Initial commit

This commit is contained in:
GooeyTuxedo 2023-04-17 18:49:20 -07:00
commit a87549dfcd
17 changed files with 1079 additions and 0 deletions

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logs/
.git*
*.md
.cache

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.DS_Store
# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
lerna-debug.log*
.pnpm-debug.log*
# Diagnostic reports (https://nodejs.org/api/report.html)
report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
# Runtime data
pids
*.pid
*.seed
*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
*.lcov
# nyc test coverage
.nyc_output
# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# Snowpack dependency directory (https://snowpack.dev/)
web_modules/
# TypeScript cache
*.tsbuildinfo
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional stylelint cache
.stylelintcache
# Microbundle cache
.rpt2_cache/
.rts2_cache_cjs/
.rts2_cache_es/
.rts2_cache_umd/
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variable files
.env
.env.development.local
.env.test.local
.env.production.local
.env.local
# parcel-bundler cache (https://parceljs.org/)
.cache
.parcel-cache
# Next.js build output
.next
out
# Nuxt.js build / generate output
.nuxt
dist
# Gatsby files
.cache/
# Comment in the public line in if your project uses Gatsby and not Next.js
# https://nextjs.org/blog/next-9-1#public-directory-support
# public
# vuepress build output
.vuepress/dist
# vuepress v2.x temp and cache directory
.temp
.cache
# Docusaurus cache and generated files
.docusaurus
# Serverless directories
.serverless/
# FuseBox cache
.fusebox/
# DynamoDB Local files
.dynamodb/
# TernJS port file
.tern-port
# Stores VSCode versions used for testing VSCode extensions
.vscode-test
# yarn v2
.yarn/cache
.yarn/unplugged
.yarn/build-state.yml
.yarn/install-state.gz
.pnp.*
# build files
dist/

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FROM node:18-slim as ts-compiler
WORKDIR /usr/app
COPY package*.json ./
COPY tsconfig*.json ./
# RUN apt update \
# && apt install build-essential python3 libsqlite3-dev -y
RUN npm install
COPY . ./
RUN npm run build
FROM node:18-slim as ts-remover
WORKDIR /usr/app
COPY --from=ts-compiler /usr/app/package*.json ./
COPY --from=ts-compiler /usr/app/dist ./
# RUN apt update \
# && apt install build-essential python3 libsqlite3-dev sqlite3 -y
# RUN npm install --build-from-source --sqlite=/usr/bin --omit=dev
RUN npm install --omit=dev
FROM node:18-slim
WORKDIR /usr/app
COPY --from=ts-remover /usr/app ./
COPY .env ./
# RUN apt update \
# && apt install libsqlite3-dev sqlite3 -y
CMD node index.js

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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it is allowed as long as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

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# gwei-alert-bot

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version: '3'
services:
redis:
image: redis
restart: always
volumes:
- ./data:/data
command: redis-server --save 900 1 --appendonly yes
environment:
- REDIS_REPLICATION_MODE=master
- REDIS_APPENDONLY=yes
- REDIS_SAVE=900 1
gwei-alert-bot:
build: .
container_name: gwei-alert-bot
working_dir: /usr/app
dns:
- 1.1.1.1
environment:
- NODE_ENV=production
restart: unless-stopped

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{
"name": "gwei-alert-bot",
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21
package.json Normal file
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{
"name": "gwei-alert-bot",
"version": "0.0.1",
"description": "Discord bot for monitoring EVM gas fees",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "MrTuxedo",
"license": "WTFPL",
"dependencies": {
"discord.js": "^14.9.0",
"dotenv": "^16.0.3",
"redis": "^4.6.5",
"web3": "^0.20.7"
},
"devDependencies": {
"@types/dotenv": "^8.2.0",
"@types/redis": "^4.0.11"
}
}

