how to provide assistant with a return after funct...
# support
a
hello! I have a custom function calling set up with a serverurl but want to provide the assistant with the result of that funcion. how can I do this?
v
Hi @Arcu, I'm an AI assistant for Vapi. I'll analyze available sources and get back to you shortly.
----------------------------- **While I generate an answer, here are some sources that might be helpful**: * [Get Assistant]() * [Function Calling]() * [Delete Assistant]() * [Update Assistant]() -----------------------------
### Answer Hello! To provide the assistant with the result of a function call, you should ensure that your server URL is properly set up to handle the function calls and the response data is correctly structured for the assistant to use. When you define your custom function, you specify a
serverUrl
which the assistant will call. The response from this URL should return data in a format that the assistant can interpret and utilize within the conversation. Here’s a brief guide on how you can implement this: 1. **Define the Function**: Define your custom function in the assistant's configuration, specifying the necessary parameters and the
serverUrl
. 2. **Handle the Function Call**: On your server, handle the incoming function call, perform the required operations, and prepare the data you want to return to the assistant. 3. **Respond Correctly**: Send the data back as a JSON object within the HTTP response body. The assistant will use this data as part of the conversation flow according to your setup. Here is an example of how you might configure a function within the assistant's settings:
Copy code
json
{
  "functions": [
    {
      "name": "fetchUserData",
      "description": "Fetches user data based on userId",
      "parameters": {
        "type": "object",
        "properties": {
          "userId": {
            "type": "string",
            "description": "The ID of the user"
          }
        }
      }
    }
  ]
}
[(1)]() And ensure your server handling the
serverUrl
endpoint can parse incoming requests, perform logic, and return a response like:
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json
{
  "userData": {
    "name": "John Doe",
    "membershipLevel": "Gold"
  }
}
The assistant will then use the
userData
object in its conversation logic, based on how you have set it to interpret incoming data. Make sure to test the integration thoroughly to ensure the data flows correctly and the assistant behaves as expected in response to the function outputs. If you encounter any issues, checking the server logs and the response structure would be advisable.
a
so basically the assistant saves the api response in the chat history? it always waits for the response or it just executes it?
v
Got it. Tagging @User for additional help.
s
a
thank you! you can go ahead and close the ticket if needed
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