Flask Config Testing

One thing you may want to take into account when testing this quickstart with distro-supplied packages, is that very probably your distribution has built uWSGI in modular way (every feature is a different plugin that must be loaded). This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. Flask-Injector binds key flask dependencies by default, so this is already available without us needing to specify it explicitly. Our code up to this point: from flask import Flask from flask_ask import Ask, statement, question, session import json. For many of these, I source the values from environment variables of the same name, so that these values can be set externally. Differences Between Django vs Flask. Supports Python Frameworks built on WSGI such as Flask, Bottle, and Pyramid. pytest-flask provides a list of useful fixtures to simplify application testing. You might put it directly in the app. Flask-Ask is a Flask extension that makes building voice user interfaces with the Alexa Skills Kit easy and fun. Learn how to configure and secure a Working with Linux File Access Control Lists (FACLs). I must admit I was quite surprised by the results – specifically, by the fact that using extra fans (one extra for the air cooler, two extra for the AIO) in a push/pull configuration made so. Share on Twitter. Welcome to the fourth post on using Vue. If the package is installed, airflow will automatically load the registered plugins from the entrypoint list. Flask-Mail extension makes it very easy to set up a simple interface with any email server. This means no mucking around with different allowed headers, methods, etc. Docker-Compose: Getting Flask up and running Posted on March 29, 2017 by Ernst Haagsman A couple of issues were resolved in PyCharm 2017. Test ¶ Test file was use flask_paginate insetad of flask. com" PORT = 6666 MESSAGE = "Dynaconf works like a charm with Flask and. With this you can access the request, g and session objects like in view functions. In this tutorial, we will show you how to create a simple Flask application which runs on uWSGI and is reverse proxied through NGINX. With Flask-JSON response class JsonTestResponse you can use json attribute. py acts as a Flask configuration module, it can be used to alter the settings Flask itself, as well as Flask extensions like flask-wtf, flask-cache, flask-migrate, and flask-appbuilder. Independent of how you load your config, there is a config object available which holds the loaded configuration values: The config attribute of the Flask object. Before you begin Kubernetes Engine. by Greg Obinna How to structure a Flask-RESTPlus web service for production builds Image credit - frsjobs. …In this section, we are going to cover how testing can be…done in a Flask application using the Flask test client. Enable unittest framework Assign the value true against the setting python. Once you have verified that the connection between your app and OneLogin is working, you’ll want to set this value to perform an actual validation. In this part of the "Learning Flask" series, we're going to cover our preferred app configuration method, using a config file with classes. config_distro. Other Testing Tricks¶ Besides using the test client as shown above, there is also the test_request_context() method that can be used in combination with the with statement to activate a request context temporarily. Test discovery applies the discovery patterns for the current framework (which can be customized using the Test configuration settings). Flask-WebTest provides a set of utilities to ease testing Flask applications with WebTest. Testing support. This module provides the API to do so but does not influence a sites operation. unittestEnabled as outlined here. And because Flask warns you not to run Flask directly in production, I call the Flask app via uWSGI. config['DEBUG'] == True in Production. After you get your dependencies installed and confirm they're doing the trick for you, you'll probably want to keep track of and control what versions of the dependencies you're using. We have test, which fails. Flask-PyMongo depends on recent versions of Flask and PyMongo, where “recent” is defined to mean “was released in the last 3 years”. Typically refers to flask. py, then navigating to localhost:5000 in your browser. Deploy Flask, a Python 3 microframework, on Apache web server on Ubuntu. json, this config file does not use a file-location based resolution, and is applied consistently to any file under project root, including dependencies inside node_modules. Flask-Injector binds key flask dependencies by default, so this is already available without us needing to specify it explicitly. This means there's no built-in database interaction, but the flask-sqlalchemy package will connect a SQL database to a Flask application. It is meant to work with the authentication provided by packages such as Flask-Login or Flask-Security. PROD variable is effective here as well. Considering the fact that flask is a micro framework, it has its limitations in providing the facilities to the developer. This tutorial puts a copy of the Flask library in your app's directory. The Flask documentation on testing explains how to use the Werkzeug test client for running tests in general. py, then navigating to localhost:5000 in your browser. Creating a Basic Flask Application. OIDC_CLIENT_SECRETS: the location of the OpenID Connect secrets