GraphQL

Source: src/AWS/AppSync/GraphQL.ts

Runtime binding for the appsync:GraphQL data-plane action — execute GraphQL operations against a GraphqlApi’s endpoint from a Lambda (or other AWS runtime), SigV4-signed with the host Function’s IAM role.

The API must accept AWS_IAM authentication (as its primary mode or an additional provider). Provide AppSync.GraphQLHttp on the hosting function’s Effect to implement the binding.

Executing GraphQL Operations

const api = yield* AppSync.GraphqlApi("Api", {
  authenticationType: "AWS_IAM",
  schema,
});
const graphql = yield* AppSync.GraphQL(api);

const result = yield* graphql.execute<{ add: number }>({
  query: "query($a: Int!, $b: Int!) { add(a: $a, b: $b) }",
  variables: { a: 2, b: 3 },
});
// result.data?.add === 5; field errors appear on result.errors