User Identification
To enable user-based metrics the user has to be identified with a consistent identifier. The identifier is wrapped in a context object and must be consistent for all events concerning a single user:
{
...,
"context": [
{
"type": "user",
"user": {
"id": "c57a43f7-eefc-462b-b5a8-0ef421e90f67" // uuid-v4
}
}
],
...
}
Getting a user-id from us
We provide a HTTP endpoint you can use to request a user-id. The endpoint will return a JSON payload that includes a uuid-v4.
HTTP GEThttps://api.8select.io/analytics/v3/user
{
"id": "c243ddce-e122-4532-88bb-460597632640"
}
This will only work if you make the request from the client side - i.e. you have to implement this in your frontend and the request has to be send via the user's browser.
The ID generation is e-tag based and will only work on the client side. If the browser cache is emptied we will return a new id.

Generating your own user-id
In case you want or can generate your own user-id or maybe already have some means to identify a user that is also fine. Just make sure you send us a uuid-v4. In case you already have a value that is not a uuid-v4 you can transform your value as a uuid-v5.
Identifying the user has to be done on a best efforts basis. We know that making this work 100% of the time is impossible because users can clear their device cache or change devices or something else to break the consistency.
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