ProductService

productService

interface ProductService {
  getProductByID(productId: string): Promise<Product | null>;
  getProductByHandle(handle: string): Promise<Product | null>;
  getProductMetaFields(
    productId: string,
    metaFields: string[]
  ): Promise<MetaFieldDetails>;
}

interface Product {
  id: string;
  name: string;
  vendor: string;
  collectionIDs: string[];
  tags: string[];
  discountPercentage: number;
  thumbnail: string | null;
  metaFields(keys: string[]): object;
  getMetaFields(keys: string[]): Promise<unknown>;
}

const product = await productService.getProductByID(
  "gid://shopify/Product/123"
);

if (product) {
  console.log(product.name);
}

const product = await productService.getProductByHandle("my-product-handle");

const metafields = await productService.getProductMetaFields(
  "gid://shopify/Product/123",
  ["custom.material", "custom.care"]
);

type MetaFieldDetails = Record<string, Record<string, MetafieldValue>>;

type MetafieldValue =
  | boolean
  | number
  | string
  | object
  | MetaFieldMedia
  | MetaFieldMedia[]
  | string[]
  | object[]
  | MetaObject
  | MetaObject[]
  | null;