Connect GraphQL and Google Storage NDJSON file in our serverless environment

class GraphqlSourceQuery {
    async init() {
        // TODO: Create your graphql credential
        // More info at https://yepcode.io/docs/integrations/graphql/#credential-configuration
        this.graphQLClient = yepcode.integration.graphql(
            "your-graphql-credential-name"
        );
    }

    async fetch(publish, done) {
        // TODO: Customize your graphql query
        await this.graphQLClient
            .request(
                gql`
          query yourQueryName($someParam: Number!) {
            yourQueryName(someParam: $someParam) {
              someField
              someOtherField
            }
          }
        `, {
                    someParam: 10
                }
            )
            .then(async (data) => {
                // publish each JSON object in array
                for (const item of data) {
                    await publish(item);
                }
            });
        done();
    }

    async close() {}
}

class GoogleStorageTargetUploadNdjson {
    async init() {
        // TODO: Create your google-storage credential
        // More info at https://yepcode.io/docs/integrations/google-storage/#credential-configuration
        const googleStorage = yepcode.integration.googleStorage(
            "your-google-storage-credential-name"
        );
        // TODO: Customize your bucket name
        const bucket = googleStorage.bucket("your-bucket-name");
        // TODO: choose a destination file
        const blob = bucket.file(`one-folder/my-filename-${Date.now()}.ndjson`);
        const ws = blob.createWriteStream({
            metadata: {
                contentType: "text/ndjson",
            },
        });

        // Transforms the items into a ndjson format
        this.stringifier = ndjson.stringify();
        this.stringifier.pipe(ws);
    }

    async consume(item) {
        this.stringifier.write(item);
    }

    async close() {
        this.stringifier.end();
    }
}