From 2c58108dff1a841fd8344e747b30429b48f6e116 Mon Sep 17 00:00:00 2001
From: Chris Theberge <chris@codeforyou.com>
Date: Sun, 29 Dec 2019 11:07:29 -0500
Subject: [PATCH 1/2] Avoid reading an empty HTTP response on ESP32

---
 InfluxDb.cpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/InfluxDb.cpp b/InfluxDb.cpp
index 4b098aa..1e79c29 100644
--- a/InfluxDb.cpp
+++ b/InfluxDb.cpp
@@ -47,7 +47,7 @@ void Influxdb::setBucket(String bucket) {
 }
 
 /**
- * Set the influxDB port. 
+ * Set the influxDB port.
  * @param port v1.x uses 8086, v2 uses 9999
  */
 void Influxdb::setPort(uint16_t port){
@@ -163,11 +163,21 @@ boolean Influxdb::write(String data) {
   Serial.print(" <-- Response: ");
   Serial.print(httpResponseCode);
 
+#if defined(ESP32)
+  if (http.getSize() > 0) {
+    String response = http.getString();
+    Serial.println(" \"" + response + "\"");
+  }
+  else {
+    Serial.println();
+  }
+#else
   String response = http.getString();
   Serial.println(" \"" + response + "\"");
+#endif
 
   boolean success;
-  if (httpResponseCode == 204) {
+  if (httpResponseCode == HTTP_CODE_NO_CONTENT) {
     success = true;
   } else {
     Serial.println("#####\nPOST FAILED\n#####");

From 044091308779081a8d713396f63d7298aa38d4f5 Mon Sep 17 00:00:00 2001
From: Chris Theberge <chris@codeforyou.com>
Date: Sun, 29 Dec 2019 11:14:48 -0500
Subject: [PATCH 2/2] Add a comment explaining

---
 InfluxDb.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/InfluxDb.cpp b/InfluxDb.cpp
index 1e79c29..804022f 100644
--- a/InfluxDb.cpp
+++ b/InfluxDb.cpp
@@ -164,6 +164,8 @@ boolean Influxdb::write(String data) {
   Serial.print(httpResponseCode);
 
 #if defined(ESP32)
+  // The ESP32 HTTP Lib seems to hang if you call getString if the server has not
+  // written anything in response.
   if (http.getSize() > 0) {
     String response = http.getString();
     Serial.println(" \"" + response + "\"");