Update app.py

app.py

@@ -1,49 +1,47 @@
-from smolagents import tool
-import requests
-import pandas as pd
-# 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 important 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 
-#     Args:
-#         arg1: the first argument
-#         arg2: the second argument
-#     """
-#     # return
-
-    
-SYSTEM_PROMPT= """This is a tool to get current crypto token market prices in usd currency using the coingecko api.
-
-    This is the crypto token prices tool
-
-    args1 (str): Input for crypto_ids is a string
-    args2: (str): Output for currency is an srting
-        
+from smolagents import tool 
+import requests 
+import pandas as pd 
+
+@tool def my_custom_tool(arg1: str, arg2: int) -> str: 
+    """A placeholder tool that simply echoes its inputs. 
+    Args: 
+        arg1: The first argument. 
+        arg2: The second argument. 
     Returns: 
-        (str): You should return all valid requests with the crypto id, and its current price in usd denominations.
-"""
+        A short status string. 
+    """ 
+    return f"arg1={arg1}, arg2={arg2}"
 
 @tool
-# Function to get current prices of specified cryptocurrencies
-def get_crypto_prices(crypto_ids='tokens', currency='usd'): str
-
-url = "https://pro-api.coingecko.com/api/v3/simple/price?&x_cg_demo_api_key=CG-4TqTQv39JuPvRFmz3dz5Kcff"
-
-response = requests.get(url)
-
-if response.status_code == 200:
-    data = response.json()
-    print (pd.DataFrame(data).T)  # Transpose for better readability
-else:
-        print("Failed to retrieve data")
-
-# Specify the cryptocurrencies you want to check
-cryptos_ids = ['bitcoin&vs_currencies=usd&x_cg_pro_api_key=CG-4TqTQv39JuPvRFmz3dz5Kcff',
-               'ethereum&vs_currencies=usd&x_cg_pro_api_key=CG-4TqTQv39JuPvRFmz3dz5Kcff',
-               'ripple&vs_currencies=usd&x_cg_pro_api_key=CG-4TqTQv39JuPvRFmz3dz5Kcff']
-
-# Get current prices
-prices = get_crypto_prices(cryptos_ids)
-
-print(prices)
+def get_crypto_prices(crypto_ids: list[str], currency: str = "usd") -> dict:
+    """Get current crypto prices using CoinGecko Simple Price.
+    Args:
+        crypto_ids: List of CoinGecko coin IDs, e.g. ["bitcoin","ethereum","ripple"].
+        currency: Fiat currency code, e.g. "usd".
+    Returns:
+        Dict mapping coin_id -> price in the requested currency.
+    """
+    if not crypto_ids:
+        return {"error": "crypto_ids must be a non-empty list"}
+
+    url = "https://api.coingecko.com/api/v3/simple/price"
+    params = {"ids": ",".join(crypto_ids), "vs_currencies": currency.lower()}
+
+    try:
+        r = requests.get(url, params=params, timeout=10)
+        r.raise_for_status()
+    except Exception as e:
+        return {"error": f"request failed: {e}"}
+
+    data = r.json() # shape: {"bitcoin":{"usd":12345.6}, ...}
+    # flatten to { "bitcoin": 12345.6, ... }
+    return {coin: payload.get(currency.lower()) for coin, payload in data.items()}
+
+# Example usage outside the agent:
+cryptos = ["bitcoin", "ethereum", "ripple"]
+prices = get_crypto_prices(cryptos, currency="usd")
+print(prices)
+
+# Optional: nice tabular view for humans
+df = pd.DataFrame.from_dict(prices, orient="index", columns=["usd"])
+print(df)