| 1 | import { DateTime, Effect, Layer, Redacted } from "effect" |
| 2 | import { Authorization, CurrentUser, Unauthorized } from "../api/Authorization.ts" |
| 3 | import { User, UserId } from "../domain/User.ts" |
| 4 | |
| 5 | const fixedTimestamp = DateTime.makeUnsafe("2026-01-01T00:00:00Z") |
| 6 | const devUser = new User({ |
| 7 | id: UserId.make("bf3dbe33-0ad2-4c9c-9c9e-733e57bdcbee"), |
| 8 | name: "Dev User", |
| 9 | email: "dev@acme.com", |
| 10 | createdAt: fixedTimestamp, |
| 11 | updatedAt: fixedTimestamp |
| 12 | }) |
| 13 | |
| 14 | // The implementation of the Authorization middleware. It is seperate from the |
| 15 | // service definition to avoid leaking it into a client. |
| 16 | export const AuthorizationLayer = Layer.effect( |
| 17 | Authorization, |
| 18 | Effect.gen(function*() { |
| 19 | // Here you could access services required by the middleware, like a |
| 20 | // database or an external auth provider. |
| 21 | yield* Effect.logInfo("Starting Authorization middleware") |
| 22 | |
| 23 | return Authorization.of({ |
| 24 | bearer: Effect.fn(function*(httpEffect, { credential }) { |
| 25 | // Validate the token and return an Unauthorized error if it's invalid. |
| 26 | const token = Redacted.value(credential) |
| 27 | if (token !== "dev-token") { |
| 28 | return yield* new Unauthorized({ message: "Missing or invalid bearer token" }) |
| 29 | } |
| 30 | |
| 31 | // Provide the current user to the rest of the stack. This will be |
| 32 | // available in any endpoint or middleware that runs after this one. |
| 33 | return yield* Effect.provideService(httpEffect, CurrentUser, devUser) |
| 34 | }) |
| 35 | }) |
| 36 | }) |
| 37 | ) |