Connect Azure Blob CSV file and Send WhatsApp messages with template using Vonage API in our serverless environment

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

    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 HttpTargetVonageSendWhatsappTemplate {
    async init() {
        // TODO: Create your http credential with Vonage information:
        // More info at https://yepcode.io/docs/integrations/http/#credential-configuration
        // baseUrl: https://messages-sandbox.nexmo.com/v1
        // username: your-vonage-api-key
        // password: your-vonage-api-secret
        this.axiosClient = yepcode.integration.http(
            "your-http-vonage-credential-name"
        );
    }

    async consume(item) {
        // TODO: Customize your request checking the API documentation:
        // https://developer.vonage.com/messages/code-snippets/whatsapp/send-mtm

        const WHATSAPP_NUMBER = "14157386204"; // The WhatsApp number that has been allocated to you by Vonage.
        const WHATSAPP_TEMPLATE_NAMESPACE = "9b6b4fcb_da19_4a26_8fe8_78074a91b584";
        const WHATSAPP_TEMPLATE_NAME = "verify";
        await this.axiosClient.post("/messages", {
            from: WHATSAPP_NUMBER,
            to: item.to,
            message_type: "template",
            channel: "whatsapp",
            whatsapp: {
                policy: "deterministic",
                locale: "en-GB",
            },
            template: {
                name: `${WHATSAPP_TEMPLATE_NAMESPACE}:${WHATSAPP_TEMPLATE_NAME}`,
                parameters: ["YepCode verification", "64873", 10],
            },
        });
    }

    async close() {}
}