Observation Instance – Django REST framework

Get a list of Observation objects.

### Available end points:

- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`

### How to use filters:

These filters can be used like django query filters using __ for related model relationships.

- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`

Filters can be stacked to build an 'AND' relationship. E.g.

- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`

GET /api/v2/observations/12206/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 12206,
    "uuid": "f6b766f9efe5488190fa4e37d0f01473",
    "title": "YET TO BE ARCHVIED: MISR Level 2 TOA/Cloud Albedo Data (MIL2TCAL)",
    "abstract": "Data products produced from the Multi-angle Imaging SpectroRadiometer (MISR), on-board EOS Terra. MISR is a unique instrument that has 9 cameras all pointing towards different directions, taking images in each of blue, green, red and infra-red band spectrum (centre wavelengths are 446, 558, 672 and 867 nm respectively). The information is used to investigate how sunlight scatters in the atmosphere in different natural conditions, and distinguish types of clouds, atmospheric particles and surfaces. The red and infra-red bands are used for vegetated surface identification and marine aerosol studies. The green band is used to study the albedo, while the blue band aids in the determination of particle size of the aerosol. EOS Terra is a satellite in the Earth Observation System, a group of polar-orbiting satellites which are dedicated to study Earth's climate.\r\n\r\n\r\nNOTE 29/10/2015 GAP: this record has been created in anticipation of these data coming over from the QA4ECV group workspace. It may never arrive.",
    "keywords": "MISR",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "underDevelopment",
    "result_field": null,
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3050/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "The data were obtained by the MISR Science Team, which were then downloaded and made available by the Quality Assurance for Essential Climate Variable (QA4ECV) Team to the NEODC for archiving after completeness checks had been carried out using MD5 checksums to ensure bitwise complete transfers.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/10971/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/10968/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/50780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46541/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46546/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46544/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/10975/?format=api",
    "procedureComputation": null,
    "permissions": [],
    "discoveryKeywords": []
}