sources/new-message-in-channel/new-message-in-channel.mjs
import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform"; import maxBy from "lodash.maxby"; import common from "../common/common.mjs"; import sampleEmit from "./test-event.mjs"; const { discord } = common.props; export default { ...common, key: "discord_bot-new-message-in-channel", name: "New Message in Channel", description: "Emit new event for each message posted to one or more channels", type: "source", version: "1.0.0", dedupe: "unique", props: { ...common.props, db: "$.service.db", channels: { type: "string[]", label: "Channels", description: "The channels you'd like to watch for new messages", propDefinition: [ discord, "channelId", ({ guildId }) => ({ guildId, }), ], }, emitEventsInBatch: { type: "boolean", label: "Emit messages as a single event", description: "If `true`, all messages are emitted as an array, within a single Pipedream event. Defaults to `false`, emitting each Discord message as its own event in Pipedream", optional: true, default: false, }, ignoreBotMessages: { type: "boolean", label: "Ignore Bot Messages", description: "Set to `true` to only emit messages NOT from the configured Discord bot", optional: true, }, timer: { type: "$.interface.timer", default: { intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL, }, }, }, hooks: { async deploy() { if (this.ignoreBotMessages) { const { id } = await this.getBotProfile(); this._setBotId(id); } }, }, async run({ $ }) { let lastMessageIDs = this._getLastMessageIDs(); const botId = this.ignoreBotMessages ? this._getBotId() : null; for (const channelId of this.channels) { let lastMessageID; let messages = []; if (!lastMessageID) { messages = await this.discord.getMessages({ $, channelId, params: { limit: 100, }, }); lastMessageID = messages.length ? maxBy(messages, (message) => message.id).id : 1; } else { let newMessages = []; do { newMessages = await this.discord.getMessages({ $, channelId, params: { after: lastMessageIDs[channelId], }, }); messages = messages.concat(newMessages); lastMessageID = newMessages.length ? maxBy(newMessages, (message) => message.id).id : lastMessageIDs[channelId]; } while (newMessages.length); } lastMessageIDs[channelId] = lastMessageID; if (!messages.length) { console.log(`No new messages in channel ${channelId}`); return; } if (botId) { messages = messages.filter((message) => message.author.id !== botId); } console.log(`${messages.length} new messages in channel ${channelId}`); if (this.emitEventsInBatch) { const suffixChar = messages.length > 1 ? "s" : ""; this.$emit(messages, { summary: `${messages.length} new message${suffixChar}`, id: lastMessageID, }); } else { messages.forEach((message) => { this.$emit(message, { summary: message.content, id: message.id, }); }); } } this._setLastMessageIDs(lastMessageIDs); }, sampleEmit, };
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