Fix for Whisper Error: 'File is not defined' when using Speech to Text (#2526)

* tested ok

* update localai stt file

* update toFile method for OpenAI Assistant uploads

---------

Co-authored-by: Henry Heng <henryheng@flowiseai.com>
Co-authored-by: Henry <hzj94@hotmail.com>

packages/components/src/speechToText.ts

@@ -1,6 +1,6 @@
 import { ICommonObject, IFileUpload } from './Interface'
 import { getCredentialData } from './utils'
-import { type ClientOptions, OpenAIClient } from '@langchain/openai'
+import { type ClientOptions, OpenAIClient, toFile } from '@langchain/openai'
 import { AssemblyAI } from 'assemblyai'
 import { getFileFromStorage } from './storageUtils'
 
@@ -22,8 +22,9 @@ export const convertSpeechToText = async (upload: IFileUpload, speechToTextConfi
                     apiKey: credentialData.openAIApiKey
                 }
                 const openAIClient = new OpenAIClient(openAIClientOptions)
+                const file = await toFile(audio_file, upload.name)
                 const openAITranscription = await openAIClient.audio.transcriptions.create({
-                    file: new File([new Blob([audio_file])], upload.name),
+                    file: file,
                     model: 'whisper-1',
                     language: speechToTextConfig?.language,
                     temperature: speechToTextConfig?.temperature ? parseFloat(speechToTextConfig.temperature) : undefined,
@@ -56,8 +57,9 @@ export const convertSpeechToText = async (upload: IFileUpload, speechToTextConfi
                     baseURL: speechToTextConfig?.baseUrl
                 }
                 const localAIClient = new OpenAIClient(LocalAIClientOptions)
+                const file = await toFile(audio_file, upload.name)
                 const localAITranscription = await localAIClient.audio.transcriptions.create({
-                    file: new File([new Blob([audio_file])], upload.name),
+                    file: file,
                     model: speechToTextConfig?.model || 'whisper-1',
                     language: speechToTextConfig?.language,
                     temperature: speechToTextConfig?.temperature ? parseFloat(speechToTextConfig.temperature) : undefined,

packages/server/src/services/openai-assistants-vector-store/index.ts

@@ -178,8 +178,9 @@ const uploadFilesToAssistantVectorStore = async (
         const openai = new OpenAI({ apiKey: openAIApiKey })
         const uploadedFiles = []
         for (const file of files) {
+            const toFile = await OpenAI.toFile(fs.readFileSync(file.filePath), file.fileName)
             const createdFile = await openai.files.create({
-                file: new File([new Blob([fs.readFileSync(file.filePath)])], file.fileName),
+                file: toFile,
                 purpose: 'assistants'
             })
             uploadedFiles.push(createdFile)

packages/server/src/services/openai-assistants/index.ts

@@ -101,8 +101,9 @@ const uploadFilesToAssistant = async (credentialId: string, files: { filePath: s
     const uploadedFiles = []
 
     for (const file of files) {
+        const toFile = await OpenAI.toFile(fs.readFileSync(file.filePath), file.fileName)
         const createdFile = await openai.files.create({
-            file: new File([new Blob([fs.readFileSync(file.filePath)])], file.fileName),
+            file: toFile,
             purpose: 'assistants'
         })
         uploadedFiles.push(createdFile)