Module filter 

Request filtering module that provides composable request filters.

This module implements a filter system that allows you to:

• Filter requests based on HTTP methods
• Filter requests based on headers
• Combine multiple filters using AND/OR logic
• Create custom filters using closures

Thread Safety

All filters must implement the Filter trait, which requires Send + Sync. This ensures that filters can be safely shared and used across threads, which is essential for concurrent request handling in a web server environment.

Examples

use micro_web::router::filter::{all_filter, any_filter, get_method, header};

// Create a filter that matches GET requests
let get_filter = get_method();

// Create a filter that checks for specific header
let auth_filter = header("Authorization", "Bearer token");

// Combine filters with AND logic
let mut combined = all_filter();
combined.and(get_filter).and(auth_filter);

Structs

AllFilter

Compose filters with AND logic.

AnyFilter

Compose filters with OR logic.

FalseFilter

A filter that always returns false.

HeaderFilter

A filter that matches HTTP headers.

MethodFilter

A filter that matches HTTP methods.

TrueFilter

A filter that always returns true.

Traits

Filter

Core trait for request filtering.

Functions

all_filter

Creates a new AND-composed filter chain.

any_filter

Creates a new OR-composed filter chain.

connect_method

Creates a filter that matches HTTP CONNECT requests.

delete_method

Creates a filter that matches HTTP DELETE requests.

false_filter

Creates a filter that always returns false.

filter_fn

Creates a new filter from a closure.

get_method

Creates a filter that matches HTTP GET requests.

head_method

Creates a filter that matches HTTP HEAD requests.

header

Creates a filter that matches a specific header name and value.

options_method

Creates a filter that matches HTTP OPTIONS requests.

patch_method

Creates a filter that matches HTTP PATCH requests.

post_method

Creates a filter that matches HTTP POST requests.

put_method

Creates a filter that matches HTTP PUT requests.

trace_method

Creates a filter that matches HTTP TRACE requests.

true_filter

Creates a filter that always returns true.