kampung-tech codewithgun

Key Points

In general, binaries built just for x86 architecture will automatically be run in x86 mode
You can force apps in Rosetta 2 / x86 mode by right-clicking app, click Get Info, check "Open using Rosetta"
You can force command-line apps by prefixing with arch -x86_64, for example arch -x86_64 go
Running a shell in this mode means you don't have to prefix commands: arch -x86_64 zsh then go or whatever
Don't just immediately install Homebrew as usual. It should most likely be installed in x86 mode.

Homebrew

Not all toolchains and libraries properly support M1 arm64 chips just yet. Although

Unable to connect Postgresql from client

There was several reasons causes client unable to connect to Postgres database.

First, run sudo systemctl status postgresql to check whether the database is running.

If the output shows status: active, it shows that the database is up and running. The problems might due to authentication, listening port, or firewall.

In Postgres, there was few type of authentication methods. However, most of the time, the authentication will be password authentication or local socket authentication.

Laravel local websocket

Customized authentication will be used in this gist instead of default Auth facade provided by Laravel

Create project

composer create-project laravel-laravel your-project-name
cd your-project-name

Install LevelDB for Laravel

Install LevelDB

You can install leveldb from repository

sudo apt-get install libleveldb-dev

	import AmmImpl, { MAINNET_POOL } from "@mercurial-finance/dynamic-amm-sdk";
	import { Connection, Keypair, PublicKey } from "@solana/web3.js";
	import { Wallet, AnchorProvider } from "@project-serum/anchor";
	import { TokenListProvider } from "@solana/spl-token-registry";
	import Decimal from "decimal.js";

	interface JupPriceResponse {
	data: {
	[address: string]: {
	id: String;

	use std::env;

	use anchor_client::anchor_lang::AccountDeserialize;
	use anyhow::Result;
	use base64::Engine;
	use futures::{SinkExt, StreamExt};
	use lb_clmm::state::position::PositionV2;
	use serde_json::{json, Value};
	use tokio_tungstenite::{connect_async, tungstenite::Message};

	function test_getFeeAmount() public {
	// Configuration was copied from BTC.b/USDC pair
	bytes32 params;
	uint16 binStep = 10;

	params = params.setStaticFeeParameters(10000, 30, 600, 5000, 40000, 1000, 350000);
	// Set volatility accumulator to the max
	params = params.setVolatilityAccumulator(350000);

	// 5900000000000000 => 0.59%

	import { createConnection, getConnection, Entity, getRepository } from "typeorm";
	import { PrimaryGeneratedColumn, Column } from "typeorm";

	@Entity()
	export class MyEntity {
	@PrimaryGeneratedColumn()
	id?: number;

	@Column()
	name?: string;

	{
	"printWidth": 180,
	"tabWidth": null,
	"useTabs": true,
	"semi": true,
	"singleQuote": true,
	"trailingComma": "all",
	"bracketSpacing": true,
	"arrowParens": "always"
	}

	/*
	In the node.js intro tutorial (http://nodejs.org/), they show a basic tcp
	server, but for some reason omit a client connecting to it. I added an
	example at the bottom.

	Save the following server in example.js:
	*/

	var net = require('net');