PATCH Request

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import {
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  FetchHttpClient,
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  HttpClient,
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  HttpClientRequest,
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} from "effect/unstable/http";
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import { Effect } from "effect";
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function updateProductPrice(productId: number, newPrice: number) {
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  return Effect.gen(function* () {
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    const client = yield* HttpClient.HttpClient;
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    // Only send the field we want to change
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    const request = HttpClientRequest.patch(
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      `https://dummyjson.com/products/${productId}`,
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    ).pipe(HttpClientRequest.bodyJsonUnsafe({ price: newPrice }));
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    const response = yield* client.execute(request);
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    const data = yield* response.json;
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    return data;
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  }).pipe(Effect.provide(FetchHttpClient.layer));
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}
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// Test it — update only the price of product 1
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Effect.runPromise(updateProductPrice(1, 5.99)).then((data) => {
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  console.log("Product:", data.title);
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  console.log("New price:", `$${data.price}`);
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});

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Product: Essence Mascara Lash Princess
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New price: $5.99