CMD Datasets

Using the ‘Explore our data’ services you can request data from a specific version of a dataset. This is done with a GET request providing a single dimension option for each dimension. The URL follows the following structure:

/datasets/{datasetId}/editions/{edition}/versions/{version}/observations?time={timeLabel}&geography={geographyID}&dimension3={dimension3ID}&dimension4={dimension4ID}...

Example URI;

/datasets/cpih01/editions/time-series/versions/6/observations?time=Oct-11&geography=K02000001&aggregate=cpih1dim1A0

As well as the requested data, the response provides links to code lists for individual items requested, any observation level metadata/information (e.g coefficients of variation) and links to original dataset and complete metadata.

{
    "dimensions": {
        "aggregate": {
            "option": {
                "href": "https://api.beta.ons.gov.uk/v1/code-lists/cpih1dim1aggid/codes/cpih1dim1A0",
                "id": "cpih1dim1A0"
            }
        },
        "geography": {
            "option": {
                "href": "https://api.beta.ons.gov.uk/v1/code-lists/uk-only/codes/K02000001",
                "id": "K02000001"
            }
        },
        "time": {
            "option": {
                "href": "https://api.beta.ons.gov.uk/v1/code-lists/time/codes/Mar-18",
                "id": "Mar-18"
            }
        }
    },
    "limit": 10000,
    "links": {
        "dataset_metadata": {
            "href": "https://api.beta.ons.gov.uk/v1/datasets/cpih01/editions/time-series/versions/6/metadata"
        },
        "self": {
            "href": "https://api.beta.ons.gov.uk/v1/datasets/cpih01/editions/time-series/versions/6/observations?time=Mar-18&aggregate=cpih1dim1A0&geography=K02000001"
        },
        "version": {
            "href": "https://api.beta.ons.gov.uk/v1/datasets/cpih01/editions/time-series/versions/6",
            "id": "6"
        }
    },
    "observations": [
        {
            "observation": "105.1"
        }
    ],
    "offset": 0,
    "total_observations": 1,
    "unit_of_measure": "Index: 2015=100"
}

Time

The time dimension is treated slightly differently from all other dimensions and you need to use the time label, rather than the ID. This is beacause all IDs for a certain ‘type’ of time, e.g Months, are currently the same.

Wildcard

This endpoint allows a single dimension to be replaced with a wildcard (‘*’) to return all values for this dimension.

Example URI

/datasets/cpih01/editions/time-series/versions/6/observations?time=*&aggregate=cpih1dim1A0&geography=K02000001

This is currently limited to 10,000 observations.