tessl/pypi-flask

A simple framework for building complex web applications.

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Files

Signals

Name: tessl/pypi-flask
Author: tessl

Flask provides a signals system for hooking into the application lifecycle and request processing events.

Capabilities

Signal Objects

template_rendered: NamedSignal
before_render_template: NamedSignal
request_started: NamedSignal
request_finished: NamedSignal
request_tearing_down: NamedSignal
got_request_exception: NamedSignal
appcontext_tearing_down: NamedSignal
appcontext_pushed: NamedSignal
appcontext_popped: NamedSignal
message_flashed: NamedSignal

Usage Examples

Basic Signal Usage

from flask import Flask
from flask.signals import request_started

app = Flask(__name__)

def log_request(sender, **extra):
    print(f"Request started for {sender.name}")

request_started.connect(log_request, app)

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