Updated AutoConnectWithFSParameters to toggle between ArduinoJson5 and ArduinoJson6

examples/AutoConnectWithFSParameters/AutoConnectWithFSParameters.ino

@@ -1,7 +1,5 @@
 #include <FS.h>                   //this needs to be first, or it all crashes and burns...
-
 #include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino
-
 //needed for library
 #include <DNSServer.h>
 #include <ESP8266WebServer.h>
@@ -9,6 +7,9 @@
 
 #include <ArduinoJson.h>          //https://github.com/bblanchon/ArduinoJson
 
+//Comment out this line if you are still using ArduinoJsonV5
+#define UseJsonV6
+
 //define your default values here, if there are different values in config.json, they are overwritten.
 char mqtt_server[40];
 char mqtt_port[6] = "8080";
@@ -23,7 +24,6 @@ void saveConfigCallback () {
   shouldSaveConfig = true;
 }
 
-
 void setup() {
   // put your setup code here, to run once:
   Serial.begin(115200);
@@ -48,16 +48,22 @@ void setup() {
         std::unique_ptr<char[]> buf(new char[size]);
 
         configFile.readBytes(buf.get(), size);
+
+#ifdef UseJsonV6
+        DynamicJsonDocument json(1024);
+        auto deserializeError = deserializeJson(json, buf.get());
+        serializeJson(json, Serial);
+        if ( ! deserializeError ) {
+#else
         DynamicJsonBuffer jsonBuffer;
         JsonObject& json = jsonBuffer.parseObject(buf.get());
         json.printTo(Serial);
         if (json.success()) {
+#endif
           Serial.println("\nparsed json");
-
           strcpy(mqtt_server, json["mqtt_server"]);
           strcpy(mqtt_port, json["mqtt_port"]);
           strcpy(blynk_token, json["blynk_token"]);
-
         } else {
           Serial.println("failed to load json config");
         }
@@ -69,8 +75,6 @@ void setup() {
   }
   //end read
 
-
-
   // The extra parameters to be configured (can be either global or just in the setup)
   // After connecting, parameter.getValue() will get you the configured value
   // id/name placeholder/prompt default length
@@ -86,8 +90,8 @@ void setup() {
   wifiManager.setSaveConfigCallback(saveConfigCallback);
 
   //set static ip
-  wifiManager.setSTAStaticIPConfig(IPAddress(10,0,1,99), IPAddress(10,0,1,1), IPAddress(255,255,255,0));
-  
+  wifiManager.setSTAStaticIPConfig(IPAddress(10, 0, 1, 99), IPAddress(10, 0, 1, 1), IPAddress(255, 255, 255, 0));
+
   //add all your parameters here
   wifiManager.addParameter(&custom_mqtt_server);
   wifiManager.addParameter(&custom_mqtt_port);
@@ -99,7 +103,7 @@ void setup() {
   //set minimu quality of signal so it ignores AP's under that quality
   //defaults to 8%
   //wifiManager.setMinimumSignalQuality();
-  
+
   //sets timeout until configuration portal gets turned off
   //useful to make it all retry or go to sleep
   //in seconds
@@ -124,12 +128,20 @@ void setup() {
   strcpy(mqtt_server, custom_mqtt_server.getValue());
   strcpy(mqtt_port, custom_mqtt_port.getValue());
   strcpy(blynk_token, custom_blynk_token.getValue());
+  Serial.println("The values in the file are: ");
+  Serial.println("\tmqtt_server : " + String(mqtt_server));
+  Serial.println("\tmqtt_port : " + String(mqtt_port));
+  Serial.println("\tblynk_token : " + String(blynk_token));
 
   //save the custom parameters to FS
   if (shouldSaveConfig) {
     Serial.println("saving config");
+#ifdef UseJsonV6
+    DynamicJsonDocument json(1024);
+#else
     DynamicJsonBuffer jsonBuffer;
     JsonObject& json = jsonBuffer.createObject();
+#endif
     json["mqtt_server"] = mqtt_server;
     json["mqtt_port"] = mqtt_port;
     json["blynk_token"] = blynk_token;
@@ -139,19 +151,22 @@ void setup() {
       Serial.println("failed to open config file for writing");
     }
 
+#ifdef UseJsonV6
+    serializeJson(json, Serial);
+    serializeJson(json, configFile);
+#else
     json.printTo(Serial);
     json.printTo(configFile);
+#endif
     configFile.close();
     //end save
   }
 
   Serial.println("local ip");
   Serial.println(WiFi.localIP());
-
 }
 
 void loop() {
   // put your main code here, to run repeatedly:
 
-
 }