Use Google-Geocode API to get location string from coordinates

Tutorials & Examples
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42

Thanks Bredmich and NCO.
That is a great help.

I did find the list of other location properties so will add them when I have time, they are on the OpenStreetMap wiki pages.
Address Key: https://wiki.openstreetmap.org/wiki/Key:addr
Amenity List: https://wiki.openstreetmap.org/wiki/Key:amenity

43

I´m not sure if this properties are used for the reverse lookup.
I didn´t had any of them in my results.

Here´s a typical result for my lookups:

{"place_id":"#",
"licence":"Data Š OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
"osm_type":"way",
"osm_id":"#",
"lat":"51.#",
"lon":"7.#",
"display_name":"#, # #, #, #, # #, #-#, #, Deutschland",
"address":{"house_number":"#",
"road":"# #",
"suburb":"#",
"city":"#",
"county":"#",
"state_district":"# #",
"state":"#-#",
"postcode":"#",
"country":"Deutschland",
"country_code":"de"}
,"boundingbox":["51.#","51.#","7.#","7.#"]}

Maybe i´ll start logging the raw results to have a look at them later.

44

I had a quick run through my events.log files and found the following:

“junction”
“county”
“hamlet”
“furniture”
“house_number”
“wood”
“fast_food”

There was a complete list here: https://wiki.openstreetmap.org/wiki/Map_Features

45

In the end I just used the display_name

val String result = sendHttpGetRequest(request)
logInfo(“lookupAddress”, result)
val String dis_name = transform(“JSONPATH”, “$.display_name”, result)
val String address = dis_name
return address

Sometimes the postcode drops off the end of the sitemap but I don’t mind.
Thanks for your help

46

Sorry, for bringing this topic up again.
But the code always returns the whole JSON response instead of the transformed string.
Seems that
transform("JSONPATH", "$.XXXXX", result)
does not work correctly

47

Forgot to install the “JSONPath Transformation” extension. Just thought it was enabled by default. Never mind

48

Perfect it work but only for one iPhone,
I copy the code for an 2nd Device, but for both devices google send my the same location name.
What have to be different in the code for the second device?

49

I am struggling with the OpenStreetMap reverse address lookup. When the rule is executed I get the following error:

2021-10-04 21:10:52.013 [ERROR] [internal.handler.ScriptActionHandler] - Script execution of rule with UID 'icloudChristian-1' failed: cannot invoke method public abstract java.lang.String org.openhab.core.items.Item.getName() on null in icloudChristian
javax.script.ScriptException: cannot invoke method public abstract java.lang.String org.openhab.core.items.Item.getName() on null in icloudChristian

Any help to solve this would be highly appreciated.

I use this rule (thanks Bredmich):

val Functions$Function1<GenericItem, String> lookupAddress= [ ChristianiPhone_Location |

    // get lat lon from item
    val PointType location = ChristianiPhone_Location.state as PointType
    val String lat = location.latitude.toString
    val String lon = location.longitude.toString

    // build request
    val String endpoint = 'https://nominatim.openstreetmap.org/reverse'
    val String lang     = 'da-DK'
    val String query    = 'lat=' + lat + '&lon=' + lon + '&accept-language=' + lang + '&format=json&addressdetails=1'
    val String request  = endpoint + '?' + query

    // get result
    val String result  = sendHttpGetRequest(request)
    // logInfo("lookupAddress", result)
    var String road    = transform("JSONPATH", "$.address.road", result)
    var String house   = transform("JSONPATH", "$.address.house_number", result)
    var String city    = transform("JSONPATH", "$.address.city", result)
    var String town    = transform("JSONPATH", "$.address.town", result)
    var String country = transform("JSONPATH", "$.address.country", result)
    var String hide    = 'Danmark' // in result language; hide your home country

    // Empty the Strings if they´re not part of the result and the full result was put into the Strings
    if(road.startsWith("{"))
    {
        road = ''
    } 
    if(house.startsWith("{"))
    {
        house = ''
    }
    if(town.startsWith("{"))
    {
        town = ''
    }
    if(city.startsWith("{"))
    {
        city = ''
    }
    if(country.startsWith("{"))
    {
        country = ''
    }

    // Check if city is empty and fill in town
    if(city == '')
    {
        city = town
    }

    // Check if city is still empty and fill Unknown
    if(city == '')
    {
        city = 'Unknown'
    }

    var String address  = road + ' ' + house + ', ' + city

    // Check if the address starts with comma and only use the city
    if(address.startsWith(",") || address.startsWith(" ,"))
    {
        address = '' + city
    }

    if (country != hide) {
        address = address + ', ' + country
    }

    return address
]

rule "ChristianHjemme"


when

    Item ChristianiPhone_Location changed

then

    // Definition von Zuhause und aktueller Standort
    val PointType homeLocation = new PointType(new DecimalType(55.XXXXX), new DecimalType(12.XXXXX))
    val PointType phoneLocation = ChristianiPhone_Location.state as PointType
    val int distance = phoneLocation.distanceFrom(homeLocation).intValue()

    // Remove _Location from the triggering item and add _Address
    val String updateItem = triggeringItem.name.toString.split("_Location").get(0) + '_Address'

    // Fill in the address into the item
    postUpdate(updateItem, lookupAddress.apply(triggeringItem))

    if(distance < 150)
    {
        iPChristian_Home.postUpdate(ON)
        logDebug("ChristianHome", "Christian er hjemme")
    }
    else
    {
        iPChristian_Home.postUpdate(OFF)
        logDebug("ChristianHome", "Christian er ude")
    }

end

Christian