37
src/blockchain.ts Normal file
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import 'dotenv/config.js';
import { GasPrices } from '../types/gasPrices'
const Web3 = require('web3');
const rpcUrl = process.env.RPC_URL || 'ws://localhost:8545';
// Create a new web3 instance
const web3 = new Web3(rpcUrl);
// Get the current gas price in gwei
const getGasPricesInGwei = async (): Promise<GasPrices> => {
const gweiFromWei = (priceInWei: string): number =>
Number(web3.utils.fromWei(priceInWei, 'gwei').toFixed(2));
try {
const [fastPrice, averagePrice, slowPrice] = await Promise.all([
web3.eth.getGasPrice(),
web3.eth.getGasPrice('average'),
web3.eth.getGasPrice('slow'),
]);
const gasPrices = {
fast: gweiFromWei(fastPrice),
average: gweiFromWei(averagePrice),
slow: gweiFromWei(slowPrice),
};
return Promise.resolve(gasPrices);
// await redisClient.set('gas-prices', JSON.stringify(gasPrices));
} catch (error) {
console.error(`Error fetching gas prices: ${error}`);
return Promise.reject(error);
}
};
// Export the getCurrentGasPrice function
export { getGasPricesInGwei };

37
src/commands/gas.ts Normal file
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import { SlashCommandBuilder, ChatInputCommandInteraction } from 'discord.js';
import { handleGasAlertCommand, handleGasCommand, handleGasPendingCommand } from '../handlers';
module.exports = {
data: new SlashCommandBuilder()
.setName('gas')
.setDescription('Set alerts for GWEI')
.addSubcommand(subcommand =>
subcommand
.setName('pending')
.setDescription('List your current alert threshhold'))
.addSubcommand(subcommand =>
subcommand
.setName('alert')
.setDescription('List your current alert threshhold')
.addStringOption(option =>
option.setName('gwei')
.setDescription('gwei threshold')
.setRequired(true))),
async execute(interaction: ChatInputCommandInteraction) {
const subcommand = interaction.options.getSubcommand();
if (subcommand == 'pending' ) {
console.log(`Replying to command "/gas pending"`)
return await handleGasPendingCommand(interaction);
} else if (subcommand == 'gwei') {
return await handleGasAlertCommand(interaction);
} else {
return await handleGasCommand(interaction);
}
}
};

38
src/gasPriceChecker.ts Normal file
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import { Client, EmbedBuilder, TextChannel } from 'discord.js';
import { getGasPricesInGwei } from './blockchain';
import redisClient from './redis';
import { GasAlert } from '../types/gasAlert';
const createGasPriceChecker = (client: Client) => {
setInterval(async () => {
try {
const gasPrices = await getGasPricesInGwei();
const gasAlerts: GasAlert[] = await redisClient
.get('gas-alerts')
.then((value) => (value ? JSON.parse(value) : []));
gasAlerts.forEach(async (gasAlert) => {
if (gasPrices.fast <= gasAlert.threshold) {
const channel = await client.channels.fetch(gasAlert.channelId) as TextChannel;
const user = await client.users.fetch(gasAlert.userId);
channel.send({
embeds: [
new EmbedBuilder()
.setTitle('Gas price alert!')
.setDescription(`<@${gasAlert.userId}>!\n\nThe current gas prices have fallen below your alert threshold of ${gasAlert.threshold} Gwei. The current gas prices are: \n\n Fast: ${gasPrices.fast} Gwei \n\n Average: ${gasPrices.average} Gwei \n\n Slow: ${gasPrices.slow} Gwei`)
.setColor('#FF8C00')
],
target: user
})
}
});
} catch (error) {
console.error(`Error checking gas prices: ${error}`);
}
}, 15000);
};
export { createGasPriceChecker };

