Connect Dremio and Send email in our serverless environment

class HttpSourceDremioSelect {
    async init() {
        // TODO: Create your http credential with dremio information:
        // More info at https://yepcode.io/docs/integrations/http/#credential-configuration
        // Official docs: https://docs.dremio.com/cloud/reference/api/
        this.httpClient = yepcode.integration.http("your-dremio-credential-name");
    }

    async fetch(publish, done) {
        // TODO: Customize your select query
        // Double-quotation marks within a SQL statement need to be escaped
        const query = 'SELECT * FROM path_to_your_dataset."your_dataset_name"';

        // Use the SQL API to submit queries. The response contains the ID for the job associated with the SQL query
        // Official docs: https://docs.dremio.com/cloud/reference/api/sql
        const projectId = "<your-dremio-project-id>";
        const {
            data: job
        } = this.httpClient.post(`${projectId}/sql`, {
            sql: query,
        });

        // Use the Job API to check the job status. Jobs final status are COMPLETED, FAILED and CANCELED
        // Official docs: https://docs.dremio.com/cloud/reference/api/job/
        const finalJobStates = ["COMPLETED", "FAILED", "CANCELED"];
        let jobInfoResponse = null;
        do {
            jobInfoResponse = await this.httpClient.get(
                `${this.projectId}/job/${job.id}`
            );
        } while (!finalJobStates.includes(jobInfoResponse.data.jobState));

        const {
            data: jobInfo
        } = jobInfoResponse;

        // When the job is finished, if it's been completed, get the result from Job Results endpoint
        // Official docs: https://docs.dremio.com/cloud/reference/api/job/job-results/
        // Otherwise, show the job status
        if (jobInfo.jobState === "COMPLETED") {
            const {
                data: result
            } = await this.httpClient.get(
                `${this.projectId}/job/${job.id}/results`
            );
            publish(result.rows);
        } else if (jobInfo.jobState === "FAILED") {
            publish(`Uups! Something was wrong: ${jobInfo.errorMessage}`);
        } else {
            publish(`The job's been cancelled: ${jobInfo.cancellationReason}`);
        }

        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,
        });
    }
}