AWS AppSync is a managed GraphQL service that:
A unified GraphQL API means combining disparate backend services (DBs, REST APIs, third-party services) behind a single GraphQL schema—hiding complexity from clients.
import graphql from '@aws-amplify/api';
test('getProduct returns product', async () => const res = await client.graphql( query:appsync unified debquery GetProduct($id: ID!) getProduct(id: $id) name price, variables: id: 'prod_1' ); expect(res.data.getProduct.name).toBeDefined(); );
type Product @aws_api_key @aws_cognito_user_pools id: ID! name: String! price: Float! inventoryStatus: String @aws_lambdatype Order @aws_cognito_user_pools id: ID! total: Float! paymentIntentSecret: String # from Stripe Lambda AWS AppSync is a managed GraphQL service that:
type Query getProduct(id: ID!): Product myOrders: [Order]
type Mutation createOrder(productId: ID!): OrderA unified GraphQL API means combining disparate backend
Here:
The Fix: This dependency error means your jailbreak is missing basic system links. Install the package "Core Utilities" and "Darwin Tools" from your default repository before installing AppSync.