Update app.py

app.py

@@ -9,14 +9,36 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
+def get_coin_price(symbol: str, currency: str = "usd")-> str: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+    """A tool that fetches the latest price on a cryptocurrency symbol from Coingecko API.
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        symbol: A string representing a valid symbol as CoinGecko's ID, not ticker (e.g., 'bitcoin' not BTC).
+        currency: A string representing the currency the value is returned in (e.g., 'usd').
     """
-    return "What magic will you build ?"
+    # set to lowercase for api compatibility and consistency
+    symbol = symbol.lower()
+    currency = currency.lower()
+    
+    #define the endpoint with return headers - https://docs.coingecko.com/v3.0.1/reference/simple-price
+    url = "https://api.coingecko.com/api/v3/simple/price?ids=" + symbol + "&vs_currencies=" + currency
+    headers = {"accept": "application/json"}
+    
+    try:
+        #make request to endpoint
+        response = requests.get(url, headers=headers)
+        
+        #process response
+        if response.status_code == 200:
+            data = response.json()
+            usd_value = data[symbol][currency]
+            return f"The price of " + symbol + " in " + currency + " is " + f"${usd_value:,.2f}" #format as currency
+        else:
+            # returrn verbose error, so the model can observe and ReAct
+            return f"Error: {response.status_code}, {response.text}"
+    except Exception as e:
+        return f"Error fetching price for '{symbol}' valued in currency '{currency}': {str(e)}"
+
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
@@ -55,7 +77,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer, DuckDuckGoSearchTool], ## add your tools here (don't remove final answer)
+    tools=[final_answer, get_coin_price, get_current_time_in_timezone, DuckDuckGoSearchTool()], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,