85 lines
2.7 KiB
Markdown
85 lines
2.7 KiB
Markdown
```
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Menu = Imp/Introduction
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Title = Quart-Imp Introduction
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```
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Quart-Imp is a Quart extension that provides auto import methods for various Quart resources. It will import
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blueprints, and other resources. It uses the importlib module to achieve this.
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Quart-Imp favors the application factory pattern as a project structure, and is opinionated towards using
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Blueprints. However, you can use Quart-Imp without using Blueprints.
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Here's an example of a standard Quart-Imp project structure:
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```text
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app/
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├── blueprints/
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│ ├── admin/...
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│ ├── api/...
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│ └── www/...
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├── resources/
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│ ├── filters/...
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│ ├── context_processors/...
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│ ├── static/...
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│ └── templates/...
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└── __init__.py
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```
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Here's an example of the `app/__init__.py` file:
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```python
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from quart import Quart
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from quart_sqlalchemy import SQLAlchemy
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from quart_imp import Imp
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from quart_imp.config import QuartConfig, ImpConfig
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db = SQLAlchemy()
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imp = Imp()
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def create_app():
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app = Quart(__name__)
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QuartConfig(
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secret_key="super_secret_key",
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app_instance=app,
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)
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imp.init_app(app, config=ImpConfig(
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init_session={"logged_in": False},
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))
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imp.import_app_resources("resources")
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imp.import_blueprints("blueprints")
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db.init_app(app)
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return app
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```
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The Quart configuration can be loaded from any standard Quart configuration method, or from the `QuartConfig` class
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shown above.
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This class contains the standard Quart configuration options found in the Quart documentation.
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The `ImpConfig` class is used to configure the `Imp` instance.
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The `init_session` option of the `ImpConfig` class is used to set the initial session variables for the Quart app.
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This happens before the request is processed.
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`ImpConfig` also has the ability to set `SQLALCHEMY_DATABASE_URI` and `SQLALCHEMY_BINDS`
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For more information about the configuration setting see
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[quart_imp_config-impconfig.md](quart_imp_config-impconfig.html).
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`import_app_resources` will walk one level deep into the `resources` folder, and import
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all `.py` files as modules.
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It will also check for the existence of a `static` and `templates` folder, and register them with the Quart app.
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There is a couple of options for `import_app_resources` to control what
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is imported, see: [Imp / import_app_resources](imp-import_app_resources.html)
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`import_blueprints` expects a folder that contains many Blueprint as Python packages.
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It will check each blueprint folder's `__init__.py` file for an instance of a Quart Blueprint or a
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Quart-Imp Blueprint. That instant will then be registered with the Quart app.
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See more about how importing blueprints work here: [ImpBlueprint / Introduction](impblueprint-introduction.html)
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