Arpit Mathur arpit

Basic HTTP

The Client Server Model

The core working of the internet is based on the idea of client / server communication. The client is anything close to the user (a web browser, an app, a terminal with ssh) and a server that can respond to client queries.

Clients can talk to servers via a variety of protocols. The protocols are just a way for the client and server to agree on how to send data back and forth. Its like you and I talking. We can agree that we use English and with a friend of mine I can use Hindi.

Different Client / Server protocols include:

HTTP

Skills

Follow the Rabbit: Verify the code path
Understand the state machine
Learn the nomenclature: What exactly is:
- Class, Method, variable, constant, Module
- Design Pattern, Algorithm, Data Structure
  - Program = Data Structures + Logic / Code
- Polymorphism, idempotency
How do you learn new ideas? Whats one new idea you learnt this week?
Patience, Persistence, Concentration, Communication

Etherium talk:

3 languages used to write small contracts

Solidity : like js <- most developed compiles to the Etherium byte code that is run on Eth VM Another: Viper

Consys guys created a framework for Eth apps called Truffle

Best way to share javascript code? Create your own npm module

Android:

AI enabled copy paste, on device neural networks (TensorFlowLite)
Picture in Picture
Autofill API
Vital: Improving battery life / core services
Kotlin support
Kotlin Foundation
Instant apps open to all
Android Go: Rethinking android for third world: Lighter apps, slimmer OS, data compression, api for network operators to manage usage/payments (top up)

git push heroku `git subtree split --prefix tutorbotapiservice master`:master

(add --force if needed)

Setting up your device

On Android, Chrome make sure WebVR flags and GameController flags are turned on in chrome://flags

Local Dev:

Download AFrame boilerplate
Download nGrok to allow http access to localhost

Debugging:

Use cntrl+alt+i to bring up the visual inspector

0x3D143E0450Eb9A450846bb7b861F46D15B156D07

	class Man < Animal
	def get_name
	@name
	end
	end

	Man.new = m
	m.get_name

	(.*?)$
	//Note the space at the beginning

	^[A-Za-z]+