Connect Mailchimp and Azure Blob NDJSON file in our serverless environment

class HttpSourceMailchimpListEmailSuscribers {
    async init() {
        // TODO: Create your http credential with mailchimp information:
        // More info at https://yepcode.io/docs/integrations/http/#credential-configuration
        // Official docs: https://mailchimp.com/developer/marketing/api/
        this.httpClient = yepcode.integration.http(
            "your-mailchimp-credential-name"
        );
    }

    async fetch(publish, done) {
        // TODO: Set your query workflow id and your workflow email id.
        // More info at https://mailchimp.com/developer/marketing/api/automation-email-queue/list-automated-email-subscribers/
        const workflowId = "<your-workflow-id>";
        const workflowEmailId = "<your-workflow-email-id>";
        const suscriptions = await this.httpClient.get(
            `/automations/${workflowId}/emails/${workflowEmailId}/queue`
        );
        for (const suscription of suscriptions.queue) {
            await publish(suscription);
        }
        done();
    }

    async close() {}
}

class AzureBlobTargetUploadNdjson {
    async init() {
        // TODO: Create your azure blob credential
        // More info at https://yepcode.io/docs/integrations/azure-blob/#credential-configuration
        const azureBlob = yepcode.integration.azureBlob(
            "your-azure-blob-credential-name"
        );

        // TODO: customize the container name and blob name to upload
        // // 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 = azureBlob.getContainerClient("container-name");
        const blockBlobClient = containerClient.getBlockBlobClient("blob-name");

        // Transforms the items into a ndjson format
        this.stringifier = ndjson.stringify();
        this.upload = blockBlobClient.uploadStream(this.stringifier);

    }

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

    async close() {
        try {
            this.stringifier.end();
        } catch (error) {
            console.error(`Error ending stringifier`, error);
        }
        try {
            await this.upload;
        } catch (error) {
            console.error(`Error ending upload`, error);
        }
    }
}