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Introduction

See Service API Design for the rationale and design details for this api.

Encoding

The primary request and response encoding for the service is JSON. Here's a handy tool to make a blob of JSON more readable: http://jsonformatter.curiousconcept.com/

In responses from the service, dates are serialized as long integers expressing epoch time - the number of seconds elapsed since midnight Coordinated Universal Time (UTC) of January 1, 1970, not counting leap seconds. Here's a handy tool to convert from epoch time to human readable dates: http://www.epochconverter.com/

In requests to the service, dates can be serialized either as long integers expressing epoch time or human readable dates in http://www.ietf.org/rfc/rfc3339.txt format such as '2011-01-31' or '2011-01-31T22:00:00'

Usage Examples

This is a REST api (see Service API Design for more details as to what this means). You can create entities, updated entities, read entities, and delete entities. More advanced querying will be implemented as a separate API. Partial updates (e.g., just updating two fields in a dataset) are not supported. In a nutshell, when you update something like a dataset, you GET the dataset first, modify the properties you want to change, and then send the entire object back to the service so that this revised entity overwrites the previously stored entity.

Get a Dataset

Request

curl -i -H Accept:application/json "http://deflaux-test.appspot.com/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA"

Response

HTTP/1.1 200 OK
ETag: 456728335
Content-Type: application/json
Date: Tue, 01 Feb 2011 18:22:24 GMT
Server: Google Frontend
Cache-Control: private, x-gzip-ok=""
Transfer-Encoding: chunked

{
   "name":"Glioblastoma TCGA",
   "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA/annotations",
   "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA",
   "version":"0.0.1",
   "description":null,
   "status":"Available",
   "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA",
   "etag":"456728335",
   "creator":null,
   "creationDate":1296182238229,
   "releaseDate":null,
   "layers":[
      {
         "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
         "type":"C",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
         "type":"E",
         "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
         "type":"G",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
      }
   ]
}

Get Annotations for a Dataset

Request

curl -i -H Accept:application/json "http://deflaux-test.appspot.com/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA/annotations"

Response

HTTP/1.1 200 OK
ETag: -1919132670
Content-Type: application/json
Date: Tue, 01 Feb 2011 18:24:15 GMT
Server: Google Frontend
Cache-Control: private, x-gzip-ok=""
Transfer-Encoding: chunked

{
   "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA",
   "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA/annotations",
   "etag":"-1919132670",
   "creationDate":null,
   "stringAnnotations":{
      "Disease":[
         "Cancer"
      ],
      "Tumor / Tissue Type":[
         "Glioblastoma"
      ],
      "Species":[
         "Human"
      ],
      "Institution":[
         "TCGA"
      ],
      "Reference / PubMed ID":[
         "18772890"      ]
   },
   "floatAnnotations":{
      "Number of Samples":[
         465.0
      ]
   },
   "dateAnnotations":{

   }
}

Get Datasets

Optional Parameters

  • offset - integer - 1-based pagination offset
  • limit - integer - maximum number of results to return
  • sort - string - the name of the primary field upon which to sort
  • ascending - boolean - whether or not to sort ascending

Request

curl -i -H Accept:application/json "http://deflaux-test.appspot.com/repo/v1/dataset?limit=3"

Response

HTTP/1.1 200 OK
ETag: 22610276
Content-Type: application/json
Date: Tue, 01 Feb 2011 18:07:45 GMT
Server: Google Frontend
Cache-Control: private, x-gzip-ok=""
Transfer-Encoding: chunked
{
   "results":[
      {
         "name":"Pediatric AML TARGET",
         "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYgvcCDA/annotations",
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYgvcCDA",
         "version":"0.0.1",
         "description":null,
         "status":"In Transition",
         "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYgvcCDA",
         "etag":"1703131409",
         "creator":"Soheil Meshinchi",
         "creationDate":1296182253120,
         "releaseDate":null,
         "layers":[
            {
               "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
               "type":"C",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
               "type":"E",
               "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
               "type":"G",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
            }
         ]
      },
      {
         "name":"Flint HS Mice",
         "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQY2q0DDA/annotations",
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQY2q0DDA",
         "version":"0.0.1",
         "description":null,
         "status":"Future",
         "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQY2q0DDA",
         "etag":"1025901212",
         "creator":"Jonathan Flint",
         "creationDate":1296182255070,
         "releaseDate":null,
         "layers":[
            {
               "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
               "type":"C",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
               "type":"E",
               "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
               "type":"G",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
            }
         ]
      },
      {
         "name":"Glioblastoma TCGA",
         "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA/annotations",
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA",
         "version":"0.0.1",
         "description":null,
         "status":"Available",
         "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYseQDDA",
         "etag":"456728335",
         "creator":null,
         "creationDate":1296182238229,
         "releaseDate":null,
         "layers":[
            {
               "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
               "type":"C",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
               "type":"E",
               "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
            },
            {
               "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
               "type":"G",
               "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
            }
         ]
      }
   ],
   "totalNumberOfResults":10,
   "paging":{
      "next":"/repo/v1/dataset?offset=4&limit=3"
   }
}

Create a Dataset

Request:

curl -i -H Accept:application/json -H Content-Type:application/json 
-d '{"name":"test dataset", "creator":"fake creator", "releaseDate":"2009-10-01", "status":"not curated"}' 
http://localhost:8080/repo/v1/dataset

Response

HTTP/1.1 201 Created
ETag: 1736839268
Location: /repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYBAw
Content-Type: application/json
Transfer-Encoding: chunked
Server: Jetty(6.1.x)

{
   "name":"test dataset",
   "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw/annotations",
   "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "version":"0.0.1",
   "creator":"fake creator",
   "description":null,
   "creationDate":1296595870715,
   "status":"not curated",
   "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "etag":"1309185941",
   "releaseDate":1254355200000,
   "layers":[
      {
         "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
         "type":"C",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
         "type":"E",
         "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
         "type":"G",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
      }
   ]
}

Add Annotations to a Dataset

Update a Dataset

Note that the creator and description fields have been changed but all others remain the same.

Request:

curl -i -H Accept:application/json -H Content-Type:application/json -X PUT -H ETag:1309185941 \
-d '{
   "name":"test dataset",
   "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw/annotations",
   "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "version":"0.0.1",
   "creator":"updated creator",
   "description":"I just added a description",
   "creationDate":1296595870715,
   "status":"not curated",
   "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "etag":"1309185941",
   "releaseDate":1254355200000,
   "layers":[
      {
         "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
         "type":"C",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
         "type":"E",
         "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
         "type":"G",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
      }
   ]
}
' http://localhost:8080/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw

Response

HTTP/1.1 200 OK
ETag: -852418664
Content-Type: application/json
Transfer-Encoding: chunked
Server: Jetty(6.1.x)

{
   "name":"test dataset",
   "annotations":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw/annotations",
   "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "version":"0.0.1",
   "creator":"updated creator",
   "description":"I just added a description",
   "creationDate":1296595870715,
   "status":"not curated",
   "uri":"/repo/v1/dataset/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
   "etag":"-852418664",
   "releaseDate":1254355200000,
   "layers":[
      {
         "id":"agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw",
         "type":"C",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyEwsSDUdBRUpET0RhdGFzZXQYAQw"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA",
         "type":"E",
         "uri":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYiaECDA"
      },
      {
         "id":"agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA",
         "type":"G",
         "uri":"/datalayer/agxkZWZsYXV4LXRlc3RyFQsSDUdBRUpET0RhdGFzZXQYmfIBDA"
      }
   ]
}

Delete a Dataset
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