curl -X GET 'https://api.airbridge.io/dataspec/v1/apps/{app_name}/retention-report/measurement_options' \
  -H 'Accept-Language: ko' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer {AIRBRIDGE-API-TOKEN}'

{
  "data": [
    {
      "key": "general_retention",
      "name": "General",
      "description": "The user retention is measured based on all Start Events that occurred during the set date range. For example, the Return Event that occurred on 3/3 is attributed to both Channel A and B.  <br /><i>launch</i>\n<img src=\"https://static.airbridge.io/images/retention_measurement_tooltip_img/img_general.png\">\n<br /><i>launch</i>\n<a href=\"https://help.airbridge.io/en/guides/retention-report-viewing#general-mode\">Learn More</a>"
    },
    {
      "key": "confined_retention",
      "name": "Confined",
      "description": "The user retention is measured based on the latest Start Event that occurred during the set date range. For example, the Return Event that occurred on 3/3 is attributed to Channel B only. <br /><i>launch</i><img src=\"https://static.airbridge.io/images/retention_measurement_tooltip_img/img_confined.png\">\n<br /><i>launch</i>\n<a href=\"https://help.airbridge.io/en/guides/retention-report-viewing#confined-mode\">Learn More</a>"
    },
    {
      "key": "specific_retention",
      "name": "Specific",
      "description": "The user retention is measured based on the latest Start Event that occurred during the set date range. The Return Event is attributed when it occurs within the attribution window initiated by the Start Event. This option will be available soon. "
    }
  ]
}

{
  "type": "about:blank",
  "title": "Not Found",
  "status": 404,
  "traceId": "1-000000-000000000000000"
}