use baseURL always in upload module

Author: yogishbaliga

examples/uploading-files.ts

@@ -1,18 +1,25 @@
 #!/usr/bin/env -S npm run tsn -T
 
 // Example of uploading a file
-import { upload } from 'together-ai/lib/upload';
+import { upload, ErrorResponse, FileResponse } from 'together-ai/lib/upload';
 import fetch from 'node-fetch';
+import * as core from 'together-ai/core';
 
 async function main() {
   // Upload a file
-  const file = await upload('./examples/coqa.jsonl');
+  const file: ErrorResponse | FileResponse = await upload('./examples/coqa.jsonl');
   console.log('Uploaded file');
   console.log(file);
 
+  if ('message' in file) {
+    console.error(file.message);
+    return;
+  }
+
   // Check if the file has any contents (https://docs.together.ai/reference/get_files-id-content)
   // @ts-ignore
-  const url = `https://api.together.xyz/v1/files/${file.id}/content`;
+  const baseUrl = core.readEnv('TOGETHER_API_BASE_URL') || 'https://api.together.ai/v1';
+  const url = `${baseUrl}/files/${file.id}/content`;
   const options = {
     method: 'GET',
     headers: {

src/lib/upload.ts

@@ -29,7 +29,7 @@ const failedUploadMessage = {
   message: 'failed to upload file',
 };
 
-const baseURL = 'https://api.together.xyz/v1';
+const baseURL = core.readEnv('TOGETHER_API_BASE_URL') || 'https://api.together.xyz/v1';
 const MAX_FILE_SIZE = 4.8; // GB
 const BYTES_PER_GB = 1024 * 1024 * 1024;
 const MIN_SAMPLES = 1;
@@ -203,7 +203,6 @@ export async function upload(fileName: string, check: boolean = true): Promise<F
   // 1. check if file exists
   // 2. get signed upload url
   // 3. upload file
-  const baseUrl = core.readEnv('TOGETHER_API_BASE_URL') || 'https://api.together.ai/v1';
   const apiKey = core.readEnv('TOGETHER_API_KEY');
 
   if (!apiKey) {