Connect Remote CSV file and Send email in our serverless environment

class HttpSourceReadRemoteCsv {
    async init() {
        // TODO: Create your http credential with endpoint information:
        // More info at https://yepcode.io/docs/integrations/http/#credential-configuration
        // It may manage headers or authentication
        this.httpClient = yepcode.integration.http("your-http-credential-name");
    }

    async fetch(publish, done) {
        // TODO: Customize the path to the csv file
        await this.httpClient
            .get("/the-csv-file-path.csv", {
                responseType: "stream",
            })
            .then(({
                data
            }) => {
                data
                    .pipe(
                        csv.parse({
                            trim: true,
                            columns: true,
                            delimiter: ",",
                            skip_empty_lines: true,
                        })
                    )
                    .on("data", async (line) => {
                        // TODO: Map your item
                        const item = {
                            id: line.Index,
                            name: line.Name
                        };
                        await publish(item);
                    })
                    .on("end", done);
            });
    }

    async close() {}
}

class SmtpTargetSendEmail {
    async init() {
        // TODO: Create your smtp credential
        // More info at https://yepcode.io/docs/integrations/smtp/#credential-configuration
        this.smtp = yepcode.integration.smtp("your-smtp-credential-name");
        this.items = [];
    }

    async consume(item) {
        // we save the items for later
        this.items.push(item);
        // we could send a mail per item here if we want to
    }

    async close() {
        // we want to send a resume mail so we send it at the end
        // TODO: Customize email content
        const text = `Here are the items we got:
    ${this.items.map((item) => ` * ${item.id}: ${item.name}`).join("\n")}`;
        // TODO: Customize email params: from, to and subject
        await this.smtp.sendMail({
            from: "your-email@example.com",
            to: "the-target@example.com",
            subject: `Choose your subject`,
            text,
        });
    }
}