Weather data from .JSON API

Question

Esben 2023-4-26

0
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https://ww2.mathworks.cn/matlabcentral/answers/1953329-weather-data-from-json-api

评论： Esben 2023-4-26

Hi,

Im trying to import the following weather data from an .JSON API. I have tried "webread" on the URL but I dont know how to extract the wheather data values as shown in the table in the bottom of this post.

URL:

https://bank.stat.gl:443/api/v1/da/Greenland/EN/EN30/ENX1SUM.px

JSON query:

{
  "query": [
    {
      "code": "weather station",
      "selection": {
        "filter": "item",
        "values": [
          "5"
        ]
      }
    },
    {
      "code": "time",
      "selection": {
        "filter": "item",
        "values": [
          "0",
          "1",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18",
          "19",
          "2",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25",
          "26",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9"
        ]
      }
    }
  ],
  "response": {
    "format": "px"
  }
}

and I expect the follow table to be imported as shown in the table which was generated on this homepage: https://bank.stat.gl/pxweb/da/Greenland/Greenland__EN__EN30/ENX1SUM.px/table/tableViewLayout1/

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Rik 2023-4-26

在 MATLAB Online 中打开

Your URL doesn't seem to contain the data, but only the row/col headers:

data=webread('https://bank.stat.gl:443/api/v1/da/Greenland/EN/EN30/ENX1SUM.px')
data = struct with fields:
        title: 'Summerede graddageværdier efter vejrstation og tid'
    variables: {2×1 cell}
data.variables{1}.valueTexts
ans = 20×1 cell array
    {'Nanortalik'      }
    {'Qaqortoq'        }
    {'Narsarsuaq'      }
    {'Narsaq'          }
    {'Paamiut'         }
    {'Nuuk'            }
    {'Kapisillit'      }
    {'Maniitsoq'       }
    {'Kangerlussuaq'   }
    {'Sisimiut'        }
    {'Qasigiannguit'   }
    {'Kangaatsiaq'     }
    {'Aasiaat'         }
    {'Ilulissat'       }
    {'Qeqertarsuaq'    }
    {'Uummannaq'       }
    {'Upernavik'       }
    {'Qaanaaq'         }
    {'Tasiilaq'        }
    {'Ittoqqortoormiit'}
data.variables{2}.valueTexts
ans = 27×1 cell array
    {'1995'}
    {'1996'}
    {'1997'}
    {'1998'}
    {'1999'}
    {'2000'}
    {'2001'}
    {'2002'}
    {'2003'}
    {'2004'}
    {'2005'}
    {'2006'}
    {'2007'}
    {'2008'}
    {'2009'}
    {'2010'}
    {'2011'}
    {'2012'}
    {'2013'}
    {'2014'}
    {'2015'}
    {'2016'}
    {'2017'}
    {'2018'}
    {'2019'}
    {'2020'}
    {'2021'}

Esben 2023-4-26

Thanks for the asnswer @Rik. I will ask the API provider why there is no data :)

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Weather data from .JSON API

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