file; OIDC_COOKIE_SECURE: allows development mode for testing user login. The following are code examples for showing how to use flask. SQLAlchemy (app) # Create your Flask-SQLALchemy models as usual but with the following # restriction: they must have an __init__ method that accepts keyword # arguments for all columns (the constructor in # flask_sqlalchemy. Hydro Flask® guarantees every Hydro Flask® product with a limited warranty against manufacturer defects! Hydro Flask® Lifetime Warranty. by Patrick Ogenstad; February 28, 2017; Flask includes a Python decorator which allows you to run a function before the first request from a user is processed. Flask-Mail Extension. This will allow us to run the. import endpoints. This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. To test and examine the rendered template, without having to attempt a. Now it is time to write simple unit test for our flask app. One such method was the from_pyfile method. Testing with SQLAlchemy¶. Differences Between Django vs Flask. The Config dependency is bound to a singleton scope. Software testing is an essential skill for any developer, and I'm here to help you truly understand all types of test automation with Python. It is assumed that you are using the Flask-SQLAlchemyextension, but if not the examples should not be too difficult to adapt to your own particular setup. Use it to switch configuration. With that said, I didn't think it was fair to make a separate paid course to learn about building APIs with Flask, so I locked myself in my office for 6 weeks and created a completely separate bonus app along with 18 videos that cover building RESTful APIs (and web sockets) with Flask. AttributeError: 'FlaskClient' object has no attribute 'config' Only from debugging I saw that there was no "config" attribute instead I had to go self. Additionally it can be launched by make shell or make shell_prod command. Step 6 : Create uWSGI Initialisation File. This should show the Flask app’s default page : Test site running under Flask. Then found that the enterprise LTS Linux distro uses an out-of-date Python and Flask stack, so my app didn't work. Flask taken from open source projects. It replaces Flask's Response class with custom one if TESTING config flag is enabled. The problem I had is that the function doesn’t get run until after a user has visited a page for the first time. Please enable JavaScript to get the best Travis CI. py - that defines all configuration settings, that are required for the Flask application. Since superset_config. Generally you want to make sure that if you are doing an integration type of test that you are actually testing the same thing which means that the configuration must be as close to identical as you can make it. py FLASK_ENV=development flask run If you don't want to use Application Factory pattern, you could just initialize app and import it in your endpoints. Flask-Mail extension makes it very easy to set up a simple interface with any email server. Data Filters. It provides a flexible mechanism to store the data in the database of your choice. But hold on a minute, young Padawan. Now, let's set up Selenium. This tutorial puts a copy of the Flask library in your app's directory. Flask-SQLAlchemy loads these values from your main Flask config which can be populated in various ways. Server-side apps (for example: a catalog, content search and display, reservation site or most other interactive websites) use a framework to handle the details of the web network request, page display and database input/output -- while freeing the programmer to supply just the. In this part of the "Learning Flask" series, we're going to cover our preferred app configuration method, using a config file with classes. Object-based configuration. To build a complex webapp, you could roll-your-own (RYO) from scratch or build it over a framework (which defines the structure and provides a set of libraries for common tasks). config in to a dynaconf instance. In this section we dive a bit more deep into looking into how we are going to have some basic functional testing for the application and then we look look into making a config file and finally merge all the changes and make them into our release 0. Here are the examples of the python api flask. The code would run normally, but my test cases where failing with the following two errors:. Use it to switch configuration. So to get our Python code running on a web server is tricky. A cookie will be saved on the user’s computer, and then Flask-Login will automatically restore the user ID from that cookie if it is not in the session. Introduction The tutorial, Python flask multiple files upload example, will show you how to upload multiple files using Python 3 and Flask technologies. Test discovery applies the discovery patterns for the current framework (which can be customized using the Test configuration settings). Solution 1: Originally documented by KEATH MILLIGAN on 13 October 2016. The Flask-Mail extension provides a simple interface to set up SMTP with your Flask application and to send messages from your views and scripts. Introduction. The Heroku Toolbet includes Foreman, used to run the app locally through the Procfile for testing purposes. There are a few essential configuration variables we need to set upfront before interacting with our database. When you start Docker this way, it runs in the foreground and sends its logs