Update app.py

app.py

@@ -127,7 +127,7 @@ def clean_text(text):
 
 def translate_text(api_key, text, source_language = "en", target_language = "fa"):
     url = "https://api.one-api.ir/translate/v1/google/"
-    request_body = {"source": source_lang, "target": target_lang, "text": text}
+    request_body = {"source": source_language, "target": target_language, "text": text}
     headers = {"one-api-token": api_key, "Content-Type": "application/json"}
     response = requests.post(url, headers=headers, json=request_body)
     if response.status_code == 200: