--config.py
|--myapp.py
|--requirements.txt

example de comment gérer des tâches

@app.route('/long-task')
def long_task():
	do_long_task()
	return "Task completed"

exemple avec threading

import threading

@app.route('/long-task')
def long_task():
	threading.Thread(target=do_long_task).start()
	return "Task started"

undefined

#python #flask #inputfile

Handling File Uploads With Flask - miguelgrinberg.com

<!doctype html>
<html>
  <head>
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  </head>
  <body>
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    <form method="POST" action="" enctype="multipart/form-data">
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</html>

#python #flask #uploadfile

Handling File Uploads With Flask - miguelgrinberg.com

from flask import Flask, render_template, request, redirect, url_for

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#flask #uploadfile

Handling File Uploads With Flask - miguelgrinberg.com

app.config['MAX_CONTENT_LENGTH'] = 1024 * 1024

#flask #uploadfile

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app.config['UPLOAD_EXTENSIONS'] = ['.jpg', '.png', '.gif']

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