Function scoped

repos/effect/packages/effect/src/unstable/http/HttpEffect.ts:160–170

(effect: Effect.Effect<A, E, R>)

const scopeEjected = Symbol.for("effect/http/HttpEffect/scopeEjected")

const scoped = <A, E, R>(effect: Effect.Effect<A, E, R>) =>
  Effect.withFiber((fiber) => {
    const scope = Scope.makeUnsafe()
    const prevServices = fiber.context
    fiber.setContext(Context.add(fiber.context, Scope.Scope, scope))
    return Effect.onExitPrimitive(effect, (exit) => {
      fiber.setContext(prevServices)
      if (scopeEjected in scope) return undefined
      return Scope.closeUnsafe(scope, exit)
    }, true)
  })

/**
 * Function run with the current request and response just before the response is sent, allowing the response to be replaced or failing with `HttpServerError`.