tessl/pypi-flask

A simple framework for building complex web applications.

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Context and Globals

Name: tessl/pypi-flask
Author: tessl

Flask provides context management and global objects for accessing application and request data throughout the request lifecycle.

Capabilities

Context Management Functions

def has_app_context() -> bool:
    """Check if there is an active application context."""

def has_request_context() -> bool:
    """Check if there is an active request context."""

def copy_current_request_context(f: Callable) -> Callable:
    """Copy the current request context for use in a different thread."""

def after_this_request(f: Callable) -> Callable:
    """Register a function to run after the current request."""

Global Proxy Objects

current_app: LocalProxy  # Current Flask application
request: LocalProxy      # Current request object
session: LocalProxy      # Current session
g: LocalProxy           # Application context global object

Context Classes

class AppContext:
    """Application context for Flask applications."""
    
class RequestContext:
    """Request context for handling individual requests."""

Usage Examples

Basic Context Usage

from flask import Flask, current_app, request, g

app = Flask(__name__)

@app.before_request
def before_request():
    g.user_id = request.headers.get('X-User-ID')

@app.route('/context-info')
def context_info():
    return {
        'app_name': current_app.name,
        'request_method': request.method,
        'user_id': g.get('user_id')
    }

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