Optimize file uploading

src/bots/factory/bots/approved/messages.ts

@@ -9,7 +9,7 @@ export const SETTINGS_MESSAGE = 'Настройки:';
 
 export const SEARCH_MESSAGE = 'Что ищем?';
 
-export const BOOKS_NOT_FOUND = "Книги для не найдены.";
+export const BOOKS_NOT_FOUND = "Книги не найдены.";
 
 export const AUTHORS_NOT_FOUND = "Авторы не найдены.";
 

src/bots/factory/bots/approved/services/book_cache.ts

@@ -54,25 +54,29 @@ export async function clearBookCache(bookId: number, fileType: string): Promise<
 }
 
 export interface DownloadedFile {
-    source: Buffer;
+    source: NodeJS.ReadableStream;
     filename: string;
     caption: string;
 }
 
 export async function downloadFromCache(bookId: number, fileType: string): Promise<DownloadedFile> {
-    const response = await got<string>(`${env.CACHE_SERVER_URL}/api/v1/download/${bookId}/${fileType}`, {
+    const readStream = got.stream.get(`${env.CACHE_SERVER_URL}/api/v1/download/${bookId}/${fileType}`, {
         headers: {
             'Authorization': env.CACHE_SERVER_API_KEY,
         },
     });
 
-    const captionData = response.headers['x-caption-b64'];
+    return new Promise<DownloadedFile>((resolve, reject) => {
+        readStream.on("response", async response => {
+            const captionData = response.headers['x-caption-b64'];
 
-    if (captionData === undefined || Array.isArray(captionData)) throw Error('No caption?');
+            if (captionData === undefined || Array.isArray(captionData)) throw Error('No caption?');
         
-    return {
-        source: response.rawBody,
-        filename: (response.headers['content-disposition'] || '').replaceAll('"', "").split('filename=')[1],
-        caption: decode(captionData),
-    }
+            return resolve({
+                source: readStream,
+                filename: (response.headers['content-disposition'] || '').replaceAll('"', "").split('filename=')[1],
+                caption: decode(captionData),
+            })
+        });
+    });
 }

src/bots/factory/bots/approved/services/downloader.ts

@@ -4,35 +4,43 @@ import env from '@/config';
 
 
 export interface DownloadedFile {
-    source: Buffer;
+    source: NodeJS.ReadableStream;
     filename: string;
 }
 
 
 export async function download(source_id: number, remote_id: number, file_type: string): Promise<DownloadedFile> {
-    const response = await got<string>(`${env.DOWNLOADER_URL}/download/${source_id}/${remote_id}/${file_type}`, {
+    const readStream = got.stream.get(`${env.DOWNLOADER_URL}/download/${source_id}/${remote_id}/${file_type}`, {
         headers: {
             'Authorization': env.DOWNLOADER_API_KEY,
         },
     });
 
-    return {
-        source: response.rawBody,
-        filename: (response.headers['content-disposition'] || '').split('filename=')[1]
-    }
+    return new Promise<DownloadedFile>((resolve, reject) => {
+        readStream.on("response", async response => {
+            resolve({
+                source: readStream,
+                filename: (response.headers['content-disposition'] || '').split('filename=')[1]
+            });
+        });
+    });
 }
 
 
-export async function downloadImage(path: string) {
-    try {
-        const response = await got(path);
+export async function downloadImage(path: string): Promise<NodeJS.ReadableStream | null> {
+    const readStream = got.stream.get(path, {throwHttpErrors: false});
 
-        if (response.statusCode === 200) {
-            return response.rawBody;
-        } else {
-            return null;
-        }
-    } catch {
-        return null;
-    }
+    return new Promise<NodeJS.ReadableStream | null>((resolve, reject) => {
+        readStream.on("response", async response => {
+            if (response.statusCode === 200) {
+                resolve(readStream);
+            } else {
+                resolve(null);
+            }
+        });
+    
+        readStream.once("error", error => {
+            resolve(null);
+        })
+    });
 }