works and runs, need readme
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cea18e6a5f
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@ -2,8 +2,6 @@ FROM node:18-slim as ts-compiler
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WORKDIR /usr/app
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COPY package*.json ./
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COPY tsconfig*.json ./
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# RUN apt update \
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# && apt install build-essential python3 libsqlite3-dev -y
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RUN npm install
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COPY . ./
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RUN npm run build
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@ -12,15 +10,10 @@ FROM node:18-slim as ts-remover
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WORKDIR /usr/app
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COPY --from=ts-compiler /usr/app/package*.json ./
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COPY --from=ts-compiler /usr/app/dist ./
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# RUN apt update \
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# && apt install build-essential python3 libsqlite3-dev sqlite3 -y
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# RUN npm install --build-from-source --sqlite=/usr/bin --omit=dev
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RUN npm install --omit=dev
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FROM node:18-slim
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WORKDIR /usr/app
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COPY --from=ts-remover /usr/app ./
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COPY .env ./
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# RUN apt update \
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# && apt install libsqlite3-dev sqlite3 -y
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CMD node index.js
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@ -1,7 +1,9 @@
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import 'dotenv/config.js';
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import { GasPrices } from '../types/gasPrices'
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import Web3 from 'web3';
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import { GasPrices } from '../types/gasPrices'
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import redisClient from './redis';
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const rpcUrl = process.env.RPC_URL || 'ws://localhost:8545';
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// Create a new web3 instance
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@ -14,34 +16,46 @@ const web3 = new Web3(new Web3.providers.WebsocketProvider(rpcUrl, {
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}
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}));
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// Get the current gas price in gwei
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async function getGasPrice() {
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const gasPrice = await web3.eth.getGasPrice();
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export const subToBlockHeaders = (setDiscordStatus: () => Promise<void>) => {
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web3.eth.subscribe('newBlockHeaders', (error, blockHeader) => {
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if (error) console.error(error);
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// Set status every 10 blocks
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const shouldSetStatus = blockHeader.number % 10 === 0;
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// Get the gas price for this block
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web3.eth.getGasPrice((error, gasPrice) => {
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if (error) console.error(error);
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console.log('Gas price in wei:', gasPrice);
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redisClient.set('gas-price', Math.round(Number(gasPrice)))
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});
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if (shouldSetStatus) setDiscordStatus()
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});
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}
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const gweiFromWei = (priceInWei: number): number =>
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Math.round(Number(web3.utils.fromWei(`${Math.round(priceInWei)}`, 'gwei')));
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const getGasPrice = async (): Promise<number> => {
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const gasPrice = await redisClient.get('gas-price');
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return Number(gasPrice);
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}
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const getGasPricesInGwei = async (): Promise<GasPrices> => {
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const gweiFromWei = (priceInWei: number): number =>
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Number(web3.utils.fromWei(`${Math.round(priceInWei)}`, 'gwei'));
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const gasPrice = await getGasPrice()
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const fastPrice = gasPrice * 1.1;
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const slowPrice = gasPrice * 0.9;
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const gasPrices = {
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fast: gweiFromWei(fastPrice),
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average: gweiFromWei(gasPrice),
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slow: gweiFromWei(slowPrice),
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};
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try {
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const gasPrice = await getGasPrice()
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const fastPrice = gasPrice * 1.2;
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const slowPrice = gasPrice * 0.8;
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const gasPrices = {
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fast: gweiFromWei(fastPrice),
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average: gweiFromWei(gasPrice),
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slow: gweiFromWei(slowPrice),
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};
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return Promise.resolve(gasPrices);
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// await redisClient.set('gas-prices', JSON.stringify(gasPrices));
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} catch (error) {
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console.log(error);
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return Promise.reject(error);
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}
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return gasPrices;
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};
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// Export the getCurrentGasPrice function
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export { getGasPricesInGwei };
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12
src/commands/deleteAlert.ts
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12
src/commands/deleteAlert.ts
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@ -0,0 +1,12 @@
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import { SlashCommandBuilder, ChatInputCommandInteraction } from 'discord.js';
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import { handleAlertDeleteCommand } from '../handlers';
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module.exports = {
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data: new SlashCommandBuilder()
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.setName('alert-delete')
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.setDescription('Remove your gwei alert threshold'),
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async execute(interaction: ChatInputCommandInteraction) {
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return await handleAlertDeleteCommand(interaction);
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}
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}
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@ -23,8 +23,6 @@ const rest = new REST({ version: '10' }).setToken(token);
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// and deploy your commands!
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export const deployCommands = async () => {
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try {
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console.log(`Started refreshing ${commands.length} global application (/) commands.`);
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// The put method is used to fully refresh all commands in the guild with the current set
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const data = await rest.put(
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Routes.applicationCommands(clientId),
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@ -1,7 +1,8 @@
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import { EmbedBuilder, TextChannel } from 'discord.js';
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import { getGasPricesInGwei } from './blockchain';
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import redisClient from './redis';
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import { DiscordClient } from './discordClient';
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import redisClient from './redis';
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import { GasAlert } from '../types/gasAlert';
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@ -11,8 +12,8 @@ const createGasPriceChecker = (client: DiscordClient) => {
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const gasPrices = await getGasPricesInGwei();
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const gasAlerts: GasAlert[] = await redisClient
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.get('gas-alerts')
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.then((value) => (value ? JSON.parse(value) : []));
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.hVals('gas-alerts')
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.then((values) => values.map(val => JSON.parse(val)));
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gasAlerts.forEach(async (gasAlert) => {
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if (gasPrices.average <= gasAlert.threshold) {
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@ -23,15 +24,20 @@ const createGasPriceChecker = (client: DiscordClient) => {
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embeds: [
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new EmbedBuilder()
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.setTitle('Gas price alert!')
