Merge pull request #74 from m-muecke/examples/plumber

refactor: update plumber example

examples/plumber/Dockerfile

@@ -1,13 +1,14 @@
-
 FROM rhub/r-minimal
 
-RUN apk add --no-cache --update-cache \
-        --repository http://nl.alpinelinux.org/alpine/v3.11/main \
-        autoconf=2.69-r2 \
-        automake=1.16.1-r0 && \
-    # repeat autoconf and automake (under `-t`)
-    # to (auto)remove them after installation
-    installr -d \
-        -t "libsodium-dev curl-dev linux-headers autoconf automake" \
-        -a libsodium \
-        plumber
+RUN installr -d \
+    -t "libsodium-dev curl-dev linux-headers" \
+    -a libsodium \
+    plumber
+
+WORKDIR /app
+
+COPY . .
+
+EXPOSE 8000
+
+ENTRYPOINT ["R", "-e", "pr <- plumber::plumb('plumber.R'); pr$run(host = '0.0.0.0', port = 8000)"]

examples/plumber/plumber.R

@@ -0,0 +1,10 @@
+#* @get /mean
+function(samples = 10) {
+  data <- rnorm(samples)
+  mean(data)
+}
+
+#* @post /sum
+function(a, b) {
+  as.numeric(a) + as.numeric(b)
+}