Mqtt common (#98)

Commits missing from original PR

Author: gguuss

examples/Esp32-lwmqtt/esp32-mqtt.h

@@ -15,7 +15,7 @@
 // This file contains static methods for API requests using Wifi / MQTT
 #ifndef __ESP32_MQTT_H__
 #define __ESP32_MQTT_H__
-#include <String.h>
+
 #include <Client.h>
 #include <WiFi.h>
 #include <WiFiClientSecure.h>
@@ -93,6 +93,10 @@ void publishTelemetry(String data) {
   mqtt->publishTelemetry(data);
 }
 
+void publishTelemetry(String subfolder, String data) {
+  mqtt->publishTelemetry(subfolder, data);
+}
+
 void connect() {
   connectWifi();
   mqtt->mqttConnect();
@@ -110,4 +114,4 @@ void setupCloudIoT() {
   mqtt = new CloudIoTCoreMqtt(mqttClient, netClient, device);
   mqtt->startMQTT();
 }
-#endif //__ESP32_MQTT_H__
+#endif //__ESP32_MQTT_H__

examples/Esp8266-lwmqtt/esp8266_mqtt.h

@@ -63,9 +63,11 @@ String getJwt() {
 
 void setupCert() {
   // Set CA cert on wifi client
-  // If using a static (binary) cert:
-  // netClient->setCACert_P(ca_crt, ca_crt_len);
+  // If using a static (binary) cert, uncomment in ciotc_config.h:
+  //((WiFiClientSecure*)netClient)->setCACert_P(ca_crt, ca_crt_len);
+  //return;
 
+  // If using the (preferred) method with the cert in /data (SPIFFS)
   if (!SPIFFS.begin()) {
     Serial.println("Failed to mount file system");
     return;

examples/MKR1000-lwmqtt/mkr1000-mqtt.h

@@ -92,6 +92,10 @@ void publishTelemetry(String data) {
   mqtt->publishTelemetry(data);
 }
 
+void publishTelemetry(String subfolder, String data) {
+  mqtt->publishTelemetry(subfolder, data);
+}
+
 void setupCloudIoT() {
   device = new CloudIoTCoreDevice(
       project_id, location, registry_id, device_id,
@@ -105,4 +109,4 @@ void setupCloudIoT() {
   mqtt = new CloudIoTCoreMqtt(mqttClient, netClient, device);
   mqtt->startMQTT();
 }
-#endif //__MKR1000_MQTT_H__
+#endif //__MKR1000_MQTT_H__