add api_key variable

app.py

@@ -50,7 +50,8 @@ class RetrievalAugmentedQAPipeline:
         return {"response": generate_response(), "context": context_list}
 
 # text_splitter = RecursiveCharacterTextSplitter()
-text_splitter = SemanticChunker(OpenAIEmbeddings(), breakpoint_threshold_type="standard_deviation")
+api_key = os.getenv("OPENAI_API_KEY")
+text_splitter = SemanticChunker(OpenAIEmbeddings(api_key=api_key), breakpoint_threshold_type="standard_deviation")
 
 def process_text_file(file: AskFileResponse):
     import tempfile