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.streamlit/config.toml

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+[theme]
+primaryColor="#50d811"
+backgroundColor="#0b0c0a"
+secondaryBackgroundColor="#115603"
+textColor="#f5f5f9"

app.py

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+import streamlit as st
+from langchain_openai import ChatOpenAI
+from langchain.schema import AIMessage, HumanMessage, SystemMessage
+
+# StreamLit UI
+st.set_page_config(page_title="EcoCoinBot", page_icon=":robot:")
+
+# Define the function to add an image at the top center
+def add_image(image, width):
+    st.image(image, width=width)
+
+# Add the image at the top center with adjusted width
+add_image("logo.jpg", width=200)  # Adjust the width as needed
+
+st.header("Hey, I'm EcoCoinBot. I'm a sustainable cryptocurrency advisor. I'm your friend")
+
+# Input OpenAI API key
+openai_api_key = st.text_input("Enter your OpenAI API Key:", type="password")
+
+# Create sessionMessages if not already exists
+if "sessionMessages" not in st.session_state:
+    st.session_state.sessionMessages = [
+        SystemMessage(content="Your name is EcoCoinBot. You are a sustainable cryptocurrency investment advisor. Please only answer questions related to sustainable cryptocurrency. If a question is not related to this field, simply respond with, 'This question is not relevant to sustainable cryptocurrency. Please ask another question.'")
+    ]
+
+# Function to load answer
+def load_answer(question):
+    st.session_state.sessionMessages.append(HumanMessage(content=question))
+    try:
+        assistant_answer = chat.invoke(st.session_state.sessionMessages)
+        st.session_state.sessionMessages.append(AIMessage(content=assistant_answer.content))
+        return assistant_answer.content
+    except Exception as e:
+        if "Incorrect API key" in str(e):
+            return "The provided OpenAI API Key is incorrect. Please try again."
+        else:
+            return "An error occurred. Please try again later."
+
+# Function to get user input
+def get_text():
+    input_text = st.text_input("User: ")
+    return input_text
+
+# Proceed if OpenAI API key is provided
+if openai_api_key:
+    chat = ChatOpenAI(temperature=0, openai_api_key=openai_api_key)
+    user_input = get_text()
+    submit = st.button('Generate')  
+
+    if submit:
+        response = load_answer(user_input)
+        st.subheader("Answer:")
+        st.write(response)
+else:
+    st.warning("Please enter your OpenAI API Key to use this app.")