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Overview

The API supports expanding related objects in responses using the expand query parameter. This allows you to retrieve complete objects instead of just their IDs. For example, when fetching an event, you can expand the associated user object to get the full user details instead of just the userId.

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Basic Usage

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Single Object Expansion

For one-to-one relationships, use the expand parameter to include the full object. For example, adding ?expand=user to a request will include the complete user object in the response.

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List Expansion

For one-to-many relationships, the API will return an array of expanded objects. By default, these fields are null (not expanded). For example, adding ?expand=memberships will include an array of all the user’s memberships.

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Advanced Usage

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Nested Expansion

You can expand nested relationships by using dot notation (.). For example, ?expand=memberships.company will expand both the memberships and their associated companies.

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Multiple Expansions

To expand multiple objects simultaneously, use the array syntax with multiple paths: 
?expand[]=user&expand[]=company

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Supported Endpoints

The expand parameter can be used on any endpoint that returns expandable fields, including:
  • List endpoints
  • Create endpoints
  • Update endpoints

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Example

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Request

curl https://api.usertour.io/v1/users/1744521292871a?expand[]=memberships&expand[]=companies&expand[]=memberships.company \
  -H 'Authorization: Bearer <api-key>'

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Response

{
  "id": "1744521292871a",
  "object": "user",
  "attributes": {},
  "createdAt": "2025-04-27T13:39:47.024Z",
  "companies": [
    {
      "id": "1744521292871a",
      "object": "company",
      "attributes": {},
      "createdAt": "2025-04-27T13:39:47.024Z"
    }
  ],
  "memberships": [
    {
      "id": "cma9nhdis0002108kpmr9vfrl",
      "object": "companyMembership",
      "attributes": {
        "role": "admin"
      },
      "createdAt": "2025-05-04T12:51:10.881Z",
      "companyId": "cm9zp4wyh00116pt4o5v5vg5t",
      "userId": "cm9zp4wyb000z6pt484wnbzs7",
      "company": {
        "id": "1744521292871a",
        "object": "company",
        "attributes": {},
        "createdAt": "2025-04-27T13:39:47.024Z"
      }
    }
  ]
}