Sync Data using Webhook

The last page covered sending data into a call with API Trigger and initial_context. Now the opposite side: how Bananaflow sends what it learned back out to your system once the call ends. That extracted data lives in gathered_context. So the full picture is: initial_context is what your backend sends into the call, gathered_context is what Bananaflow extracts from it. A Webhook node is how you get gathered_context back out.

Step 1: Add the node

Click Add node, scroll down, and you’ll find the Webhook node. Add it and open it up.

Step 2: Set the endpoint

First thing you’ll see is the endpoint URL. Paste your backend’s webhook URL here. Still testing? Use a free URL from webhook.site, copy your unique URL there and paste it into Bananaflow. Set the method to POST. If your backend needs auth, add a bearer token or API key right here too.

Step 3: Build the payload template

This is the important part, it decides exactly what JSON Bananaflow sends. Include both kinds of context: initial_context fields like debtor name, client name, and debt amount, and gathered_context fields like amount to pay, payment method, and sentiment. You can also include the final business outcome with {{gathered_context.call_disposition}}, such as qualified or callback_requested. If workflow-level extraction is disabled or no custom outcome is recorded, this value falls back to the reason the call ended. See Call Dispositions to configure the outcomes.

{
  "debtor_name": "{{initial_context.debtor_name}}",
  "client_name": "{{initial_context.client_name}}",
  "debt_amount": "{{initial_context.debt_amount}}",
  "amount_user_will_pay": "{{gathered_context.amount_user_will_pay}}",
  "payment_method": "{{gathered_context.payment_method}}",
  "sentiment": "{{gathered_context.sentiment}}",
  "call_disposition": "{{gathered_context.call_disposition}}"
}

For every variable you can reference here, see the Webhook Payloads developer reference.

Variable names in your payload have to match your context fields exactly. If a variable cannot be resolved, its field remains in the payload with an empty string value.

Step 4: Save and publish

Save the webhook node, then publish the agent.

Step 5: Test it

Run a test call. When it ends, go back to your webhook receiver. You’ll see one request with both initial_context, the data you sent into the call, and gathered_context, what Bananaflow extracted from the conversation, sitting in the same JSON payload. That’s the complete loop: your backend sends initial_context into Bananaflow, Bananaflow runs the call and extracts gathered_context, and the webhook node sends the final structured data back to your backend. For production, swap the webhook.site URL for your real backend URL.

Next Steps

Connect a real phone number: Connect with Telephony covers hooking up Twilio so these calls go out for real.
Full variable list and authentication options: see the Webhook reference and the Webhook Payloads developer reference.

Getting started

Build your First Agent

Core Concepts

Configurations

Voice Agent Builder

Telephony

Integrations

Step 1: Add the node

Step 2: Set the endpoint

Step 3: Build the payload template

Step 4: Save and publish

Step 5: Test it

Next Steps

​Step 1: Add the node

​Step 2: Set the endpoint

​Step 3: Build the payload template

​Step 4: Save and publish

​Step 5: Test it

​Next Steps

Step 1: Add the node

Step 2: Set the endpoint

Step 3: Build the payload template

Step 4: Save and publish

Step 5: Test it

Next Steps