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Webhooks - new execution field #121

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Webhooks - new execution field #121

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dd3d75d
docs: include information about executionfield on eventData
matthewlouisbrockman Feb 19, 2026
5bcfd08
update the webhook execution to return milliseconds
matthewlouisbrockman Feb 20, 2026
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16 changes: 14 additions & 2 deletions docs/sandbox/lifecycle-events-webhooks.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -251,12 +251,18 @@ The payload structure matches the event format from the API:

```json
{
"version": "v1",
"version": "v2",
"id": "<event-id>",
"type": "<sandbox-event-type>",
"eventData": {
"sandbox_metadata": {
"<custom-key>": "<custom-value>"
},
"execution": {
"started_at": "2025-08-06T20:58:24Z",
"vcpu_count": 2,
"memory_mb": 512,
"execution_time": 1000,
}
},
"sandboxBuildId": "<template-build-id>",
Expand All @@ -268,6 +274,13 @@ The payload structure matches the event format from the API:
}
```

`eventData.execution` contains sandbox execution details and is included on `sandbox.lifecycle.killed` and `sandbox.lifecycle.paused` events:

- `started_at` - UTC RFC3339 timestamp when the current sandbox execution started
- `vcpu_count` - Number of vCPUs assigned to the sandbox
- `memory_mb` - Memory assigned to the sandbox in MB
- `execution_time` - Sandbox runtime in milliseconds

# Webhook verification
To ensure the authenticity of webhook requests, each request includes a signature in the `e2b-signature` header.
You can verify the signature using the signature secret you provided when registering the webhook.
Expand Down Expand Up @@ -346,4 +359,3 @@ The following event types can be subscribed to via webhooks, they are used as th
- `sandbox.lifecycle.updated` - Sandbox configuration updates
- `sandbox.lifecycle.paused` - Sandbox pausing
- `sandbox.lifecycle.resumed` - Sandbox resuming