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Prerequisites

For this tutorial it is recommended to have the following in place:
  • To receive webhooks you’ll need to set up a callback URI on your server.
  • To subscribe a vehicle you’ll want to have Connect integrated into your application.

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Setting up a Dynamic Webhook

Navigate to Webhooks from the Smartcar Dashboard, select + Add webhook and select Dynamic from the Webhooks config wizard.
Name your webhook and specify a callback URI. Your callback URI is where Smartcar will send payloads from vehicles connected to your webhook. Click Next.
Confirm everything looks good and hit Add.

Currently Dynamic Webhooks only support returning data from the location, charge, and battery endpoints. Changes in data frequency are only supported based on the plugged in state for EVs.
After adding your webhook, you’ll need to verify your callback URI. This is to ensure Smartcar is sending data to the correct place!
Please see our API reference on how to verify a webhook, or Part II on this blog post for a more in depth guide.

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Subscribing vehicles to a webhook

Now you’ve got your webhook set up, you can subscribe vehicles to start getting data. If you haven’t done so already, please set up Connect for your application. After going through Connect and receiving your initial access_token, you’ll first want to hit the All Vehicles endpoint to fetch the Smartcar vehicle_ids of the authorized vehicles. 
curl "https://api.smartcar.com/v2.0/vehicles" \
-H "Authorization: Bearer {token}" \
-X "GET"

With your access_token and webhook_id you can hit the Subscribe endpoint for each vehicle_id to start receiving data. 
curl "https://api.smartcar.com/v2.0/vehicles/{vehicleId}/webhooks/{webhookId}" \
-H "Authorization: Bearer {token}" \
-X "POST"

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Example payload

dynamicWebhook.json
{
  "version": "2.0",
  "webhookId": "865ca68d-a9b6-4d74-856e-605db0209eca",
  "eventName": "dynamic",
  "mode": "live",
  "payload": {
    "vehicles": [
      {
        "vehicleId": "00000000-0000-4000-A000-000000000000",
        "requestId": "25d743b8-14cf-4744-b067-bd8d7daf3f1a",
        "data": [
          {
            "path": "/battery",
            "code": 200,
            "body": {
              "range": 283.244544,
              "percentRemaining": 0.58
            },
            "headers": {
              "sc-data-age": "2024-09-20T21:58:06.000Z"
            }
          },
          {
            "path": "/charge",
            "code": 200,
            "body": {
              "isPluggedIn": false,
              "state": "NOT_CHARGING"
            },
            "headers": {
              "sc-data-age": "2024-09-20T21:58:06.000Z"
            }
          },
          {
            "path": "/location",
            "code": 200,
            "body": {
              "latitude": 37.4292,
              "longitude": 122.1381,
            },
            "headers": {
              "sc-data-age": "2024-09-20T21:58:48.000Z"
            }
          }
        ]
      }
    ]
  }
}

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FAQs