@aws-amplify/graphql-api-construct/node_modules/@smithy/core/dist-es/util-identity-and-auth/httpAuthSchemes/httpBearerAuth.js

AppSync GraphQL Api Construct using Amplify GraphQL Transformer.

import { HttpRequest } from "@smithy/protocol-http";
export class HttpBearerAuthSigner {
    async sign(httpRequest, identity, signingProperties) {
        const clonedRequest = HttpRequest.clone(httpRequest);
        if (!identity.token) {
            throw new Error("request could not be signed with `token` since the `token` is not defined");
        }
        clonedRequest.headers["Authorization"] = `Bearer ${identity.token}`;
        return clonedRequest;
    }
}