Not understanding quite how to structure a backend API (Cloudflare)

import { HttpApi, HttpApiEndpoint, HttpApiGroup, HttpApiSwagger, HttpServer } from '@effect/platform'
import { Layer, Schema } from 'effect'

// contract.ts
export class QuestionGroup extends HttpApiGroup.make('question')
    .add(
        HttpApiEndpoint.get('get-question', '/get/:id')
            .setPath(
                Schema.Struct({
                    id: Schema.NumberFromString,
                }),
            )
            .addSuccess(Schema.Unknown),
    )
    .prefix('/question') {}

import { FetchHttpClient, HttpClient } from '@effect/platform'
import { Console, Effect } from 'effect'

// service.ts
export class QuestionService extends Effect.Service<QuestionService>()('QuestionService', {
    effect: Effect.gen(function* () {
        const client = yield* HttpClient.HttpClient
        const url = (id: number) => `https://example.com/questions/${id}` // Replaced with generic URL

        const getById = Effect.fn('QuestionService.getById')(function* (id: number) {
            // Call client to get data with GET request and catch errors
            return yield* client.get(url(id)).pipe(
                Effect.andThen((response) => response.json),
                Effect.catchAll((error) => Console.log(error)),
            )
        })

        return { getById }
    }).pipe(Effect.provide(FetchHttpClient.layer)),
}) {}

import { HttpApiBuilder } from '@effect/platform'

export class DomainApi extends HttpApi.make('domain').add(QuestionGroup) {}
export const Api = HttpApi.make('api').addHttpApi(DomainApi)

// live.ts (implementation)
export const QuestionLive = HttpApiBuilder.group(Api, 'question', (handlers) => {
    return Effect.gen(function* () {
        const service = yield* QuestionService

        return handlers.handle('get-question', ({ path }) => service.getById(path.id))
    })
}).pipe(Layer.provide(QuestionService.Default))