1. npm install.

2. Create .env file

3. Download mongoDB if it's necessary and then run it.

4. npm run start

1. CLOUDINARY_CLOUD_NAME=
2. CLOUDINARY_API_KEY=
3. CLOUDINARY_API_SECRET=
4. PORT=5000
5. MONGOURI=mongodb://localhost/estate
6. SECRET=
7. NODEMAILER_USER=
8. NODEMAILER_PASS=
9. NODEMAILER_HOST=
10. NODEMAILER_PORT=

CLOUDINARY params you can get after registration on the cloudinary.com. To run email confirmation you need to enter gmail data in NODEMAILER_USER and NODEMAILER_PASS and only then follow the link https://support.google.com/mail/answer/7126229?hl=ru and pass data in NODEMAILER_HOST and NODEMAILER_PORT