directly to your terminal. environ['API_TESTING'] = '1'. Good pattern to follow is to use classes for your Flask application configuration: and to use this configuration, the from_object method should be used: EnvVars-based configuration. But hold on a minute, young Padawan. Share on Twitter. Flask is very much a "do it yourself" web framework. I started by creating a Dockerfile: # mkdir chatbot # cd chatbot # vi Dockerfile. Nowadays, choosing Python to develop applications is becoming a very popular choice. Once we have several configuration files, we can move them to their own config directory. Python standard library has a module called smtplib which can be used to send an email. Welcome to the most comprehensive course on Automated Software Testing with Python on Udemy. Flask is a very simple, but extremely flexible framework meant to provide your applications with functionality without being too restrictive about structure and design. The code would run normally, but my test cases where failing with the following two errors:. Testing only one thing in your unit tests forces you to. Having a test case that works while the other doesn't comes down to configuration not being set up properly for the file uploads. When the test coverage is large you can have confidence that modifications and additions do not affect the application in a bad way just by running the tests. Django, on one hand, provides a full-featured Model-View-Controller Framework, flask, on the other hand, is a micro-framework which beliefs in the concept of doing one thing and do it well. Sorry there was no meaningful exception. For example this might activate unittest helpers that have an additional runtime cost which should not be enabled by default. We need to configure database connection with flask module and that’s why we have imported app module and setup the MySQL configuration with flask module. Once we have a small Flask application working in the form of a home page, we'll iterate on this site, turning it into a functioning API. Enable unittest framework Assign the value true against the setting python. Plus, learn about a few key plugins that make using Flask even easier. Flask gives us the ability to choose a configuration file on load based on the value of an environment variable. This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. I’ve been on a big unit testing kick at work recently which is spilling over into updating the unit tests for my personal projects. 跟你如何载入配置无关,会有一个可用的配置对象保存着载入的配置值: Flask 对象的 config 属性。这是 Flask 自己放置特定配置值的地方,也是扩展可以存储配置值的地方。但是,你也可以把 自己的配置保存到这个对象里。. route('/test', methods=['PUT']) #allows only PUT #Configuration #direct access to config app. app = Flask(__name__) app. python language, tutorials, tutorial, python, programming, development, python modules, python module. Starting with Flask 0. As StackOverflow recently analyzed, Python is one of the fastest-growing programming languages, having surpassed even Java on the number of questions. com" PORT = 6666 MESSAGE = "Dynaconf works like a charm with Flask and. As the Flask docs promise, your app's config can be modified as you would a dictionary, and can be modified basically anywhere. We'll learn it by building a simple game that asks you to repeat three numbers backwards. Apache will use WSGI file to access our Flask application, so the WSGI file allows Apache to interact with Python as if it is native. Server-side apps (for example: a catalog, content search and display, reservation site or most other interactive websites) use a framework to handle the details of the web network request, page display and database input/output -- while freeing the programmer to supply just the. It will be a simple bucket list application where users can register, sign in and create their bucket list. Want to test, to ensure the proper config was loaded? Add a print statement to __init__. Aug 14, 2014. This tutorial takes a test-first approach to implementing token-based authentication in a Flask app using JSON Web Tokens (JWTs). Flask is a fantastic micro web framework for Python, however, it is not a native web language. We have test, which fails. Though a great resource for Django enthusiasts, not everyone wants to code in Django. Next, add a MySQL instance to your code:. In this tutorial, we will show you how to create a simple Flask application which runs on uWSGI and is reverse proxied through NGINX. This means no mucking around with different allowed headers, methods, etc. route('/test', methods=['PUT']) #allows only PUT #Configuration #direct access to config app. Find out how to use Flask with Python to approach database access, authentication, and other common tasks. The Flask configuration is given through the class variables in Config. Test discovery applies the discovery patterns for the current framework (which can be customized using the Test configuration settings). We have test, which fails. Besides providing support for all werkzeug's original caching backends through a uniformed API, it is also possible to develop your own caching backend by subclassing flask_caching. As StackOverflow recently analyzed, Python is one of the fastest-growing programming languages, having surpassed even Java on the number of questions. Basically it is a thin wrapper around the paho-mqtt package to simplify MQTT integration in a Flask application. Here is example test project:. The following are code examples for showing how to use flask. Once you're happy with how your application is running on the development server, you can test it locally by building the services with Docker Compose. It is important to set TESTING configuration setting to true, to propagate the exceptions to the test client. sync service from Drupal 8 core. For example this might activate unittest helpers that have an additional runtime cost which should not be enabled by default. Follow the procedure mentioned in Deploy Your Site With the EB CLI. from flask import Flask from flask_restplus import Api app = Flask (__name__) app. With great power comes great responsibility. Now, let's set up Selenium. 