register_blueprint() — flask Function Reference

Architecture documentation for the register_blueprint() function in app.py from the flask codebase.

Function python ApplicationCore Scaffolding calls 1 called by 1

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ApplicationCore→ Scaffolding→ register_blueprint() — flask Function Reference

Dependency Diagram

graph TD
  4e097242_324c_5d02_a967_41ca85d1f371["register_blueprint()"]
  38f6d4a2_834e_2acd_e1b6_f45c58079ccd["App"]
  4e097242_324c_5d02_a967_41ca85d1f371 -->|defined in| 38f6d4a2_834e_2acd_e1b6_f45c58079ccd
  fed3f3dd_fb9c_9cc0_fcd6_bb40208b8981["register_blueprint()"]
  fed3f3dd_fb9c_9cc0_fcd6_bb40208b8981 -->|calls| 4e097242_324c_5d02_a967_41ca85d1f371
  fed3f3dd_fb9c_9cc0_fcd6_bb40208b8981["register_blueprint()"]
  4e097242_324c_5d02_a967_41ca85d1f371 -->|calls| fed3f3dd_fb9c_9cc0_fcd6_bb40208b8981
  style 4e097242_324c_5d02_a967_41ca85d1f371 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/flask/sansio/app.py lines 567–592

    def register_blueprint(self, blueprint: Blueprint, **options: t.Any) -> None:
        """Register a :class:`~flask.Blueprint` on the application. Keyword
        arguments passed to this method will override the defaults set on the
        blueprint.

        Calls the blueprint's :meth:`~flask.Blueprint.register` method after
        recording the blueprint in the application's :attr:`blueprints`.

        :param blueprint: The blueprint to register.
        :param url_prefix: Blueprint routes will be prefixed with this.
        :param subdomain: Blueprint routes will match on this subdomain.
        :param url_defaults: Blueprint routes will use these default values for
            view arguments.
        :param options: Additional keyword arguments are passed to
            :class:`~flask.blueprints.BlueprintSetupState`. They can be
            accessed in :meth:`~flask.Blueprint.record` callbacks.

        .. versionchanged:: 2.0.1
            The ``name`` option can be used to change the (pre-dotted)
            name the blueprint is registered with. This allows the same
            blueprint to be registered multiple times with unique names
            for ``url_for``.

        .. versionadded:: 0.7
        """
        blueprint.register(self, options)