effect-packages

Useful Effect libraries

Packages

• effect-lambda: Effect-friendly AWS Lambda wrappers and utilities.
• effect-oauth-client: OAuth 2.0 Client Credentials HttpClient wrapper for @effect/platform.

effect-lambda quickstart

import { toLambdaHandler } from "effect-lambda/RestApi"
import { Effect, Layer } from "effect"

export const handler = toLambdaHandler(
  Effect.succeed({ statusCode: 200, body: "ok" })
)({ layer: Layer.empty })

effect-oauth-client quickstart

import { OAuthClient } from "effect-oauth-client"
import { Effect, Redacted } from "effect"
import { FetchHttpClient } from "@effect/platform"

const program = Effect.gen(function* () {
  const client = yield* OAuthClient.make({
    clientId: "my-client-id",
    clientSecret: Redacted.make("my-secret"),
    tokenUrl: "https://auth.example.com/oauth/token",
  })
  yield* client.get("https://api.example.com/secret-foo").pipe(Effect.scoped)
})

Effect.runPromise(program.pipe(Effect.provide(FetchHttpClient.layer)))

Development

• pnpm new <package-name> to create a new package
• After making changes, run pnpm pack:check to verify the package is built correctly
• Create a new branch
• Create a changeset with pnpm changeset choose package(s) and bump type, write summary
• git add .changeset && git commit -m "chore: changeset" && git push
• Happy days!