12 (stable). Flask is a lightweight WSGI web application framework. This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. The environment variables for the primary container set some config specific to the Flask framework and set a database URL that references a database run in the circleci/postgres:9. User's Guide ¶ This part of the documentation will show you how to get started in using pytest-flask with your application. Flask-Caching is an extension to Flask that adds caching support for various backends to any Flask application. You could add a run script just for debugging, but that isn’t necessary. Independent of how you load your config, there is a config object available which holds the loaded configuration values: The config attribute of the Flask object. route('/test', methods=['GET', 'POST']) #allows only GET and POST. import endpoints. The Flask-Mail extension provides a simple interface to set up SMTP with your Flask application and to send messages from your views and scripts. 246s OK Name Stmts Miss Cover Missing-----flask_sso/__init__ 47 0 100% flask_sso/config 4 0 100% flask_sso/version 2 0 100%-----TOTAL 53 0 100% License ¶ Flask-SSO is free software; you can redistribute it and/or modify it under the terms of the Revised BSD License quoted below. 5-alpine-ram service container. py for Python files *. Unit tests. This means that we can have several configuration files in our repository and always load the right one. Initialize the extension. As Flask encourages the composition by overriding the config_class attribute this extension follows the patterns of Flask and turns your Flask's app. Flask is a fantastic micro web framework for Python, however, it is not a native web language. Testing with Flask-Injector. current_app. Next steps. FlaskClient (*args, **kwargs) ¶ Works like a regular Werkzeug test client but has some knowledge about how Flask works to defer the cleanup of the request context stack to the end of a with body when used in a with statement. You could add a run script just for debugging, but that isn’t necessary. Flask exposes the Werkzeug test client and handles the context locals. Besides, it's always good to acquaint yourself with other frameworks. Unit testing in Python works by combining assert statements into their own functions inside a class. Next, add a MySQL instance to your code:. Flask-Mail Extension. We have test, which fails. configuration file /etc/nginx/nginx. It provides a flexible mechanism to store the data in the database of your choice. pip install Flask-Mail Then Flask-Mail needs to be configured by setting values of the following application parameters. Unfortunately, Flask currently (as of May 2014) defaults to set the DEBUG configuration parameter to False. The code would run normally, but my test cases where failing with the following two errors:. ukIn this guide I'll show you a step by step approach for structuring a Flask RESTPlus web application for testing, development and production environments. Flask-Mail now provides signalling support through a email_dispatched signal. Server-side apps (for example: a catalog, content search and display, reservation site or most other interactive websites) use a framework to handle the details of the web network request, page display and database input/output -- while freeing the programmer to supply just the. It is assumed that you are using the Flask-SQLAlchemyextension, but if not the examples should not be too difficult to adapt to your own particular setup. I must admit I was quite surprised by the results – specifically, by the fact that using extra fans (one extra for the air cooler, two extra for the AIO) in a push/pull configuration made so. Flask-SocketIO gives Flask applications access to low latency bi-directional communications between the clients and the server. Typically refers to flask. Flask is a lightweight WSGI web application framework. I just ran into the pain-in-the-neck that is apache configuration. This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. If app argument provided then initialize redis connection using application config values. Supports Python Frameworks built on WSGI such as Flask, Bottle, and Pyramid. Initialize the FlaskDynaconf extension in your app. We need to configure database connection with flask module and that’s why we have imported app module and setup the MySQL configuration with flask module. It is meant to work with the authentication provided by packages such as Flask-Login or Flask-Security. You might put it directly in the app. This config has the syntax "@app. The value returned will be a list of named tuples with the following attributes: statement. Flaskr - Intro to Flask, Test-Driven Development, and JavaScript. The Lambda itself is one piece of this