Resolve identity

Links an anonymous visitor to a known user and returns the merged profile keys.

Authentication

Requires Authorization: Bearer ${API_KEY}. Create and rotate keys from the TrackLayer dashboard.

Request body schema

{
  "anonymous_id": "string",
  "user_id": "string",
  "traits": "object"
}

Response schema · 200

{
  "identity_id": "idn_123",
  "user_id": "u_123",
  "merged": true
}

Response example

{
  "identity_id": "idn_123",
  "user_id": "u_123",
  "merged": true
}

Code examples

curl https://api.tracklayer.com/v1/identity/resolve \
  -X POST \
  -H "Authorization: Bearer ${API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{"event_name":"purchase","user_id":"u_123","properties":{"order_id":"100045","value":129}}'

Try it out

Use the dashboard to create an API key, then run one of the examples above with TRACKLAYER_API_KEY set in your environment.

Open API key settings