Create app.py

app.py

@@ -0,0 +1,32 @@
+import streamlit as st
+
+from backend_services import ServiceOne, ServiceTwo
+
+# List of available services
+services = {
+    "Service One": ServiceOne(),
+    "Service Two": ServiceTwo()
+}
+
+# User selects services and parameters
+selected_services = st.multiselect("Select Services", list(services.keys()))
+parameters = {}
+
+# Allow users to input parameters for selected services
+for service_name in selected_services:
+    service_instance = services[service_name]
+    parameters[service_name] = {}
+    for param_name in service_instance.parameters:
+        parameters[service_name][param_name] = st.text_input(f"Enter {param_name} for {service_name}")
+
+# User-defined workflow execution
+if st.button("Run Workflow"):
+    input_data = ...  # Define your input data
+    for service_name in selected_services:
+        service_instance = services[service_name]
+        service_instance.parameters = parameters[service_name]
+        output_data = service_instance.execute(input_data)
+        input_data = output_data
+
+    # Display the final output
+    st.success("Workflow executed successfully. Output: {}".format(input_data))