Traversing with pagination

ChatKitty paginates all collection resources. Requesting a resource collection returns the first page of the collection optionally with HAL hypermedia links to subsequent pages if more pages are available.

Traverse the page links to iterate through a collection.

{
  "_embedded": {
    "users": [
      {
        "id": 1,
        "name": "jane@chatkitty.com",
        "displayName": "Jane Doe",
        "_links": {
          "self": {
            "href": "https://api.chatkitty.com/applications/1/users/1"
          },
          "channels": {
            "href": "https://api.chatkitty.com/applications/1/users/1/channels"
          },
          "application": {
            "href": "https://api.chatkitty.com/applications/1"
          }
        }
      },
      {
        "id": 2,
        "name": "john@chatkitty.com",
        "displayName": "John Doe",
        "_links": {
          "self": {
            "href": "https://api.chatkitty.com/applications/1/users/2"
          },
          "channels": {
            "href": "https://api.chatkitty.com/applications/1/users/2/channels"
          },
          "application": {
            "href": "https://api.chatkitty.com/applications/1"
          }
        }
      }, // Other items in this slice ...
    ]
  },
  "_links": {
    "first": {
      "href": "https://api.chatkitty.com/applications/1/users?page=0&size=25"
    },
    "prev": {
      "href": "https://api.chatkitty.com/applications/1/users?page=0&size=25"
    },
    "self": {
      "href": "https://api.chatkitty.com/applications/1/users?page=1&size=25"
    },
    "next": {
      "href": "https://api.chatkitty.com/applications/1/users?page=2&size=25"
    },
    "last": {
      "href": "https://api.chatkitty.com/applications/1/users?page=2&size=25"
    }
  },
  "page": {
    "size": 25,
    "totalElements": 50,
    "totalPages": 2,
    "number": 0
  }
}

Properties

Embedded properties

A page resource embeds a slice of a resource collection in a JSON array property with the same name as the resource collection. For example, with a collection of users resources, the resource collection name would be users, and the page would include a JSON array in its _embedded property named users, as per the HAL specification.

{
  "_embedded": {
    "users": [
      {
        "id": 1,
        "name": "jane@chatkitty.com",
        "displayName": "Jane Doe",
        "_links": {
          "self": {
            "href": "https://api.chatkitty.com/applications/1/users/1"
          },
          "channels": {
            "href": "https://api.chatkitty.com/applications/1/users/1/channels"
          },
          "application": {
            "href": "https://api.chatkitty.com/applications/1"
          }
        }
      },
      {
        "id": 2,
        "name": "john@chatkitty.com",
        "displayName": "John Doe",
        "_links": {
          "self": {
            "href": "https://api.chatkitty.com/applications/1/users/2"
          },
          "channels": {
            "href": "https://api.chatkitty.com/applications/1/users/2/channels"
          },
          "application": {
            "href": "https://api.chatkitty.com/applications/1"
          }
        }
      }, // Other items in this slice ...
    ]
  }, // Page links and metadata
}

HAL links

Link	Methods	Description
self	GET	Self link to this page.
first	GET	Optional: Link to the first page of this collection. Present if known.
prev	GET	Optional: Link to the previous page of this collection. Present if there are more items before the first item in this page.
next	GET	Optional: Link to the next page of this collection. Present if there are more items after the last item in this page.
last	GET	Optional: Link to the last page of this collection. Present if known.

{
  // ... Embedded properties,
  "_links": {
    "first": {
      "href": "https://api.chatkitty.com/applications/1/users?page=0&size=25"
    },
    "prev": {
      "href": "https://api.chatkitty.com/applications/1/users?page=0&size=25"
    },
    "self": {
      "href": "https://api.chatkitty.com/applications/1/users?page=1&size=25"
    },
    "next": {
      "href": "https://api.chatkitty.com/applications/1/users?page=2&size=25"
    },
    "last": {
      "href": "https://api.chatkitty.com/applications/1/users?page=2&size=25"
    }
  }, // Page metadata ...
}

Page Metadata

Metadata about a page containing its size, total number of elements in the collection, the total number of pages in the collection, and the page number.

Name	Type	Description
size	Int	The number of elements in this page.
number	Int	Optional: The zero-based index of this page. Present if known.
totalElements	Long	Optional: The total number of elements in the collection. Present if known.
totalPages	Int	Optional: The total number of pages in the collection. Present if known.

{
  // ... Embedded properties and page links,
  "page": {
    "size": 25,
    "totalElements": 50,
    "totalPages": 2,
    "number": 0
  }
}