architecture; it is a function that can be invoked and can return a result. The Flask-Mail extension provides a simple interface to set up SMTP with your Flask application and to send messages from your views and scripts. A function connecting to the email_dispatched signal takes a Message instance as a first argument, and the Flask app instance as an optional argument:. js which is a new config format in Babel 7. ebignore file to avoid uploading of unwanted files. If you don’t want to enable the DEBUG mode for your unittests you can also enable the query recording by setting the 'SQLALCHEMY_RECORD_QUERIES' config variable to True. And for #2, the file is app/__init__,py. The environment variables set at Heroku must be defined locally. Flask is a fantastic micro web framework for Python, however, it is not a native web language. When you start Docker this way, it runs in the foreground and sends its logs directly to your terminal. Testing Apps That Use Flask-Dance¶ Automated tests are a great way to keep your Flask app stable and working smoothly. Configuration¶ Flask-Notifications only needs one parameter in the Flask configuration: BACKEND. When the test coverage is large you can have confidence that modifications and additions do not affect the application in a bad way just by running the tests. Initialize the extension. Something that is untested is broken, and that is why am writing on Testing flask applications using Pytest , although the origin of this quote is unknown and while it is not entirely correct, it is also not far from the truth. unittestEnabled as outlined here. Flask gives us the ability to choose a configuration file on load based on the value of an environment variable. Many thanks to Matt Wright for the inspiration and providing the shoulders to stand on. on_flask cd dash_on_flask touch. py to handle our Flask config: from os import environ class Config: """Set Flask configuration vars from. It is assumed that you are using the Flask-SQLAlchemy extension, but if not the examples should not be too difficult to adapt to your own particular setup. When you create your first admin user using flask fab command line, this user will be authenticated using the authentication method defined on your config. In Flask, we take care of the details of starting the app. The Flask object only requires one argument to initialize, the so-called import_name parameter. This tutorial takes a test-first approach to implementing token-based authentication in a Flask app using JSON Web Tokens (JWTs). config['TESTING']=True), this provider will generate a local JSON Web Key Set, containing a single key, which can be used to sign tokens with arbitrary scopes. py which allows configuration overriding for different contexts. py acts as a Flask configuration module, it can be used to alter the settings Flask itself, as well as Flask extensions like flask-wtf, flask-cache, flask-migrate, and flask-appbuilder. from flask import Flask from flask_restplus import Api app = Flask (__name__) app. He also manages many virtual servers for services offered by Midwestern Mac, LLC, and has been using Ansible to manage infrastructure since early 2013. py: This is the main configuration file, and should not be modified. conf to indicate that it is a configuration file. Below is the code for the from_pyfile method of the Config class, flask/config. Really wanted to run around screaming obscenities. Once we have several configuration files, we can move them to their own config directory. I think maybe there is a different way to create tables when I use flask-sqlalchemy, but I can't find the solution. from flask import Flask from flask_restplus import Api app = Flask (__name__) app. One of the most basic functions in a web application is the ability to send emails to your users. How to Design a Great API (using flask) [ploneconf2017] 1. Testing¶ Flask-JSON also may help in testing of your JSON API calls. cfg file are really important, especially the following: # Bcrypt algorithm hashing rounds (reduced for testing purposes only!). This configuration contains "module": "flask",, which tells VS Code to run Python with -m flask when it starts the debugger. In Flask, we take care of the details of starting the app. config['TESTING']=True), this provider will generate a local JSON Web Key Set, containing a single key, which can be used to sign tokens with arbitrary scopes. Flask is a very simple framework for writing server side applications with Python. This means there's no built-in database interaction, but the flask-sqlalchemy package will connect a SQL database to a Flask application. Flask is a very simple framework for writing server side applications with Python. Flask: Now that you have flask installed in your virtual environment you can start coding! Open up your favorite text editor and create a new file called hello. Aug 14, 2014. If you’re looking to deploy a model in production and you are interested in scalability, batching over users, versionning etc. In this article, we will. Set this to True to enable the test mode of Flask extensions (and in the future probably also Flask itself). Learn how to configure and secure a Working with Linux File Access Control Lists (FACLs). Supports Python Frameworks built on WSGI such as Flask, Bottle, and Pyramid. This is the place where Flask itself puts certain configuration values and also where extensions can put their configuration values. Dealing