Add endpoint for the emotes

routes/profileRoute.ts

@@ -87,4 +87,14 @@ profileRouter.get('/search', async (req, res, next) => {
     })
 })
 
+profileRouter.get('/emotes/:streamerName', async (req, res, next) => {
+    const emotes = await twitch.getEmotes(req.params.streamerName)
+      .catch(next)
+  
+    if(emotes) 
+      res.send(emotes)
+  })
+  
+  
+
 export default profileRouter

routes/proxyRoute.ts

@@ -82,8 +82,6 @@ proxyRouter.get('/stream/segment/:encodedUrl', async (req: Request, res: Respons
   res.send(buf)
 })
 
-
-
 const twitchChatServer = new TwitchChatServer();
 export const wsServer = new ws.Server({ noServer: true });
 twitchChatServer.startWebSocketServer(wsServer);

types/scraping/emotes/bttv.ts

@@ -0,0 +1,18 @@
+export type bttvData = SharedEmotesEntity[]
+
+  export interface SharedEmotesEntity {
+    id: string;
+    code: string;
+    imageType: string;
+    animated: boolean;
+    user: User;
+    width?: number | null;
+    height?: number | null;
+    codeOriginal?: string | null;
+  }
+  export interface User {
+    id: string;
+    name: string;
+    displayName: string;
+    providerId: string;
+  }

types/scraping/emotes/ffz.ts

@@ -0,0 +1,52 @@
+export interface ffzData {
+    room: Room;
+    sets: Sets;
+}
+
+export interface Room {
+    _id: number;
+    twitch_id: number;
+    youtube_id?: null;
+    id: string;
+    is_group: boolean;
+    display_name: string;
+    set: number;
+}
+
+export interface Sets {
+    [k: number]: SetData;
+}
+
+export interface SetData {
+    id: number;
+    _type: number;
+    title: string;
+    emoticons: EmoteData[];
+}
+
+export interface EmoteData {
+    id: number;
+    name: string;
+    height: number;
+    width: number;
+    public: boolean;
+    hidden: boolean;
+    modifier: boolean;
+    modifier_flags: number;
+    owner: Owner;
+    urls: Urls;
+    status: number;
+    usage_count: number;
+    created_at: string;
+    last_updated: string;
+}
+
+export interface Owner {
+    _id: number;
+    name: string;
+    display_name: string;
+}
+
+export interface Urls {
+    [k: number]: string
+}

types/scraping/emotes/index.ts

@@ -0,0 +1,2 @@
+export * from './bttv'
+export * from './ffz'

util/scraping/extractor/emoteHandler.ts

@@ -0,0 +1,53 @@
+import { Urls, bttvData, ffzData } from "../../../types/scraping/emotes"
+
+interface Emote {
+    name: string
+    urls: Urls
+}
+
+export const ffzEmotesHandler = (emoteData: ffzData) => {
+    const sets = emoteData.sets[emoteData.room.set]
+    const emotes: Emote[] = []
+
+    for (let emote of sets.emoticons) {
+        const data: Emote = {
+            name: emote.name,
+            urls: emote.urls
+        }
+
+        emotes.push(data)
+    }
+
+    return emotes
+}
+
+const generateBttvEmoteUrls = (id: string) => {
+  const bttvApi = 'https://cdn.betterttv.net/emote/'
+  const urls: Urls = {}
+
+  // Creates urls like "https://cdn.betterttv.net/emote/6368b11b9013520589f5ac0c/3x" from 1x to 3x
+  for (let i = 1; i < 4; i++) {
+    urls[i] = `${bttvApi}${id}/${i}x`
+  }
+
+  return urls
+}
+
+export const bttvEmotesHandler = (emoteData: bttvData) => {
+  const rawEmoteArray = emoteData
+  console.log(emoteData.length)
+  const emotes: Emote[] = []
+
+  for (let rawEmote of rawEmoteArray) {
+    const formattedEmote: Emote = {
+      name: rawEmote.code,
+      urls: generateBttvEmoteUrls(rawEmote.id)
+    }
+    
+    emotes.push(formattedEmote)
+  }
+
+  console.log(emotes.length)
+  console.log(emotes)
+  return emotes
+} 

util/scraping/extractor/index.ts

@@ -3,6 +3,7 @@ import { StreamerData, StreamData, Social, Badge } from "../../../types/scraping
 import { Category, Tag } from "../../../types/scraping/Category"
 import { CategoryData, CategoryMinifiedStream } from "../../../types/scraping/CategoryData"
 import { SearchResult } from "../../../types/scraping/Search"
+import { bttvEmotesHandler, ffzEmotesHandler } from "./emoteHandler"
 
 const base64 = (data: String) => {
   return Buffer.from(data).toString('base64url')
@@ -259,8 +260,6 @@ export class TwitchAPI {
       headers: this.headers
     })
 
-    console.log(res.status)
-
     return await res.text()
   }
 
@@ -589,4 +588,54 @@ export class TwitchAPI {
 
     return finalData
   }
+
+  public getStreamerId = async (channelName: string) => {
+    const payload = {
+      "operationName": "ChannelRoot_AboutPanel",
+      "variables": {
+        "channelLogin": channelName,
+        "skipSchedule": true
+      },
+      "extensions": {
+        "persistedQuery": {
+          "version": 1,
+          "sha256Hash": "6089531acef6c09ece01b440c41978f4c8dc60cb4fa0124c9a9d3f896709b6c6"
+        }
+      }
+    }
+
+    const res = await fetch(this.twitchUrl, {
+      method: 'POST',
+      body: JSON.stringify(payload),
+      headers: this.headers
+    })
+    const data = await res.json()
+
+    if (!data.data.user) {
+      return Promise.reject(new Error(`Steamer ${channelName} is offline.`))
+    }
+
+    return Number(data.data.user.id)
+  }
+
+  public getEmotes = async (channelName: string) => {
+    let id = await this.getStreamerId(channelName)
+    const ffzUrl = 'https://api.frankerfacez.com/v1/room/id/' + id
+    const bttvGlobalUrl = 'https://api.betterttv.net/3/cached/users/twitch/121059319'
+    const bttvChannelUrl = 'https://api.betterttv.net/3/cached/users/twitch/' + id  
+
+    let res = await fetch(ffzUrl)
+    let data = await res.json()
+    const ffzEmotes = ffzEmotesHandler(data)
+
+    res = await fetch(bttvGlobalUrl)
+    data = await res.json()
+    const bttvGlobalEmotes = bttvEmotesHandler([...data.channelEmotes, ...data.sharedEmotes])
+
+    res = await fetch(bttvChannelUrl)
+    data = await res.json()
+    const bttvChannelEmotes = bttvEmotesHandler(data.channelEmotes)
+
+    return [ ...ffzEmotes, ...bttvGlobalEmotes, ...bttvChannelEmotes]
+  }
 }