Node.js and Express Typescript NoSQL and MongoDB Blocking and Non-Blocking Basic Server with Express Typescript in detail SQL vs NoSQL Mongoose

1. TOOLING SKILLS
MUHAMMED ASIM YILDIZ

3. Topics
• Node.js and Express
• Typescript
• NoSQL and MongoDB

4. NODE.JS and Express

5. Node.js
• Server side Javascript
• Platform build on Chrome’s v8 JS Engine
• Lightweight
• Event-driven (Non-blocking)
• Can handle thousands of connectios

6. Blocking and Non-Blocking

7. Blocking and Non-Blocking

8. Blocking and Non-Blocking

9. A Basic Server

10. Express
• Express is a lightweight framework on top of ‘connect’ module
• Request / Response enhancements
• Routing
• View Support
• Content Negotiation

11. Express Basic Server

12. TYPESCRIPT

13. Typescript
• Typescript is a typed superset of Javascript
• Compiles into plain Javascript code
• Typescript adds Static Typing and structuring (class, module) to
Javascript
• For large and complex applications

14. Typescript
• The idea is to help in large scale Javascript application development
• Typescript is Javascript
• Open Source
• Borrows ideas from ES6 Harmony

15. Typescript Features
• Type Annotation / Static Typing
• Type Inference

16. Typescript Features
• Types for function parameters, return type, rest parameters etc.

17. Typescript Features
• Classes

18. Typescript Features
• Inheritance

19. Typescript Features
• Modules

20. Typescript Features
• Interface

21. NOSQL and MongoDB

22. SQL vs NoSQL
• SQL is the standard language for Relational Databases.
• MySQL, Oracle, MsSQL, Sybase etc.
• NoSQL is a non-relational database management system.
• MongoDB, Redis, Cassandra etc.

23. Differences

24. When to use SQL
• SQL is the easiest language used to communicate with the RDBMS
• Preferred when you want to use joins and execute complex queries

25. When to use NoSQL
• When data needs a flexible schema
• Constraints and validations logic not required inside database
• Logging data from distributed sources
• It should be used to store temporary data (shopping carts, wish list
session data)

26. Popularity

27. Example Data

28. Example Queries
• {borough:"Bronx"}
• {borough:{$eq:"Bronx"}}
• {borough:{$ne:"Bronx"}}
• {borough:"Bronx", cuisine:"Bakery"}
• {$or:[{"borough": "Bronx"}, {"cuisine":"Japanese"}]}
• {name: /^Deli/}
• {"address.coord": {$gt:41}}
• {"address.coord":{$gte:41, $lte:-60}}

29. Mongoose
• Mongoose provides a straight-forward, schema-based solution to
model the application data for Node.js
• It includes built-in
• Type casting
• Validation
• Query building
• Business logic hooks

30. Mongoose

32. THANK YOU