Effect CommunityEC
Effect Community•12mo ago
kristo

Wrapping Promise-based API Clients into Effect Services in TypeScript

Does anyone have a good pattern for wrapping promise-based API clients into Effect services?

import { LinearClient } from "@linear/sdk";
import { Config, Effect } from "effect";

export class Linear extends Effect.Service<Linear>()("Linear", {
  effect: Effect.gen(function* () {
    const apiKey = yield* Config.string("LINEAR_API_KEY");
    const client = new LinearClient({
      apiKey: apiKey,
    });

    return client;
  }),
}) {}

This will generate a Linear client, but I'd like to convert all the client's methods to Effect.Effect<A, LinearError, never>. I tried mapping over Object.entries(client) but struggled with types and such. Just curious if anyone has an existing pattern they like? Or if there is an Effect.effectify for this use case?
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