Create app.py

app.py

@@ -0,0 +1,34 @@
+import gradio as gr
+import os, threading
+
+from multi_agent import run_multi_agent
+
+lock = threading.Lock()
+
+os.environ["LANGCHAIN_PROJECT"] = "langgraph-multi-agent"
+os.environ["LANGCHAIN_TRACING_V2"] = "true"
+
+LLM = "gpt-4o"
+
+def invoke(openai_api_key, topic):
+    if not openai_api_key:
+        raise gr.Error("OpenAI API Key is required.")
+    if not topic:
+        raise gr.Error("Topic is required.")
+        
+    with lock:
+        os.environ["OPENAI_API_KEY"] = openai_api_key
+        article = run_multi_agent(LLM, topic)
+        del os.environ["OPENAI_API_KEY"]
+        return article
+
+gr.close_all()
+
+demo = gr.Interface(fn = invoke, 
+                    inputs = [gr.Textbox(label = "OpenAI API Key", type = "password", lines = 1),
+                              gr.Textbox(label = "Topic", value=os.environ["TOPIC"], lines = 1)],
+                    outputs = [gr.Markdown(label = "Article", value=os.environ["OUTPUT"])],
+                    title = "Multi-Agent AI: Article Writing",
+                    description = os.environ["DESCRIPTION"])
+
+demo.launch()