Description
The DescribeDatasets service enables user to get information metadata about the datasets corresponding to the routing databases added to the Spectrum Technology Platform server. The response will be analogous with the metadata information present in the dataset path.
This feature is available as REST service only.
HTTP GET URL Format
All Datasets: The following format is used for HTTP GET requests for all datasets.
http://<server>:<port>/rest/Spatial/erm/v1/datasets.jsonSingle Dataset: The following format is used for HTTP GET requests for a single dataset.
http://<server>:<port>/rest/Spatial/erm/v1/datasets/<dataset_ID>.jsonThe dataset_ID is the ‘id’ corresponding to the elements in the ‘dataSets’ array from the DescribeDatabases service.
Response
The response of this service is a JSON array.
For all datasets, the length of the JSON array is the same as the total number of the dataset paths (with metadata available) added against the databases configured in Management Console. If a dataset path does not have metadata available, that entry will be ignored.
For a single dataset, the length of the JSON array will be one if and only if the metadata is available in the dataset path. Else, an empty JSON array will be returned.
Example
Two routing databases have been added in the Spectrum Technology Platform. The name and dataset paths of the databases are as follows:
- US_NE: E:\\db\\ERM-US\\2014.09\\driving\\northeast
- US: E:\\db\\ERM-US\\2014.09\\driving\\midwest and E:\\db\\ERM-US\\2014.09\\driving\\south
Sample Request (All Datasets):
http://<server>:<port>/rest/Spatial/erm/v1/datasets.jsonResponse:
{
"dataSets": [{
"component": "routing",
"description": "USA Test dataset",
"ext": {
"bbox": [68.291015625, 7.9721977144, 97.55859375, 35.4606699515],
"crs": "epsg:4326",
"cvr": true,
"historicTrafficTimeBuckets": {
"amPeak": {
"lowerBound": 700,
"upperBound": 1000
},
"nightTime": {
"lowerBound": 2200,
"upperBound": 400
},
"offPeak": {
"lowerBound": 1000,
"upperBound": 1600
},
"pmPeak": {
"lowerBound": 1600,
"upperBound": 1900
}
},
"locale": "EN",
"type": "driving"
},
"id": "US dataset",
"name": "USA",
"product": "Spatial",
"vintage": "September 2015"
}]
}Sample Request (Single Dataset):
http://<server>:<port>/rest/Spatial/erm/v1/datasets/US%20dataset.jsonResponse:
{
"dataSets": [{
"component": "routing",
"description": "USA Test dataset",
"ext": {
"bbox": [68.291015625, 7.9721977144, 97.55859375, 35.4606699515],
"crs": "epsg:4326",
"cvr": true,
"historicTrafficTimeBuckets": {
"amPeak": {
"lowerBound": 700,
"upperBound": 1000
},
"nightTime": {
"lowerBound": 2200,
"upperBound": 400
},
"offPeak": {
"lowerBound": 1000,
"upperBound": 1600
},
"pmPeak": {
"lowerBound": 1600,
"upperBound": 1900
}
},
"locale": "EN",
"type": "driving"
},
"id": "US dataset",
"name": "USA",
"product": "Spatial",
"vintage": "September 2015"
}]
}