Remove excessive whitespaces and newlines in json (#1904)

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* remove newlines in json as it is not needed

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Co-authored-by: CaCO3 <caco@ruinelli.ch>

code/components/jomjol_mqtt/server_mqtt.cpp

@@ -57,7 +57,6 @@ void sendHomeAssistantDiscoveryTopic(std::string group, std::string field,
     std::string topicFull;
     std::string configTopic;
     std::string payload;
-    std::string nl = "\n";
 
     configTopic = field;
 
@@ -74,63 +73,62 @@ void sendHomeAssistantDiscoveryTopic(std::string group, std::string field,
     }
 
     /* See https://www.home-assistant.io/docs/mqtt/discovery/ */
-    payload = "{" + nl +
-        "\"~\": \"" + maintopic + "\"," + nl +
-        "\"unique_id\": \"" + maintopic + "-" + configTopic + "\"," + nl +
-        "\"object_id\": \"" + maintopic + "_" + configTopic + "\"," + nl + // This used to generate the Entity ID
-        "\"name\": \"" + name + "\"," + nl +
-        "\"icon\": \"mdi:" + icon + "\"," + nl;        
+    payload = string("{")  +
+        "\"~\": \"" + maintopic + "\","  +
+        "\"unique_id\": \"" + maintopic + "-" + configTopic + "\","  +
+        "\"object_id\": \"" + maintopic + "_" + configTopic + "\","  + // This used to generate the Entity ID
+        "\"name\": \"" + name + "\","  +
+        "\"icon\": \"mdi:" + icon + "\",";        
 
     if (group != "") {
         if (field == "problem") { // Special binary sensor which is based on error topic
-            payload += "\"state_topic\": \"~/" + group + "/error\"," + nl;
-            payload += "\"value_template\": \"{{ 'OFF' if 'no error' in value else 'ON'}}\"," + nl;
+            payload += "\"state_topic\": \"~/" + group + "/error\",";
+            payload += "\"value_template\": \"{{ 'OFF' if 'no error' in value else 'ON'}}\",";
         }
         else {
-            payload += "\"state_topic\": \"~/" + group + "/" + field + "\"," + nl;
+            payload += "\"state_topic\": \"~/" + group + "/" + field + "\",";
         }
     }
     else {
         if (field == "problem") { // Special binary sensor which is based on error topic
-            payload += "\"state_topic\": \"~/error\"," + nl;
-            payload += "\"value_template\": \"{{ 'OFF' if 'no error' in value else 'ON'}}\"," + nl;
+            payload += "\"state_topic\": \"~/error\",";
+            payload += "\"value_template\": \"{{ 'OFF' if 'no error' in value else 'ON'}}\",";
         }
         else {
-            payload += "\"state_topic\": \"~/" + field + "\"," + nl;
+            payload += "\"state_topic\": \"~/" + field + "\",";
         }
     }
 
     if (unit != "") {
-        payload += "\"unit_of_meas\": \"" + unit + "\"," + nl;
+        payload += "\"unit_of_meas\": \"" + unit + "\",";
     }
 
     if (deviceClass != "") {
-        payload += "\"device_class\": \"" + deviceClass + "\"," + nl;
+        payload += "\"device_class\": \"" + deviceClass + "\",";
     }
 
     if (stateClass != "") {
-        payload += "\"state_class\": \"" + stateClass + "\"," + nl;
+        payload += "\"state_class\": \"" + stateClass + "\",";
     } 
 
     if (entityCategory != "") {
-        payload += "\"entity_category\": \"" + entityCategory + "\"," + nl;
+        payload += "\"entity_category\": \"" + entityCategory + "\",";
     } 
 
     payload += 
-        "\"availability_topic\": \"~/" + std::string(LWT_TOPIC) + "\"," + nl +
-        "\"payload_available\": \"" + LWT_CONNECTED + "\"," + nl +
-        "\"payload_not_available\": \"" + LWT_DISCONNECTED + "\"," + nl;
-
-    payload +=
-    "\"device\": {" + nl +
-        "\"identifiers\": [\"" + maintopic + "\"]," + nl +
-        "\"name\": \"" + maintopic + "\"," + nl +
-        "\"model\": \"Meter Digitizer\"," + nl +
-        "\"manufacturer\": \"AI on the Edge Device\"," + nl +
-      "\"sw_version\": \"" + version + "\"," + nl +
-      "\"configuration_url\": \"http://" + *getIPAddress() + "\"" + nl +
-    "}" + nl +
-    "}" + nl;
+        "\"availability_topic\": \"~/" + std::string(LWT_TOPIC) + "\","  +
+        "\"payload_available\": \"" + LWT_CONNECTED + "\","  +
+        "\"payload_not_available\": \"" + LWT_DISCONNECTED + "\",";
+
+    payload += string("\"device\": {")  +
+        "\"identifiers\": [\"" + maintopic + "\"],"  +
+        "\"name\": \"" + maintopic + "\","  +
+        "\"model\": \"Meter Digitizer\","  +
+        "\"manufacturer\": \"AI on the Edge Device\","  +
+      "\"sw_version\": \"" + version + "\","  +
+      "\"configuration_url\": \"http://" + *getIPAddress() + "\""  +
+    "}"  +
+    "}";
 
     MQTTPublish(topicFull, payload, true);
 }

code/main/server_main.cpp

@@ -356,20 +356,18 @@ esp_err_t sysinfo_handler(httpd_req_t *req)
     const char *hostname;
     ESP_ERROR_CHECK(tcpip_adapter_get_hostname(TCPIP_ADAPTER_IF_STA, &hostname));
     
-    zw = "[\
-            {\
-                \"firmware\" : \"" + gitversion + "\",\
-                \"buildtime\" : \"" + buildtime + "\",\
-                \"gitbranch\" : \"" + gitbranch + "\",\
-                \"gittag\" : \"" + gittag + "\",\
-                \"gitrevision\" : \"" + gitrevision + "\",\
-                \"html\" : \"" + htmlversion + "\",\
-                \"cputemp\" : \"" + cputemp + "\",\
-                \"hostname\" : \"" + hostname + "\",\
-                \"IPv4\" : \"" + ip4addr_ntoa(&ip_info.ip) + "\",\
-                \"freeHeapMem\" : \"" + freeheapmem + "\"\
-            }\
-        ]";
+    zw = string("[{") + 
+        "\"firmware\": \"" + gitversion + "\"," +
+        "\"buildtime\": \"" + buildtime + "\"," +
+        "\"gitbranch\": \"" + gitbranch + "\"," +
+        "\"gittag\": \"" + gittag + "\"," +
+        "\"gitrevision\": \"" + gitrevision + "\"," +
+        "\"html\": \"" + htmlversion + "\"," +
+        "\"cputemp\": \"" + cputemp + "\"," +
+        "\"hostname\": \"" + hostname + "\"," +
+        "\"IPv4\": \"" + ip4addr_ntoa(&ip_info.ip) + "\"," +
+        "\"freeHeapMem\": \"" + freeheapmem + "\"" +
+        "}]";
 
     resp_str = zw.c_str();