heroku flask

Most of my career is using Microsoft's architecture. Recently I decided to step out of the comfort zone of technology and enter the Open Source Software world. My daily work project is a RESTful service, which needs to run on mainstream hardware and be horizontally expanded as needed. To do this, I decided to use Flask and Nginx. Flask is a lightweight PythonWeb framework. Nginx is a very stable Web server

Profiling SSTI in Flask/Jinja2 AnalysisPart 1 If you have never heard of a server template injection (SSTI) attack, or do not know much about it, you are advised to read this article written by James Kettle before continuing to read this article. As a security practitioner, we are helping enterprises make risk-based decisions. Because risks are the product of influences and attributes, we cannot calculate the corresponding risk values correctly withou

1. Flask-script, provides a command-line parser for the Flask program:(venv) $ pip Install Flask-script2. Bootstrap (http://getbootstrap.com/) is the client frame, see the connection for detailsIntegration of FLASK-BOOTSTRAP commands,(venv) $ pip Install Flask-bootstrap3.

Flask Note One (unit test, Debugger, Logger)Flask is a framework for developing web programs using Python. Rely on Werkzeug for full WSGI support, as well as JINJA2 to provide templates support. Flask's design philosophy is to provide a micro and convenient framework. "Micro" is because other functions, such as database access, are done through extension in addition to the implementation of the basic featur

Tutorial on sending and receiving emails under the Python Flask framework, pythonflask Brief Introduction In most of these tutorials, we will spare no effort to introduce how to use databases. Today, we will focus on another important feature in web applications, that is, how to push emails to users. In a lightweight application, we may add the following mail service function: when a user has a new fan, we send an email to notify the user. There are m

Flask + pymysql for Mysql database operations, flaskpymysqlInstall flask-sqlalchemy and pymysql modules pip install flask-sqlalchemy pymysql ### Introduction to Flask-SQLAlchemy 1. ORM: Object Relationship Mapping (model Relationship ing ).2. flask-sqlalchemy is a set of ORM

Although Flask's request object provides sufficient support for form processing, there are some tasks that are tedious and repetitive. For example, generate HTML code for the form and validate the submission form data.The FLASK-WTF extension solves these problems. It is based on wtformsPrevent cross-site request forgeryCross-site requests forgery (Cross-site request forgery), also known as One-click attack or session riding, is usually abbreviated as

Parse the request object usage in the Python Flask framework from the source code, pythonflask From flask import requestFlask is a very popular Python Web framework. I have also written some projects, large and small. Flask has a feature that I like very much, no matter where it is, if you want to obtain the current request object, you can simply:Get content from

The following is a simple Flask sample code that can be run, from which the sample code analyzes what the flask source is doing.The Flask sample code is as follows: fromFlaskImportFlaskapp= Flask (__name__) @app. Route ('/')defHello_world ():return 'Hello world!'@app. Route ('/user/')defUser (name):return ''%nameif __n

First, IntroductionFlask is a mini-framework developed based on Python and relies on jinja2 templates and Werkzeug Wsgi services, for the Werkzeug essence is the socket server, which is used to receive HTTP requests and preprocess requests, and then trigger the flask framework. Based on the functionality provided by the Flask framework, the developer processes the request and returns it to the user, and if

Label:Python Database FrameworkMost database engines have Python packages, including open source packages and commercial packages. Flask does not restrict what type of database package you use, so you can choose to use MySQL, Postgres, SQLite, Redis, MongoDB, or CouchDB, depending on your preference. If none of this satisfies the requirements, there are some database abstraction layer code packages to choose from, such as SQLAlchemy and mongoengine. I

interface, so we can focus on a function to process a URL. As for the URL-to-function mapping, it is given to the web framework. Because it is easy to develop a web framework in Python, Python has hundreds of open-source web frameworks. Here we do not discuss the advantages and disadvantages of various web frameworks, directly choose a more popular web framework--flask to use. Writing a web App with flask

Flask provides a signal (signals) function, which is a message distribution mechanism. Similar to hooks (Hooks). Using the signal function can reduce the coupling of the program and decompose the complex business model. For example, after updating the product data, you can send a signal. When there is a function to process the product data, the signal can be captured for processing. For example, to create a product cache, or to update the search index

Flask provides a signal (signals) function, which is a message distribution mechanism. Similar to hooks (Hooks). Using the signal function can reduce the coupling of the program and decompose the complex business model. For example, after updating the product data, you can send a signal. When there is a function to process the product data, the signal can be captured for processing. For example, to create a product cache, or to update the search index

In a previous article, using Python's flask to implement a RESTful API server side simply demonstrated the flask Real API server, which mentioned that because of the stateless principle, there is no session cookie, if the access needs to verify the interface, A client request must send a user name and password each time. Typically in real-world apps, the username and password are not sent every time.In this

This article describes how to use the Flask framework to obtain user IP addresses in python. The example shows how to use the remote_addr framework to obtain IP addresses in Python, which is of great practical value, for more information about how to use the Flask framework to obtain user IP addresses, see the following example. Share it with you for your reference. The details are as follows: The followin

Content review:1.flask-sessionFrom Flask Import sessionFrom flask_session Import sessionapp.config["Sesstion_tpye"] = "Redis"app.config["Sesstion_redis"] = REDIS ("IP", port,db=1)# select 1-----[1]Session (APP)session["key"] = "value"session["Key"]2.Flask CBVClass Index (views. Methodview):methods = ["GET"]decorators = [A,b,c]Def get ():Return "File" App.add_url_

Exploration of server template injection in Flask/Jinja2 (1) If you haven't heard of SSTI (server-side template injection) or do not know enough about it, we suggest you read an article written by James Kettle before that.As a professional security engineer, our job is to help enterprises make risk decisions. Discover threats to the product in a timely manner. The impact of vulnerabilities on the product cannot be accurately calculated. As a person wh

Automated O M: website svn Code Update (flask + saltstack) and svnflaskPeriodic summary: It took about a week to complete the automatic website upgrade function. Many problems were encountered and many problems were learned. Here is a summary. 1. Overall architecture: backend: nginx + uwsgi # nginx provides web Services. uwsgi parses python code. Foreground: flask + bootstrap + html #

Use the SQLAlchemy tutorial in the Python program and Flask framework, flasksqlalchemy ORMOnce upon a time, when programmers were developing SQL statements with fear, they always had to worry about it. What should they do if the SQL statements were wrong and the database was broken? Or to obtain some data, internal and external connections, function stored procedures, and so on. Without a doubt, if I don't understand this, I think it's a twist. Maybe