Connect Azure Blob CSV file and Google Storage NDJSON file in our serverless environment

class AzureBlobSourceReadRemoteCsv {
    async init() {
        // More info at https://docs.microsoft.com/en-us/azure/storage/blobs/storage-quickstart-blobs-nodejs
        // TODO: Create team variables. More info at https://yepcode.io/docs/processes/team-variables
        this.azureBlob = BlobServiceClient.fromConnectionString(
            yepcode.env.AZURE_BLOB_CONNECTION_STRING
        );
    }

    async fetch(publish, done) {
        // TODO: customize the container name and blob name to download
        // // More info at https://docs.microsoft.com/en-us/javascript/api/@azure/storage-blob/blobserviceclient?view=azure-node-latest#@azure-storage-blob-blobserviceclient-getcontainerclient
        const containerClient = this.azureBlob.getContainerClient("container-name");
        const blobClient = containerClient.getBlobClient("blob-name");
        const result = await blobClient.download();

        // result.readableStreamBody is a stream of object content
        result.readableStreamBody
            .pipe(
                csv.parse({
                    delimiter: ",",
                    columns: true,
                })
            )
            .on("data", publish)
            .on("end", done);
    }

    async close() {}
}

class GoogleStorageTargetUploadNdjson {
    async init() {
        // More info at https://www.npmjs.com/package/@google-cloud/storage
        // TODO: Create team variables. More info at https://yepcode.io/docs/processes/team-variables
        const googleStorage = new Storage({
            projectId: yepcode.env.GOOGLE_STORAGE_PROJECT_ID,
            credentials: JSON.parse(yepcode.env.GOOGLE_STORAGE_SERVICE_ACCOUNT_JSON),
        });
        // TODO: Customize your bucket name
        const bucket = googleStorage.bucket(yepcode.env.GOOGLE_STORAGE_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();
    }
}