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How to write my first Web-API script?

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You may start with the examples available on ERA-interim TIGGE sample scripts or by creating your request using our Datasets Web Interface . Please note the following:

1. We strongly advice you to start with a simple request. ( 1-2 parameters 1 time step 1-2  steps etc)
2. In case of Python the request will be a dictionary with "keys" and "values" that represent your selection. (eg "step":"00", "time": 00")
3. The request is strongly connected to the availability of the data
4. The request has a Python dictionary format.
5. You can use Use the example below as a basis to write your own script

          

Code Block
language py
#!/usr/bin/env python from ecmwfapi import ECMWFDataServer server = ECMWFDataServer() server.retrieve({ 'origin' : "stream"kwbc", 'levelist' : "oper200", "'levtype"' : "sfcpl", 'expver' "param": "165.128/41.128prod", "'dataset"' : "interimtigge", "step":'step' : "0/6", "grid"'grid' : "0.755/0.755", 'param' : "131/132", 'time' : "00/06/12/18", 'date' : "002014-10-01", 'type' : "cf", 'class' : "ti", 'target' : "tigge_2014-10-01_00061218.grib" })

ECMWF members (i.e. licence holders, authorised users, staff and members of NHMSs in Member and Co-operating States):

You can use the 'mars' script with the MARS syntax or you can request it from Python using this class:

#!/usr/bin/env python
from ecmwfapi import ECMWFService
  
server = ECMWFService("mars")
server.execute(
    {
    "class": "od"date" : "2013-09-01/to/2013-09-30",
    "type" "date": "20150101",
    "expver": "an1",
    "class" "levtype": "sfc",
    "param": "ei167.128",
    "step": "0/to/240/by/12",
    "stream": "oper",
    "time": "target00",
    "type": "data.gribfc"
    },
    "target.grib")

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