Connect Apollo.io contacts and FTP CSV file in our serverless environment

class HttpSourceApolloIoSearchContacts {
    async init() {
        // TODO: Create your http credential with apollo.io information:
        // More info at https://yepcode.io/docs/integrations/http/#credential-configuration
        // baseUrl: https://api.apollo.io/v1/
        this.httpClient = yepcode.integration.http(
            "your-http-apollo-io-credential-name"
        );
    }

    async fetch(publish, done) {
        // TODO: Customize your request checking the API documentation:
        // https://apolloio.github.io/apollo-api-docs/#search-for-contacts
        const {
            data
        } = await this.httpClient.post("/contacts/search", {
            // TODO: You need to create a YepCode env var called `APOLLO_IO_API_KEY`
            api_key: yepcode.env.APOLLO_IO_API_KEY,
            q_keywords: "<contact-name>, <contact-title>, <contact-company>",
        });

        for (const contact in data.contacts) {
            await publish(contact);
        }

        done();
    }

    async close() {}
}

class SftpTargetUploadCsv {
    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");

        // Transform the items into a csv format
        this.stringifier = csv.stringify({
            delimiter: ",",
        });

        // TODO: Customize the remote directory where to load the csv file
        this.upload = this.sftp.put(
            this.stringifier,
            "/remoteDirPath/fileName.csv"
        );
    }

    async consume(item) {
        // TODO: Customize your csv row
        const csvRow = [item.id, item.name];
        this.stringifier.write(csvRow);
    }

    async close() {
        try {
            this.stringifier.end();
        } catch (error) {
            console.error(`Error ending stringifier`, error);
        }
        try {
            await this.upload;
        } catch (error) {
            console.error(`Error ending upload`, error);
        }
        try {
            await this.sftp.end();
        } catch (error) {
            console.error(`Error ending sftp`, error);
        }
    }
}