eval.go

Overview

This source file defines the EvalAPIRouter struct and its associated method Routes(), which specifies HTTP routes related to evaluation functionalities within the application. The router maps URL endpoints to HTTP methods and handler functions used for managing evaluation sets and evaluation results. However, the actual handler implementations are placeholders marked as unimplemented in the linked controllers.

The file plays a role in the API routing layer, specifically for evaluation-related endpoints, and integrates with the REST API server by providing route definitions that the HTTP router can register and serve.

Types and Functions

EvalAPIRouter Struct

• Description:
  EvalAPIRouter is a struct type that encapsulates the routing configuration for evaluation API endpoints. It does not contain any fields, serving purely as a receiver for routing methods.

• Usage:
  An instance of EvalAPIRouter is used to retrieve the evaluation-related API routes which can be registered with the HTTP server mux/router.

(r *EvalAPIRouter) Routes() Routes

• Description:
  Returns a slice of Route structs defining the HTTP routes handled by the evaluation API. Each route includes the HTTP methods supported, the URL pattern, and the handler function.

• Return Type:
  Routes — a collection (slice) of Route objects.

• Details of Defined Routes:

  1. ListEvalSets (GET)

     • Path: /apps/{app_name}/eval_sets

     • Purpose: Intended to list all evaluation sets for a specific application.

     • Handler: controllers.Unimplemented (placeholder).

  2. ListEvalSets (POST, OPTIONS)

     • Path: /apps/{app_name}/eval_sets/{eval_set_name}

     • Purpose: Intended for actions on a specific evaluation set, possibly creation or update, though the exact behavior is unimplemented.

     • Handler: controllers.Unimplemented.

  3. ListEvalResults (GET)

     • Path: /apps/{app_name}/eval_results

     • Purpose: Intended to list evaluation results for a given application.

     • Handler: controllers.Unimplemented.

• Usage Example:

router := &EvalAPIRouter{}
routes := router.Routes()
// Register routes with HTTP server mux

• Note:
  The handlers are all set to controllers.Unimplemented, meaning that these endpoints currently do not provide functional implementations and act as stubs.

Implementation Details

• The routing setup uses a Routes type which is a collection of Route structs. Each Route includes:

  • Name: Identifier for the route.

  • Methods: HTTP verbs supported by the endpoint.

  • Pattern: URL path pattern with placeholders for path parameters (e.g., {app_name}, {eval_set_name}).

  • HandlerFunc: The function that handles requests for this route.

• The package imports the controllers package from google.golang.org/adk/server/adkrest/controllers, which contains HTTP handler implementations. Currently, only the Unimplemented handler is referenced, indicating that the real handlers are yet to be defined or are located elsewhere.

• The routes defined serve as part of the REST API layer, aligning with the REST API routing system described in REST API and Web Launchers and Router Setup.

Interaction with Other System Components

• Controllers Package:
  The handlers for these routes are intended to come from the controllers package, which contains HTTP handler implementations for the API endpoints. The current use of controllers.Unimplemented acts as a placeholder.

• Routing Infrastructure:
  This router integrates with the broader routing and server setup in the application, likely registering its routes with a mux/router such as gorilla/mux as described in Router Setup.

• API Layer:
  These routes correspond to the evaluation management features of the API, primarily focusing on evaluation sets and results, which would be part of the application logic layer related to evaluation workflows.

Diagram: EvalAPIRouter Route Structure

flowchart TD
EvalAPIRouter --> Routes
Routes --> Route1[ListEvalSets GET /apps/{app_name}/eval_sets]
Routes --> Route2[ListEvalSets POST, OPTIONS /apps/{app_name}/eval_sets/{eval_set_name}]
Routes --> Route3[ListEvalResults GET /apps/{app_name}/eval_results]
Route1 --> Handler1[controllers.Unimplemented]
Route2 --> Handler2[controllers.Unimplemented]
Route3 --> Handler3[controllers.Unimplemented]

This flowchart shows the EvalAPIRouter providing a collection of routes, each mapped to an unimplemented handler function from the controllers package.

References

• REST API and Web Launchers — For understanding the broader REST API server and routing framework.

• Router Setup — For details on how routing is structured and registered in the system.

• REST API Controllers — For context on HTTP handler implementations and controller responsibilities.