Connect FTP NDJSON file and Microsoft SQL Server 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 MssqlTargetInsert {
    async init() {
        // TODO: Create your mssql credential
        // More info at https://yepcode.io/docs/integrations/mssql/#credential-configuration
        const mssqlConnectionPool = yepcode.integration.mssql(
            "your-mssql-credential-name"
        );
        this.pool = await mssqlConnectionPool.connect();
    }

    async consume(item) {
        // TODO: Customize input params and INSERT statement
        await this.pool
            .request()
            .input("name", mssql.VarChar(50), item.name)
            .input("price", mssql.Int, item.price)
            .input("stock", mssql.Int, item.stock)
            .query(
                "INSERT INTO products(name, price, stock, created_at) VALUES(@name, @price, @stock, CURRENT_TIMESTAMP)"
            );
    }

    async close() {
        await this.pool.close();
    }
}