nodejs security best prectices https://blog.sqreen.com/nodejs-security-best-practices/ link of api testing using jest and supertest https://www.rithmschool.com/courses/intermediate-node-express/api-tests-with-jest how to ignore files and folders https://www.freecodecamp.org/news/gitignore-file-how-to-ignore-files-and-folders-in-git/