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feat(Client): AsyncIterator-returning method for fetching members (#9771)

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* feat(Client): AsyncIterator-returning method for fetching members

* fix: requested changes

---------

Co-authored-by: Jiralite <33201955+Jiralite@users.noreply.github.com>
This commit is contained in:
Almeida
2023-11-08 10:43:15 +00:00
committed by GitHub
parent 413d6d67c5
commit fffe70a039
1 changed files with 81 additions and 27 deletions
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108
packages/core/src/client.ts
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@@ -1,4 +1,4 @@
import { setTimeout } from 'node:timers';
import { setTimeout, clearTimeout } from 'node:timers';
import type { REST } from '@discordjs/rest';
import { calculateShardId } from '@discordjs/util';
import { WebSocketShardEvents } from '@discordjs/ws';
@@ -199,42 +199,31 @@ export class Client extends AsyncEventEmitter<ManagerShardEventsMap> {
}
/**
* Requests guild members from the gateway.
* Requests guild members from the gateway and returns an async iterator that yields the data from each guild members chunk event.
*
* @see {@link https://discord.com/developers/docs/topics/gateway-events#request-guild-members}
* @param options - The options for the request
* @param timeout - The timeout for waiting for each guild members chunk event
* @example
* Requesting all members from a guild
* ```ts
* for await (const { members } of client.requestGuildMembersIterator({ guild_id: '1234567890', query: '', limit: 0 })) {
* console.log(members);
* }
* ```
*/
public async requestGuildMembers(options: GatewayRequestGuildMembersData, timeout = 10_000) {
public async *requestGuildMembersIterator(options: GatewayRequestGuildMembersData, timeout = 10_000) {
const shardId = calculateShardId(options.guild_id, await this.gateway.getShardCount());
const nonce = options.nonce ?? DiscordSnowflake.generate().toString();
const promise = new Promise<RequestGuildMembersResult>((resolve, reject) => {
const members: RequestGuildMembersResult['members'] = [];
const notFound: RequestGuildMembersResult['notFound'] = [];
const presences: RequestGuildMembersResult['presences'] = [];
const controller = new AbortController();
const timer = setTimeout(() => {
reject(new Error('Request timed out'));
const createTimer = () =>
setTimeout(() => {
controller.abort();
}, timeout);
const handler = ({ data }: MappedEvents[GatewayDispatchEvents.GuildMembersChunk][0]) => {
timer.refresh();
if (data.nonce !== nonce) return;
members.push(...data.members);
if ('presences' in data) presences.push(...data.presences);
if ('not_found' in data) notFound.push(...data.not_found);
if (data.chunk_index >= data.chunk_count - 1) {
this.off(GatewayDispatchEvents.GuildMembersChunk, handler);
resolve({ members, nonce, notFound, presences });
}
};
this.on(GatewayDispatchEvents.GuildMembersChunk, handler);
});
let timer: NodeJS.Timeout | undefined = createTimer();
await this.gateway.send(shardId, {
op: GatewayOpcodes.RequestGuildMembers,
@@ -245,7 +234,72 @@ export class Client extends AsyncEventEmitter<ManagerShardEventsMap> {
},
});
return promise;
try {
const iterator = AsyncEventEmitter.on<
typeof this,
ManagerShardEventsMap,
GatewayDispatchEvents.GuildMembersChunk
>(this, GatewayDispatchEvents.GuildMembersChunk, { signal: controller.signal });
for await (const [{ data }] of iterator) {
if (data.nonce !== nonce) continue;
clearTimeout(timer);
timer = undefined;
yield {
members: data.members,
nonce,
notFound: data.not_found ?? null,
presences: data.presences ?? null,
chunkIndex: data.chunk_index,
chunkCount: data.chunk_count,
};
if (data.chunk_index >= data.chunk_count - 1) {
break;
} else {
timer = createTimer();
}
}
} catch (error) {
if (error instanceof Error && error.name === 'AbortError') {
throw new Error('Request timed out');
}
throw error;
} finally {
if (timer) {
clearTimeout(timer);
}
}
}
/**
* Requests guild members from the gateway.
*
* @see {@link https://discord.com/developers/docs/topics/gateway-events#request-guild-members}
* @param options - The options for the request
* @param timeout - The timeout for waiting for each guild members chunk event
* @example
* Requesting specific members from a guild
* ```ts
* const { members } = await client.requestGuildMembers({ guild_id: '1234567890', user_ids: ['9876543210'] });
* ```
*/
public async requestGuildMembers(options: GatewayRequestGuildMembersData, timeout = 10_000) {
const members: RequestGuildMembersResult['members'] = [];
const notFound: RequestGuildMembersResult['notFound'] = [];
const presences: RequestGuildMembersResult['presences'] = [];
const nonce = options.nonce ?? DiscordSnowflake.generate().toString();
for await (const data of this.requestGuildMembersIterator({ ...options, nonce }, timeout)) {
members.push(...data.members);
if (data.presences) presences.push(...data.presences);
if (data.notFound) notFound.push(...data.notFound);
}
return { members, nonce, notFound, presences };
}
/**