Skip to content

Instantly share code, notes, and snippets.

View LanfordCai's full-sized avatar
:octocat:
Focusing

lanford33 LanfordCai

:octocat:
Focusing
View GitHub Profile
@endrsmar
endrsmar / index.ts
Created January 9, 2024 12:11
Raydium new pool listener
import { LiquidityPoolKeysV4, MARKET_STATE_LAYOUT_V3, Market, TOKEN_PROGRAM_ID } from "@raydium-io/raydium-sdk";
import { Connection, Logs, ParsedInnerInstruction, ParsedInstruction, ParsedTransactionWithMeta, PartiallyDecodedInstruction, PublicKey } from "@solana/web3.js";
const RPC_ENDPOINT = 'https://api.mainnet-beta.solana.com';
const RAYDIUM_POOL_V4_PROGRAM_ID = '675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8';
const SERUM_OPENBOOK_PROGRAM_ID = 'srmqPvymJeFKQ4zGQed1GFppgkRHL9kaELCbyksJtPX';
const SOL_MINT = 'So11111111111111111111111111111111111111112';
const SOL_DECIMALS = 9;
const connection = new Connection(RPC_ENDPOINT);

This is unmaintained, please visit Ben-PH/spacemacs-cheatsheet

Useful Spacemacs commands

  • SPC q q - quit
  • SPC w / - split window vertically
  • SPC w - - split window horizontally
  • SPC 1 - switch to window 1
  • SPC 2 - switch to window 2
  • SPC w c - delete current window
@rbobbins
rbobbins / protocols.md
Last active June 11, 2024 22:11
Notes from "Protocol-Oriented Programming in Swift"

PS: If you liked this talk or like this concept, let's chat about iOS development at Stitch Fix! #shamelessplug

Protocol-Oriented Programming in Swift

Speaker: David Abrahams. (Tech lead for Swift standard library)

  • "Crusty" is an old-school programmer who doesn't trust IDE's, debuggers, programming fads. He's cynical, grumpy.

  • OOP has been around since the 1970's. It's not actually new.

  • Classes are Awesome

    • Encapsulation
    • Access control
func encode<T>(var value: T) -> NSData {
return withUnsafePointer(&value) { p in
NSData(bytes: p, length: sizeofValue(value))
}
}
func decode<T>(data: NSData) -> T {
let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
data.getBytes(pointer)
@ne-sachirou
ne-sachirou / http2_study_client.ex
Created May 27, 2014 07:38
Try to implement HTTP2 client in Elixir.
defmodule Http2StudyClient do
@moduledoc """
http2study
"""
@doc "GET HTTP/2.0"
def get domain, port do
{:ok, sock} = :gen_tcp.connect domain, port, [:binary, {:packet, 0}]
try do
{:ok, data} = send_connection_preface sock