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Amplitude and Connected Content

Amplitude’s user profile API serves Amplitude user profiles. This includes user properties, computed user properties, a list of cohort IDs of cohorts that include the user, and recommendations. The following lists common Amplitude API endpoints that an be used with Connected Content.

Endpoint parameters

The following table lays out the parameters you can use in your calls to the user profile API.

Parameter Required Description
user_id Optional User id (external database id) to be queried, required unless device_id is set.
device_id Optional Device id (anonymous id) to be queried, required unless user_id is set.
get_recs Optional
(Defaults to false)
Return a recommendation result for this user.
rec_id Optional Recommendation(s) to be retrieved, required if get_recs is true. Multiple recommendations can be fetched by separating the rec_ids with commas.
rec_type Optional Overrides the default experimental control setting and rec_type=model will return modeled recommendations and rec_type=random return random recommendations. Other options may exist in the future.
get_amp_props Optional
(Defaults to false)
Return a full set of user properties for this user, not including computations.
get_cohort_ids Optional
(Defaults to false)
Return a list of all of the cohort IDs that this user is a part of that have been set up to be tracked. By default cohort membership is not tracked for users for any cohort.
get_computations Optional
(Defaults to false)
Return a list of all of the computations that are enabled for this user.
comp_id Optional Return a single computation that might be enabled for this user. It will return a null value if it does not exist. If get_computations is true, all values will be fetched, including this one (unless it is archived or deleted).

The following table covers the parameters you can most typically expect to see in Amplitude’s responses.

Response Parameter Description
rec_id The recommendation id that was requested.
child_rec_id A more detailed recommendation id that Amplitude may use on the backend as part of an internal experiment to improve model performance. In most cases, this will be the same as rec_id.
items List of recommendations for this user.
is_control true if this user is part of the control group.
recommendation_source Name of the model that was used to generate this recommendation
last_updated Timestamp of when this recommendation was last generated and synced.

Common Amplitude endpoints

Get a recommendation

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&get_recs=true&rec_id=testRecId

Example response

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{
  "userData": {
    "recommendations": [
      {
        "rec_id": "testRecId",
        "child_rec_id": "testRecId",
        "items": [
          "cookie",
          "cracker",
          "chocolate milk",
          "donut",
          "croissant"
        ],
        "is_control": false,
        "recommendation_source": "model",
        "last_updated": 1608670720
      }
    ],
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": null,
    "cohort_ids": null
  }
}

Get multiple recommendations

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&get_recs=true&rec_id=testRecId,testRecId2

Example response

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{
  "userData": {
    "recommendations": [
      {
        "rec_id": "testRecId",
        "child_rec_id": "testRecId",
        "items": [
          "cookie",
          "cracker",
          "chocolate milk",
          "donut",
          "croissant"
        ],
        "is_control": false,
        "recommendation_source": "model",
        "last_updated": 1608670720
      },
            {
        "rec_id": "testRecId2",
        "child_rec_id": "testRecId2",
        "items": [
          "bulgogi",
          "bibimbap",
          "kimchi",
          "croffles",
          "samgyeopsal"
        ],
        "is_control": false,
        "recommendation_source": "model2",
        "last_updated": 1608670658
      }
    ],
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": null,
    "cohort_ids": null
  }
}

Get user properties

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&get_amp_props=true

Example response

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{
  "userData": {
    "recommendations": null,
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": {
      "library": "http/1.0",
      "first_used": "2020-01-13",
      "last_used": "2021-03-24",
      "number_property": 12,
      "boolean_property": true
    },
    "cohort_ids": null
  }
}

Get cohort IDs

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&get_cohort_ids=true

Example response

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{
  "userData": {
    "recommendations": null,
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": null,
    "cohort_ids": ["cohort1", "cohort3", "cohort7"]
  }
}

Get a single computation

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&comp_id=testCompId

Example response

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{
  "userData": {
    "recommendations": null,
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": {
      "computed-prop-2": "3"
    },
    "cohort_ids": null
  }
}

Get all computations

Endpoint

https://profile-api.amplitude.com/v1/userprofile?user_id=testUser&get_computations=true

Example response

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{
  "userData": {
    "recommendations": null,
    "user_id": "testUser",
    "device_id": "ffff-ffff-ffff-ffff",
    "amp_props": {
      "computed-prop-1": "5000000.0",
      "computed-prop-2": "3"
    },
    "cohort_ids": null
  }
}
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