50
src/handlers.ts Normal file
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import { ChatInputCommandInteraction, EmbedBuilder } from 'discord.js';
import redisClient from './redis';
import { getGasPricesInGwei } from './blockchain';
import { GasAlert } from '../types/gasAlert';
// Respond to the "/gas" command
const handleGasCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
console.log(`Replying to command "/gas"`);
const gasPrices = await getGasPricesInGwei();
const embed = new EmbedBuilder()
.setColor('#0099ff')
.setTitle('Current Gas Prices')
.setDescription(`The current gas prices are: \n\n Fast: ${gasPrices.fast} Gwei \n\n Average: ${gasPrices.average} Gwei \n\n Slow: ${gasPrices.slow} Gwei`)
await interaction.reply({ embeds: [embed] });
};
// Respond to the "/gas alert ${gwei}" command
const handleGasAlertCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
const threshold = parseInt(interaction.options.getString('gwei')!);
const channelId = interaction.channelId;
const userId = interaction.user.id;
const gasAlert: GasAlert = { threshold, channelId, userId };
console.log(`Replying to command "/gas gwei ${threshold}"`);
await redisClient.hSet('gas-alerts', `${userId}`, JSON.stringify(gasAlert));
await interaction.reply(`Your gas alert threshold of ${threshold} Gwei has been set.`);
};
// Respond to the "/gas pending" command
const handleGasPendingCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
const userId = interaction.user.id;
const alertThreshold = await redisClient.get(`${userId}`);
console.log(`Replying to command "/gas pending"`);
if (alertThreshold === null) {
await interaction.reply('No gas price alerts set');
} else {
await interaction.reply(`Current gas price alert threshold: ${alertThreshold} Gwei`);
}
};
export { handleGasCommand, handleGasAlertCommand, handleGasPendingCommand };

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src/index.ts Normal file
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import 'dotenv/config.js';
import fs from 'node:fs';
import path from 'node:path';
import { ApplicationCommand, Client, Collection, GatewayIntentBits, REST, Routes } from 'discord.js';
import { createGasPriceChecker } from './gasPriceChecker';
const clientId = process.env.DISCORD_CLIENT || "";
const token = process.env.DISCORD_BOT_TOKEN || "";
export class DiscordClient extends Client {
public commands: Collection<string, any> = new Collection();
}
// Create a new Discord client
const client = new DiscordClient({ intents: [GatewayIntentBits.Guilds, GatewayIntentBits.GuildMessages] });
const commands: ApplicationCommand[] = [];
const commandsPath = path.join(__dirname, 'commands');
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));
for (const file of commandFiles) {
const filePath = path.join(commandsPath, file);
const command = require(filePath);
// Set a new item in the Collection with the key as the command name and the value as the exported module
if ('data' in command && 'execute' in command) {
commands.push(command.data.toJSON())
client.commands.set(command.data.name, command);
} else {
console.log(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
}
}
const eventsPath = path.join(__dirname, 'events');
const eventFiles = fs.readdirSync(eventsPath).filter(file => file.endsWith('.js'));
for (const file of eventFiles) {
const filePath = path.join(eventsPath, file);
const event = require(filePath);
if (event.once) {
client.once(event.name, (...args) => event.execute(...args));
} else {
client.on(event.name, (...args) => event.execute(...args));
}
}
console.log('Booting up discord bot')
// Log in to Discord
client.login(process.env.DISCORD_BOT_TOKEN)
.then(async () => {
console.log(`Started refreshing ${commands.length} global application (/) commands.`);
// Construct and prepare an instance of the REST module
const rest = new REST({ version: '10' }).setToken(token);
// The put method is used to fully refresh all commands in the guild with the current set
const data = await rest.put(
Routes.applicationCommands(clientId),
{ body: commands },
) as ApplicationCommand[];
console.log(`Successfully reloaded ${data.length} global application (/) commands.`);
})
.then(() => {
// Start the gas price checker
createGasPriceChecker(client);
});

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src/redis.ts Normal file
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import Redis from 'redis';
// Create a new Redis client
const client = Redis.createClient({
url: 'redis://redis:6379'
});
// Log any Redis errors to the console
client.on('error', (error) => {
console.error(error);
});
// Export the Redis client
export default client;

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tsconfig.json Normal file
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{
"compilerOptions": {
"module": "commonjs",
"target": "es6",
"noImplicitAny": true,
"outDir": "dist",
"strict": true,
"typeRoots": ["./types"],
"allowSyntheticDefaultImports": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true
},
"include": [
"src/**/*.ts"
]
}

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types/gasAlert.d.ts vendored Normal file
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export interface GasAlert {
threshold: number;
channelId: string;
userId: string;
}

5
types/gasPrices.d.ts vendored Normal file
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export interface GasPrices {
fast: number;
average: number;
slow: number;
}