Connect FTP NDJSON file and RabbitMQ in our serverless environment

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

    async fetch(publish, done) {
        // TODO: Customize your ndjson file path to download
        const stream = new PassThrough();
        stream
            .pipe(ndjson.parse())
            .on("data", async (line) => {
                await publish(line);
            })
            .on("end", done);

        // TODO: Customize the ndjson file location
        await this.sftp.get("/remoteDirPath/fileName.ndjson", stream);
    }

    async close() {
        await this.sftp.end();
    }
}

class AmqpTargetRabbitmqSendMessage {
    async init() {
        // TODO: Create your rabbitmq credential
        // More info at https://yepcode.io/docs/integrations/amqp/#credential-configuration
        this.conn = await yepcode.integration.amqp("your-amqp-credential-name");
        this.channel = await this.conn.createChannel();
    }

    async consume(item) {
        // TODO: Customize your queue name and message
        const queue = "tasks";
        const message = `The message content is: ${JSON.stringify(item)}`;
        this.channel.sendToQueue(queue, Buffer.from(message));
    }

    async close() {
        try {
            await this.channel.close();
        } catch (error) {
            console.error(`Error closing channel`, error);
        }
        try {
            await this.conn.close();
        } catch (error) {
            console.error(`Error closing connection`, error);
        }
    }
}