reverse geocodoing with tidygeocoder and OSM/Nominatim: Get results in latin letters/English?

[werkstattcodes]

First, many thanks for this wonderful package.

I am reverse geocoding coordinates which pertain to addresses in countries where the Cyrillic alphabet is used. I am using tidygeocoder and OSM/Nominatim as a method. Am I correct, that currently it's not possible to specify the output language/alphabet? How can I modify my request in tidygeocoder to get the results/addresses not in Cyrillic but in Latin letters/in English?

As far as I can tell, the relevant property in the Nominatim/OSM API is accept-language (see here and here). But adding it to a tidygeocoder request seems not to work.

library(tidygeocoder)
library(tidyverse)

df_res <- tibble(
  lat=41.992073,
  long=21.429506
) %>% 
  reverse_geocode(.,
                  lat=lat,
                  long=long,
                  address="address",
                  method="osm") 

The resulting address reads as

Шпаркасе, Македонија, Водно, Центар, Скопје, Општина Центар, Град
Скопје, Скопски СР, 1111, Северна Македонија

Modifying the request to (as suggested here):

tibble(
  lat=41.992073,
  long=21.429506
) %>% 
  reverse_geocode(.,
                  lat=lat,
                  long=long,
                  address="address",
                  method="osm",
                  api_options = list(osm_accept_language="en")
  ) 

leads to an error:

Error: Invalid parameter "osm_accept_language" used in the api_options argument. See ?reverse_geo

The error also occurs when using "osm_accept-language". Many thanks!
PS: I had previously posted the same issue on SO but got no response. So, I hope it's ok to file the "issue" here.

[jessecambon]

Hi @werkstattcodes, try using custom_query instead of api_options. That will pass the parameter directly to the Nominatim API (see ?reverse_geo for details).

[werkstattcodes]

Indeed, this works! Many thanks. I had tried it before, but only now figured out that I have to put accept-language in quotation marks. Again, congrats for this great package.

df_res <- tibble(
  lat=41.992073,
  long=21.429506
) %>% 
  reverse_geocode(.,
                  lat=lat,
                  long=long,
                  address="address",
                  method="osm",
                  custom_query  = list("accept-language"="en-US"))

1 42.0 21.4 Sparkasse, Makedonija, Vodno, Centar, Skopje, Municipality of Centar, City of Skopje,~

[jessecambon]

@werkstattcodes awesome, glad it worked. That's interesting that you have to put the parameter name in quotes. I'm guessing that's because it has a hyphen in it.