Working

climate-server.go

@@ -32,6 +32,7 @@ func teardown() {
 func startServer() {
 	port := "8001"
 	MainRouter.setGet("/", showCharts)
+	MainRouter.setGet("/data", sendData)
 	MainRouter.setPost("/", saveSnapshot)
 	fmt.Printf("Listening on port %s...\n", port)
 	log.Fatal(http.ListenAndServe(":" + port, nil))
@@ -42,17 +43,25 @@ func showCharts(w http.ResponseWriter, r *http.Request) error {
 	return err
 }
 
+func sendData(w http.ResponseWriter, r *http.Request) error {
+	records, err := getSnapshotRecordsFromDb(50)
+	if err != nil {
+		return fmt.Errorf("couldn't read rows from the database: %w", err)
+	}
+	json, err := createJsonFromSnapshotRecords(records)
+	if err != nil {
+		return fmt.Errorf("couldn't create a json from the records: %w", err)
+	}
+	_, err = fmt.Fprintf(w, string(json))
+	return err
+}
+
 func saveSnapshot(w http.ResponseWriter, r *http.Request) error {
-	snapshotSub, err := createSnapshotFromJson(r.Body)
+	snapshotSub, err := createSnapshotSubFromJsonBodyStream(r.Body)
 	if err != nil {
 		return fmt.Errorf("couldn't create snapshot from JSON: %w", err)
 	}
-	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)
-	_, err = ClimateDb.Query(query)
+	err = writeSnapshotToDb(snapshotSub)
 	if err != nil {
 		return fmt.Errorf("couldn't submit snapshot into the database: %w", err)
 	}