Package com.google.genkit.core.middleware

package com.google.genkit.core.middleware
Middleware support for Genkit Java.

This package provides a middleware pattern implementation for wrapping action execution with pre-processing and post-processing logic. Middleware can be used for:

  • Logging and monitoring
  • Request/response transformation
  • Caching
  • Rate limiting
  • Retry logic
  • Validation
  • Error handling

Example usage: 

 
 // Create a middleware chain
 MiddlewareChain<String, String> chain = new MiddlewareChain<>();
 chain.use(CommonMiddleware.logging("myAction"));
 chain.use(CommonMiddleware.retry(3, 100));

 // Execute with middleware
 String result = chain.execute(input, context, (ctx, req) -> {
 	// Actual action logic
 	return "Hello, " + req;
 });
See Also:
  • Class
    Description
    CommonMiddleware
    CommonMiddleware provides factory methods for creating commonly-used middleware functions.
    Middleware<I,O>
    Middleware is a function that wraps action execution, allowing pre-processing and post-processing of requests and responses.
    MiddlewareCache<V>
    MiddlewareCache is a simple cache interface for use with caching middleware.
    MiddlewareChain<I,O>
    MiddlewareChain manages a list of middleware and provides execution of the complete chain.
    MiddlewareNext<I,O>
    MiddlewareNext represents the next function in the middleware chain.
    SimpleCache<V>
    SimpleCache is a thread-safe in-memory cache implementation for use with caching middleware.