Got it working!

climate-server.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"log"
+	"net/http"
+)
+
+const DEBUG = true
+
+func main() {
+	err := setup()
+	defer teardown()
+	if err == nil {
+		startServer()
+	}
+}
+
+func setup() error {
+	err := InitDb()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func teardown() {
+	CloseDb()
+}
+
+func startServer() {
+	port := "8001"
+	MainRouter.setGet("/", showCharts)
+	MainRouter.setPost("/", saveSnapshot)
+	fmt.Printf("Listening on port %s...\n", port)
+	log.Fatal(http.ListenAndServe(":" + port, nil))
+}
+
+func showCharts(w http.ResponseWriter, r *http.Request) error {
+	_, err := fmt.Fprint(w, "<h1>Climate Stuff</h1><div>The data will show up here at some stage...</div>")
+	return err
+}
+
+func saveSnapshot(w http.ResponseWriter, r *http.Request) error {
+	snapshotSub, err := createSnapshotFromJson(r.Body)
+	if err != nil {
+		return fmt.Errorf("couldn't create snapshot from JSON: %w", err)
+	}
+	_, err = ClimateDb.Query(
+		fmt.Sprintf("INSERT INTO `snapshots` (`temp`, `humidity`, `co2`, `time`, `id`) VALUES (%v, %v, %v, %v, NULL);",
+			snapshotSub.Temp,
+			snapshotSub.Humidity,
+			snapshotSub.Co2,
+			snapshotSub.Timestamp))
+	if err != nil {
+		return fmt.Errorf("couldn't submit snapshot into the database: %w", err)
+	}
+	return nil
+}