Connect FTP NDJSON file and Supabase NDJSON file 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 SupabaseTargetUploadNdjson {
    async init() {
        // TODO: Create your supabase credential
        // More info at https://yepcode.io/docs/integrations/supabase/#credential-configuration
        this.supabase = yepcode.integration.supabase(
            "your-supabase-credential-name"
        );

        this.items = [];
    }

    async consume(item) {
        this.items.push(item);
        this.stringifier.write(item);
    }

    async close() {
        try {
            // Transform items to ndjson entries
            const ndjsonFileContent = ndjson.stringify(this.items);
            // TODO: adapt bucket and files management
            // You may check the full API documentation at:
            // Check docs at https://supabase.com/docs/reference/javascript/storage-from-upload
            const {
                data,
                error
            } = await this.supabase.storage
                .from("your-bucket-name")
                .upload(`your-new-file.ndjson`, ndjsonFileContent, {
                    contentType: "text/ndjson",
                });

            if (error) {
                throw error;
            }
        } catch (error) {
            console.error(`Error ending upload`, error);
        }
    }
}