gh_get_route() produces encoding error

[joshpersi]

Hello,

When I run the following code:

library(graphhopper)

key <- "your-api-key" ## with 'your-api-key' is replaced with my 36-character-long graphhopper api with hyphens included
Sys.setenv(GH_API_KEY = key)

gh_set_api_url("https://graphhopper.com/api/1/")

start_point <- c(52.592204, 13.414307)
end_point <- c(52.539614, 13.364868)

gh_get_route(list(start_point, end_point)) %>%
  gh_as_sf()

I get the following error:
No encoding supplied: defaulting to UTF-8. Error in decode.default(path$points) : I don't know how to decode this object

Would anyone be able to help me understand this error? I'm a first-time API user so my gut is telling me I'm somehow using the API wrong.

Many thanks for your help,

Josh

[crazycapivara]

@josh-persi Did you install the latest version from Github with remotes::install_github("crazycapivara/graphhopper-r"), because there is an issue with the release on CRAN when not using a local graphhopper instance.
What does gh_get_route(list(start_point, end_point)) return without trying to parse the output?

[joshpersi]

Thanks @crazycapivara, that fixed my issue!

[thomarse-ef]

I was also struggling to use the Graphopper web service but this solved my problem. @crazycapivara would it be possible to add this example (including instruction to install the latest Github version) to the package documentation?