Dean 利迪恩 deanmlittle

Useful tools for Bitcoin

A collection of links to useful things I've used/built over time for Bitcoin development.

While it's an acceptable bandaid for now, we probably shouldn't just wrap JSON-RPC. It's really slow, and there's no reason to run an HTTP server that accesses another HTTP server. It's pretty silly tbh.
Nobody likes C#. Like, nobody.
You shouldn't have to go and install an entire postgres database in parallel to a mining node (both of which just love to compete with eachother to consume maximum resources) just to offer people different fee rates. If you had to do something like this, SQLite would be a much more lightweight alternative, however in almost all cases, miners will probably want to just run their own mining consoles (like any other kind of API service provider would) where they manage all this stuff themselves, so in reality, a simple JWT with an exp field, a fee field and a signing secret without any kind of user management whatsoever is probably already sufficient. If you have strong opinions to the contrary about thi

Create a valid8 folder in your path: mkdir ~/.local/share/valid8
Dump the metaplex program there: solana program dump -u m metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s ~/.local/share/valid8/metadata.so
Create bash script with sudo nano /usr/local/bin/metaplex-test-validator then paste in the following code and save: (if the /user/local/bin directory doesn't exist, you can create it using sudo mkdir -p -m 775 /usr/local/bin)

#!/bin/bash

	use anchor_lang::prelude::*;

	// This is your program's public key and it will update
	// automatically when you build the project.
	declare_id!("HAcYnZCEXGs31qKPXEJUEjPDBnxSLLL2CxSqp4zrpHze");

	#[program]
	mod plus_one {
	use super::*;
	pub fn initialize(ctx: Context<Initialize>) -> Result<()> {

	use anchor_lang::prelude::*;

	// This is your program's public key and it will update
	// automatically when you build the project.
	declare_id!("HL1HGm4o5ygkrMYcyS3WYLK3XXPVLyvp9bPksHQZUeWb");

	#[program]
	mod hello_anchor {
	use super::*;
	pub fn initialize(ctx: Context<Initialize>, _hash: Vec<u8>) -> Result<()> {

	const program = anchor.workspace.AnchorVault as Program<AnchorVault>;

	const connection = anchor.getProvider().connection;

	const signer = Keypair.generate();

	const vault = PublicKey.findProgramAddressSync([Buffer.from("vault"), signer.publicKey.toBuffer()], program.programId)[0];

	const confirm = async (signature: string): Promise<string> => {
	const block = await connection.getLatestBlockhash();

	use anchor_lang::{prelude::*, Discriminator};
	pub mod jupiter {
	use super::*;
	declare_id!("JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4");

	#[derive(AnchorDeserialize, AnchorSerialize)]
	pub struct SharedAccountsRoute {
	pub id: u8,
	pub route_plan: Vec<RoutePlanStep>,
	pub in_amount: u64,