Uber Developers

Receipt Ready Notification

WEBHOOK: POSThttps://<YOUR_WEBHOOK_URI> event_type: guests.trips.receipt_ready

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Event indicating that a receipt has been created for the trip. Sent upon completion of a trip or when an update to the final fare of a trip taken is added to a receipt.

¶ Retry Attempts

If for some reason the Uber API cannot reach the webhook URL you specified either due to networking issues or application issues on your end, the webhooks service will retry to make a request.

We have implemented an exponential back-off algorithm with a back-off multiplier of 30 seconds which will make up to 7 attempts. This means we will attempt to request your webhook URL up to 7 times across roughly 1 hour.

¶ Webhook Headers

The Uber API will insert specialized headers for all requests made to your webhook URL to help your application utilize them appropriately.

Header	Description
`X-Environment`	Indicates if this request is coming from the `production` or `sandbox` API.
`X-Uber-Signature`	SHA256 hash of the request body, computed using the app’s signing key as the key.

¶ Webhook Security

Webhook messages are signed so that your app can verify that the sender is Uber. Webhooks requests contain an X-Uber-Signature header. The value of this field is a hexadecimal HMAC signature of the webhook HTTP request body, using signing key of primary webhook url as a key and SHA256 as the hash function.

Python Example

digester = hmac.new(signing_key, webhook_body, hashlib.sha256)
return digester.hexdigest()

Due to a strict interpretation of the JSON specification by JavaScript, if there are backslashes sent in the POST body, they will be removed upon parsing. This prevents webhook receivers implemented in NodeJS from verifying the webhook signature accurately. We are working on removing all backslashes from the payload in order to avoid this situation and will remove this note when that work is done.

¶ Webhook Event Structure

Name	Type	Description
`event_id`	`string`	Unique event identifier, which can be used to ensure that events are only digested once.
`event_time`	`integer`	Unix timestamp of the time the event occurred.
`event_type`	`string`	The type of event that occurred.
`resource_href`	`string`	The URL of the resource being referenced. This URL can be called with your App’s bearer token to retrieve the full payload.
`meta`	`object`	The object containing additional information that is specific to the `event_type`.
`meta.user_id`	`string`	Unique identifier of the user this event was generated for.
`meta.org_uuid`	`string`	The unique UUID of the Uber for Business organization for which the ride was requested.
`meta.resource_id`	`string`	Unique identifier of the resource this event has been generated for.
`meta.status`	`string`	The current status of the resource.

The guests.trips.receipt_ready event_type can only have one value at this time, indicating the receipt is processed and ready to be retrieved via the API. The receipts ready webhooks are available only for production trips and are not applicable for Sandbox trips.

Status	Description
ready	The receipt has been generated and is ready for retrieval.

¶ Example Webhook

{
   "event_id": "3a3f3da4-14ac-4056-bbf2-d0b9cdcb1000",
   "event_time": 1427343999,
   "event_type": "guests.trips.receipt_ready",
   "meta": {
       "user_id": "d13dff8b-das-asd-1212e",
       "org_uuid": "63c2fd9c-b787-47d8-ae8f-f4145cecbcb5",
       "resource_id": "5152dcc5-b88d-4754-8b33-975f4067c943",
       "status": "ready"
   },
   "resource_href": "https://api.uber.com/v1/guests/trips/5152dcc5-b88d-4754-8b33-975f4067c943/receipt"
}