8/9/2023 0 Comments Flask blueprint db![]() The route /list-html will serve a simple HTML. routes.py - the routing rules handled by the new Blueprint. Flask uses a concept of blueprints for making application components and supporting common patterns within an application or across applications. Steps: Create a new directory for the blueprint with files: init.py - declare the Blueprint. You'd move everything but manage.py into a subdirectory, with a project-appropriate name, and move application.py to _init_.py. This sample shows how to define a new blueprint and use it on top of an existing starter. Structuring Flask App using Blueprint Create a new folder resources inside mongo-bag and a new file movie.py inside. Note: Blueprint and Flask-restful are not a replacement for each other, they can co-exist in a single project. ![]() All modules in a single package are namespaced, kept separate from other top-level modules such as json and time and flask, so there won't be clashes when you want to use the same name for one of the additional modules in your project. Flask-restful: It is an extension for Flask that helps your build REST APIs quickly and following best practices. Since the blog needs to know about authentication, you’ll write the authentication one first. The code for each blueprint will go in a separate module. Explain what the MVC pattern is and why its useful Structure larger Flask applications using blueprints Refactor previous applications to use a more scalable. It'd be better if everything was moved into a package, giving you more freedom over what names you use. Flaskr will have two blueprints, one for authentication functions and one for the blog posts functions. One thing to note: here the views module is now a top-level module next to application.py. During the Postgres installation, an operating system user named postgres was created to correspond to the postgres PostgreSQL administrative user. Blueprints can share the same prefix, including having no prefix. Step 1 Creating the PostgreSQL Database and User In this step, you’ll create a database called flaskdb and a database user called sammy for your Flask application. It's the explicit import and app.register_blueprint() call that ties any of the blueprints used in a Flask project into the final app's routes. (I use a convention of using the bp variable name for all my blueprints, and then just importing the module and registering the module.bp attribute). So yes, creating a views.py module is a good organisational idea, but do create a Blueprint() there too, and register that blueprint in the create_app() function with the Flask() app instance.Īnd in create_app() in application.py, add import views However, since the package uses a create_app() app factory, you can't register those routes with an decorator the app is not created in a way you can just import. You can add additional routes anywhere you want. ![]()
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