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.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: ${gasPrices.slow} Gwei`)
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.setDescription(`<@${gasAlert.userId}>!
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Gas prices have fallen below your alert threshold of ${gasAlert.threshold} Gwei:
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⚡${gasPrices.fast} ⦚⦚ 🚶${gasPrices.average} ⦚⦚ 🐢${gasPrices.slow}`)
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.setColor('#FF8C00')
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],
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target: user
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})
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console.log(`Alerted ${user} under threshold ${gasAlert.threshold}: Removing alert...`)
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await redisClient.hDel('gas-alerts', `${gasAlert.userId}`)
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}
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});
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} catch (error) {
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console.error(`Error checking gas prices: ${error}`);
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console.log(`Error checking gas prices:\n`, error);
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}
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}, 15000);
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};
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@ -8,7 +8,7 @@ import { GasAlert } from '../types/gasAlert';
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const handleGasCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
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const gasPrices = await getGasPricesInGwei();
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console.log(`Replying to command "/gas": \n${gasPrices}`);
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console.log(`Replying to command "/gas": \n`, gasPrices);
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const embed = new EmbedBuilder()
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.setColor('#0099ff')
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@ -28,9 +28,7 @@ const handleGasAlertCommand = async (interaction: ChatInputCommandInteraction):
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console.log(`Replying to command "/gas gwei ${threshold}"`);
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await redisClient.connect();
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await redisClient.hSet('gas-alerts', `${userId}`, JSON.stringify(gasAlert));
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await redisClient.disconnect();
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await interaction.reply(`Your gas alert threshold of ${threshold} Gwei has been set.`);
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};
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@ -39,17 +37,28 @@ const handleGasAlertCommand = async (interaction: ChatInputCommandInteraction):
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const handleGasPendingCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
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const userId = interaction.user.id;
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await redisClient.connect();
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const alertThreshold = await redisClient.get(`${userId}`);
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await redisClient.disconnect();
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const alertStr = await redisClient.hGet('gas-alerts', `${userId}`);
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const { threshold = null } = alertStr ? JSON.parse(alertStr) : {};
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console.log(`Replying to command "/gas pending"`);
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if (alertThreshold === null) {
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if (threshold === null) {
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await interaction.reply('No gas price alerts set');
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} else {
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await interaction.reply(`Current gas price alert threshold: ${alertThreshold} Gwei`);
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await interaction.reply(`Current gas price alert threshold: ${threshold} Gwei`);
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}
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};
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export { handleGasCommand, handleGasAlertCommand, handleGasPendingCommand };
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// Respond to the "/alert-delete" command
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const handleAlertDeleteCommand = async (interaction: ChatInputCommandInteraction): Promise<void> => {
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const userId = interaction.user.id;
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const user = interaction.user.username;
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console.log(`Replying to command "/alert-delete"`);
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await redisClient.hDel('gas-alerts', `${userId}`);
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await interaction.reply(`Removed your gas price alert, ${user}`);
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};
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export { handleGasCommand, handleGasAlertCommand, handleGasPendingCommand, handleAlertDeleteCommand };
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27
src/index.ts
27
src/index.ts
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import 'dotenv/config.js';
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import fs from 'node:fs';
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import path from 'node:path';
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import { GatewayIntentBits } from 'discord.js';
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import { ActivityType, GatewayIntentBits } from 'discord.js';
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import { getGasPricesInGwei, subToBlockHeaders } from './blockchain';
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import { deployCommands } from './deploy';
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import { DiscordClient } from './discordClient';
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import { createGasPriceChecker } from './gasPriceChecker';
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import redisClient from './redis';
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import { GasAlert } from '../types/gasAlert';
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const token = process.env.DISCORD_BOT_TOKEN || "";
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@ -38,11 +43,29 @@ for (const file of eventFiles) {
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}
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}
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deployCommands();
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console.log('Booting up discord bot')
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// Log in to Discord
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client.login(token)
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.then(deployCommands)
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.then(async () => {
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// Connect to redis
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await redisClient.connect()
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.catch((reason) => console.log("Error connecting to redis!\n", reason))
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})
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.then(async () => {
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const setDiscordStatus = async () => {
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if (client.user) {
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const { average, fast, slow } = await getGasPricesInGwei();
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client.user.setActivity(
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`⚡${fast} ⦚ 🚶${average} ⦚ 🐢${slow}`
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, { type: ActivityType.Watching });
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}
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}
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// Start listening to blockchain
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subToBlockHeaders(setDiscordStatus);
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})
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.then(() => {
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// Start the gas price checker
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createGasPriceChecker(client);
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