Fix the memory leaks in internal JSON parser.

README.md

@@ -1,4 +1,4 @@
-# Google OAuth2.0 Access Token generation Arduino Library v1.0.2
+# Google OAuth2.0 Access Token generation Arduino Library v1.0.3
 
 
 This is the library will create the OAuth2.0 access token used in the Google API's http request (REST).

library.json

@@ -1,6 +1,6 @@
 {
   "name": "ESP Signer",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "keywords": "communication, REST, esp32, esp8266, arduino",
   "description": "The Google OAuth2.0 access token generation for Google REST API's http request.",
   "repository": {

library.properties

@@ -1,6 +1,6 @@
 name=ESP Signer
 
-version=1.0.2
+version=1.0.3
 
 author=Mobizt
 

src/ESPSigner.cpp

@@ -1,13 +1,13 @@
 /**
- * Google's OAuth2.0 Access token Generation class, Signer.h version 1.0.2
+ * Google's OAuth2.0 Access token Generation class, Signer.h version 1.0.3
  * 
  * This library use RS256 for signing algorithm.
  * 
  * The signed JWT token will be generated and exchanged with the access token in the final generating process.
  * 
  * This library supports Espressif ESP8266 and ESP32
  * 
- * Created March 25, 2021
+ * Created April 4, 2021
  * 
  * This work is a part of Firebase ESP Client library
  * Copyright (c) 2021 K. Suwatchai (Mobizt)
@@ -546,7 +546,7 @@ bool ESP_Signer::handleTokenResponse()
     int chunkedDataState = 0;
     int chunkedDataSize = 0;
     int chunkedDataLen = 0;
-    int defaultChunkSize = 2048;
+    int defaultChunkSize = ESP_SIGNER_DEFAULT_RESPONSE_BUFFER_SIZE;
     char *header = nullptr;
     char *payload = nullptr;
     char *pChunk = nullptr;

src/ESPSigner.h

@@ -1,13 +1,13 @@
 /**
- * Google's OAuth2.0 Access token Generation class, Signer.h version 1.0.2
+ * Google's OAuth2.0 Access token Generation class, Signer.h version 1.0.3
  * 
  * This library use RS256 for signing algorithm.
  * 
  * The signed JWT token will be generated and exchanged with the access token in the final generating process.
  * 
  * This library supports Espressif ESP8266 and ESP32
  * 
- * Created March 25, 2021
+ * Created April 4, 2021
  * 
  * This work is a part of Firebase ESP Client library
  * Copyright (c) 2021 K. Suwatchai (Mobizt)

src/SignerCommon.h

@@ -1,6 +1,6 @@
 
 /**
- * Created March 22, 2021
+ * Created April 4, 2021
  * 
  * Copyright (c) 2021 K. Suwatchai (Mobizt)
  * 
@@ -55,6 +55,7 @@
 #define WIFI_RECONNECT_TIMEOUT 10000
 #define MAX_EXCHANGE_TOKEN_ATTEMPTS 5
 #define ESP_DEFAULT_TS 1510644967
+#define ESP_SIGNER_DEFAULT_RESPONSE_BUFFER_SIZE 2560
 
 enum esp_signer_mem_storage_type
 {