[R] passing API key in leaflet

[Thierry Onkelinx]

Dear all,

I'd like to use the OpenCycleMap as background image in a leaflet map.
This requires an API key. I've stored the key in an environment
variable. Below is a minimal example of the leaflet map. I still get
the "API Key Required" message on the tiles. Any suggestions?

library(leaflet)
leaflet() %>%
  addProviderTiles(
    "Thunderforest.OpenCycleMap",
    options = providerTileOptions(apikey = Sys.getenv("OCM_API"))
  )

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium

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