Cẩm Huỳnh qcam

Keybase proof

I hereby claim:

I am qcam on github.
I am qcam (https://keybase.io/qcam) on keybase.
I have a public key whose fingerprint is 7EAD EE10 DB51 9180 986A 30B4 1BE7 CEA2 28E5 28A9

To claim this, I am signing this object:

Functional Programming

Week 1

Programming Paradigms

Main programming paradigms include:

Imperative Programming

What's gRPC?

In gRPC a client application can directly call methods on a server application on a different machine as if it was a local object, making it easier for you to create distributed applications and services. As in many RPC systems, gRPC is based around the idea of defining a service, specifying the methods that can be called remotely with their parameters and return types. On the server side, the server implements this interface and runs a gRPC server to handle client calls. On the client side, the client has a stub (referred to as just a client in some languages) that provides the same methods as the server.

gRPC clients and servers can communicate no matter what programming languages they're written in. For instance, you can easily create gRPC servers in C++ and clients in Ruby/Python.

Transport and Semantics

gRPC uses (Protocol Buffers, aka. Protobuf)(https://github.com/google/protobuf), for data serialization.

	require "msgpack"

	class DateTimeExtension
	def self.unpack(data)
	case data.size
	when 4
	seconds = data.unpack("N")[0]
	Time.at(seconds).utc

	when 8

	defmodule GCounter.Node do
	use GenServer

	def start_link(node_name) do
	GenServer.start_link(__MODULE__, node_name, [name: node_name])
	end

	@impl true
	def init(node_name) do
	init_counter = %{node_name => 0}

	[
	{
	"source": "quan-cam.com",
	"url": "https://quan-cam.com/rss",
	"category": "personal"
	},
	{
	"source": "medium.com/@hqc",
	"url": "https://medium.com/feed/@hqc",
	"category": "personal"

	defmodule RFC822 do
	import NimbleParsec

	day =
	choice([
	string("Mon"),
	string("Tue"),
	string("Wed"),
	string("Thu"),
	string("Fri"),

	<?xml version="1.0" encoding="UTF-8"?>
	<breakfast_menu>
	<food>
	<name>Belgian Waffles</name>
	<price>$5.95</price>
	<description>Two of our famous Belgian Waffles with plenty of real maple syrup</description>
	<calories>650</calories>
	</food>
	<food>
	<name>Strawberry Belgian Waffles</name>

	# Place your file in ~/.config/hub
	github.com:
	- user: huynhquancam
	oauth_token: XXX # personal token can be obtained from your Github > Settings > Security > Personal Token