with 504 errors in flask applications (or, getting wsgi config right) The most common problem we see with flask apps is that people try and call app. A cookie will be saved on the user’s computer, and then Flask-Login will automatically restore the user ID from that cookie if it is not in the session. FlaskClient (application, response_wrapper=None, use_cookies=True, allow_subdomain_redirects=False) ¶ Works like a regular Werkzeug test client but has some knowledge about how Flask works to defer the cleanup of the request context stack to the end of a with body when used in a with statement. config_distro. Download python-flask-. The issue stemmed when I tried manually setting the headers Content-Type. Aug 14, 2014. I needed to start with a base image, so I picked CentOS 7: FROM centos:centos7. config['TESTING']=True), this provider will generate a local JSON Web Key Set, containing a single key, which can be used to sign tokens with arbitrary scopes. py文件中config字典,可以得到一个类,这个类里面定义的都是类变量,这些变量就是自定义的一些配置项。如下config. For the integration tests, we have to import the whole flask machinery (including config and test extensions) in the import section. Next, add a MySQL instance to your code:. This means that we can have several configuration files in our repository and always load the right one. Integrating your Flask application with behave is done via boilerplate code in your environment. But hold on a minute, young Padawan. We have test, which fails. Understanding Contexts in Flask. We can now keep our cookie from being stolen via XSS attacks, but have traded that for a vulnerability to CSRF attacks. Flask-MQTT plays nicely with the Flask-SocketIO extension. The focus of this post will be on building a backend REST API using the Python based Flask web framework. Testing Apps That Use Flask-Dance¶ Automated tests are a great way to keep your Flask app stable and working smoothly. First, create your flask. The previous article referenced several methods of the config object that load objects into the Flask configuration environment. Starting with Flask 0. unittestEnabled as outlined here. Flask-Limiter comes with three different rate limiting strategies built-in. 在应用上下文或 flask. You may also find useful example on file upload on different technologies. I have written before about Flask and obtaining test coverage results here and with an update here. Pick the one that works for your use-case by specifying it in your flask config as RATELIMIT_STRATEGY (one of fixed-window, fixed-window-elastic-expiry, or moving-window), or as a constructor keyword argument. You may need to use sudo, depending on your operating system configuration. Share on Twitter. g 上面,而在请求销毁时移除对象。试想一下例如下面的获 取当前用户的代码:. However, this preference can be altered by providing methods argument to route() decorator. Start by installing the extension with pip install flask-redis. Flask-RESTful also support setting the response code and response headers using multiple return values, as shown below:. py , right before the route handler, to view the app config to ensure that it is working: import sys print ( app. Flask-Mail extension makes it very easy to set up a simple interface with any email server. You need a Google Cloud Platform account to set up a Kubernetes Engine cluster. Add config details to. Flask-WebTest provides a set of utilities to ease testing Flask applications with WebTest. config['TESTING'] = True The above works just fine. test_client. methods=[])". env with this information: FLASK_CONFIG=heroku MAIL_USERNAME= MAIL_PASSWORD=. Really wanted to run around screaming obscenities. Flask is a Python-based micro web framework which allows you to write your web applications quickly and efficiently. from flask_sqlalchemy import SQLAlchemy db = SQLAlchemy() # define your models classes hereafter. config['CONFIG_NAME'] = 'config value' #import from an exported environment variable with a path to a config file. This is a project I setup to show the use the application factory pattern in Flask. This configuration contains "module": "flask",, which tells VS Code to run Python with -m flask when it starts the debugger. Generally you want to make sure that if you are doing an integration type of test that you are actually testing the same thing which means that the configuration must be as close to identical as you can make it. Unfortunately, Flask currently (as of May 2014) defaults to set the DEBUG configuration parameter to False. The main URL will still show you the NGINX default page but because uwsgi isn’t running now the Flask app will no longer be available on port 8000. Flask-Ask is a Flask extension that makes building voice user interfaces with the Alexa Skills Kit easy and fun. If app argument provided then initialize redis connection using application config values. You may need to use sudo, depending on your operating system configuration. Creating a Web App From Scratch Using Python Flask and MySQL: Part 2 In this series, we'll be using Python , Flask and MySQL to create a simple web application from scratch. Testing with SQLAlchemy¶. Flask-Caching¶. Docker-Compose: Getting Flask up and running Posted on March 29, 2017 by Ernst Haagsman A couple of issues were resolved in PyCharm 2017. For better testing of my application I’ll use Postman. It is assumed that you are using the Flask-SQLAlchemyextension, but if not the examples should not be too difficult to adapt to your own particular setup.