Connect Oracle and Send WhatsApp messages with template using Vonage API in our serverless environment

class OracleSourceSelect {
    async init() {
        // TODO: Create your oracle credential
        // More info at https://yepcode.io/docs/integrations/oracle/#credential-configuration
        const oraclePool = await yepcode.integration.oracle(
            "your-oracle-credential-name"
        );
        this.connection = await oraclePool.getConnection();
    }

    async fetch(publish, done) {
        const stream = this.connection
            // TODO: Customize your sql query
            .queryStream(`SELECT * FROM your_table_name`);
        stream.on("data", async (row) => {
            // TODO: map your row to an item
            const item = {
                ...row
            };

            await publish(item);
        });
        stream.on("error", (error) => {
            throw error;
        });
        stream.on("end", () => stream.destroy());
        stream.on("close", done);
    }

    async close() {
        await this.connection.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.httpClient = yepcode.integration.http(
            "your-http-vonage-credential-name"
        );
    }

    async consume(item) {
        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";

        // TODO: Customize your request checking the API documentation:
        // https://developer.vonage.com/messages/code-snippets/whatsapp/send-mtm
        await this.httpClient.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() {}
}