book

Flask Web Development

by Miguel Grinberg

May 2014

Intermediate to advanced

258 pages

5h 42m

English

O'Reilly Media, Inc.

Read now

Unlock full access

Who This Book Is ForHow This Book Is OrganizedHow to Work with the Example Code Using Code ExamplesConventions Used in This BookSafari® Books OnlineHow to Contact UsAcknowledgments
Using Virtual EnvironmentsInstalling Python Packages with pip
Initialization Routes and View FunctionsServer StartupA Complete ApplicationThe Request-Response CycleApplication and Request ContextsRequest Dispatching Request HooksResponsesFlask ExtensionsCommand-Line Options with Flask-Script
The Jinja2 Template Engine Rendering Templates Variables Control StructuresTwitter Bootstrap Integration with Flask-Bootstrap Custom Error PagesLinksStatic Files Localization of Dates and Times with Flask-Moment
Cross-Site Request Forgery (CSRF) Protection Form ClassesHTML Rendering of Forms Form Handling in View FunctionsRedirects and User SessionsMessage Flashing
SQL Databases NoSQL Databases SQL or NoSQL?Python Database FrameworksDatabase Management with Flask-SQLAlchemy Model Definition Relationships Database OperationsCreating the Tables Inserting Rows Modifying Rows Deleting Rows Querying Rows Database Use in View FunctionsIntegration with the Python Shell Database Migrations with Flask-Migrate Creating a Migration Repository Creating a Migration ScriptUpgrading the Database
Email Support with Flask-Mail Sending Email from the Python ShellIntegrating Emails with the ApplicationSending Asynchronous Email
Project StructureConfiguration OptionsApplication PackageUsing an Application Factory Implementing Application Functionality in a Blueprint Launch Script Requirements File Unit Tests Database Setup

Authentication Extensions for FlaskPassword Security Hashing Passwords with Werkzeug Creating an Authentication Blueprint User Authentication with Flask-Login Preparing the User Model for LoginsProtecting Routes Adding a Login Form Signing Users InSigning Users OutTesting LoginsNew User RegistrationAdding a User Registration FormRegistering New UsersAccount ConfirmationGenerating Confirmation Tokens with itsdangerousSending Confirmation EmailsAccount Management
Database Representation of RolesRole AssignmentRole Verification
Profile InformationUser Profile PageProfile EditorUser-Level Profile EditorAdministrator-Level Profile EditorUser Avatars
Blog Post Submission and DisplayBlog Posts on Profile PagesPaginating Long Blog Post ListsCreating Fake Blog Post DataRendering Data on PagesAdding a Pagination WidgetRich-Text Posts with Markdown and Flask-PageDownUsing Flask-PageDownHandling Rich Text on the ServerPermanent Links to Blog PostsBlog Post Editor
Database Relationships Revisited Many-to-Many RelationshipsSelf-Referential RelationshipsAdvanced Many-to-Many RelationshipsFollowers on the Profile PageQuery Followed Posts Using a Database Join Show Followed Posts on the Home Page
Database Representation of CommentsComment Submission and DisplayComment Moderation
Introduction to REST Resources Are EverythingRequest MethodsRequest and Response Bodies Versioning RESTful Web Services with Flask Creating an API Blueprint Error Handling User Authentication with Flask-HTTPAuth Token-Based Authentication Serializing Resources to and from JSON Implementing Resource Endpoints Pagination of Large Resource Collections Testing Web Services with HTTPie
Obtaining Code Coverage Reports The Flask Test Client Testing Web Applications Testing Web Services End-to-End Testing with Selenium Is It Worth It?
Logging Slow Database Performance Source Code Profiling
Deployment Workflow Logging of Errors During Production Cloud Deployment The Heroku Platform Preparing the ApplicationCreating a Heroku accountInstalling the Heroku Toolbelt Creating an applicationProvisioning a databaseConfiguring logging Configuring email Running a production web server Adding a requirements file Adding a Procfile Testing with Foreman Enabling Secure HTTP with Flask-SSLify Deploying with git push Reviewing Logs Deploying an UpgradeTraditional HostingServer SetupImporting Environment Variables Setting Up Logging
Using an Integrated Development Environment (IDE) Finding Flask ExtensionsGetting Involved with Flask

Overview

Take full creative control of your web applications with Flask, the Python-based microframework. With this hands-on book, you’ll learn Flask from the ground up by developing a complete social blogging application step-by-step. Author Miguel Grinberg walks you through the framework’s core functionality, and shows you how to extend applications with advanced web techniques such as database migration and web service communication.