fix: error when using sf output for pois (closes #81)

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: openrouteservice
 Title: Openrouteservice API Client
-Version: 0.5.0
+Version: 0.5.1
 Authors@R: person("Andrzej", "Oleś", email = "andrzej.oles@gmail.com", comment = c(ORCID = "0000-0003-0285-2787"), role = c("aut", "cre"))
 Description: The package streamlines access to the services provided by openrouteservice.org.
   It allows you to painlessly query for directions, geocoding, isochrones, time-distance matrices, and POIs.
@@ -13,4 +13,4 @@ Encoding: UTF-8
 LazyData: true
 VignetteBuilder: knitr
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.3.1
+RoxygenNote: 7.3.2

NEWS.md

@@ -1,3 +1,9 @@
+# openrouteservice 0.5.1
+
+## BUG FIXES
+
+- sf output for POIs endpoint (#81)
+
 # openrouteservice 0.5.0
 
 ## NEW FEATURES

R/api_call.R

@@ -236,7 +236,7 @@ parse_content <- function (content,
   if (output=="sf" && is_geojson) {
     res <- tryCatch(geojson_sf(content), error = function(e) stop(e$message,": ", content, call. = FALSE))
 
-    if (endpoint!="geocode") {
+    if (endpoint=="directions") {
       ## convert parsed properties to sf compatible data.frame
       properties <- lapply(parseJSON(content)$features, function(feature) {
         prop_list <- lapply(feature[['properties']],
@@ -248,6 +248,22 @@ parse_content <- function (content,
 
       res[names(properties)] <- properties
     }
+    else if (endpoint!="geocode") {
+      for (i in 1:length(res)) {
+        # attempt to parse JSON strings to R objects
+        if (is.character(res[[i]])) {
+          res[[i]] <- lapply(res[[i]], function(x) {
+            if (is.na(x))
+              NA
+            else
+              parseJSON(x)
+          })
+        }
+      }
+      # use integer indices
+      if ("group_index" %in% names(res))
+        res$group_index <- type.convert(res$group_index, as.is = TRUE)
+    }
 
     return(res)
   }

README.md

@@ -3,8 +3,7 @@
 Status](https://img.shields.io/codecov/c/github/GIScience/openrouteservice-r/master.svg)](https://app.codecov.io/github/GIScience/openrouteservice-r?branch=master)
 [![lifecycle](https://lifecycle.r-lib.org/articles/figures/lifecycle-experimental.svg)](https://lifecycle.r-lib.org/articles/stages.html#experimental)
 
-openrouteservice R client
-=========================
+# openrouteservice R client
 
 *openrouteservice* R package provides easy access to the
 [openrouteservice](https://openrouteservice.org) (ORS) API from R. It
@@ -18,7 +17,8 @@ allows you to painlessly consume the following services:
     (accessibility)
 -   time-distance
     [matrix](https://openrouteservice.org/dev/#/api-docs/v2/matrix/%7Bprofile%7D/post)
--   [snapping](https://openrouteservice.org/dev/#/api-docs/snap) to ways
+-   [snapping](https://openrouteservice.org/dev/#/api-docs/v2/snap/%7Bprofile%7D/post)
+    to ways
 -   [pois](https://openrouteservice.org/dev/#/api-docs/pois/post)
     (points of interest)
 -   SRTM
@@ -28,30 +28,26 @@ allows you to painlessly consume the following services:
     [optimization](https://openrouteservice.org/dev/#/api-docs/optimization/post)
     based on [Vroom](http://vroom-project.org/)
 
-Disclaimer
-----------
+## Disclaimer
 
 By using this package, you agree to the ORS [terms and
 conditions](https://openrouteservice.org/terms-of-service/).
 
-Installation
-------------
+## Installation
 
 The package is not yet available from CRAN, but you can install the
 development version directly from GitHub.
 
     # install.packages("remotes")
     remotes::install_github("GIScience/openrouteservice-r")
 
-Get started
------------
+## Get started
 
 See the package
 [vignette](https://giscience.github.io/openrouteservice-r/articles/openrouteservice.html)
 for an overview of the offered functionality.
 
-Local ORS instance
-------------------
+## Local ORS instance
 
 The default is to fire any requests against the free public services at
 <api.openrouteservice.org>. In order to query a different
@@ -72,8 +68,13 @@ defaults are equivalent of having
                                           optimization = "optimization",
                                           snap = "v2/snap"))
 
-Package News
-------------
+## Package News
+
+### version 0.5.1
+
+#### BUG FIXES
+
+-   sf output for POIs endpoint (#81)
 
 ### version 0.5.0
 
@@ -86,9 +87,3 @@ Package News
 #### NEW FEATURES
 
 -   Enable optimization endpoint.
-
-### version 0.3.3
-
-#### BUG FIXES
-
--   Fixed resolving of URL paths to endpoints.