From b1e3d2256a3f891909dacaa229551ba79151cae5 Mon Sep 17 00:00:00 2001
From: Markus Sattler <help.markus+git@gmail.com>
Date: Wed, 9 Dec 2015 13:01:08 +0100
Subject: [PATCH] add errorToString function

---
 .../BasicHttpClient/BasicHttpClient.ino       |  2 +-
 .../ReuseConnection/ReuseConnection.ino       |  2 +-
 .../StreamHttpClient/StreamHttpClient.ino     |  2 +-
 .../src/ESP8266HTTPClient.cpp                 | 27 +++++++++++++++++++
 .../ESP8266HTTPClient/src/ESP8266HTTPClient.h |  2 ++
 5 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/libraries/ESP8266HTTPClient/examples/BasicHttpClient/BasicHttpClient.ino b/libraries/ESP8266HTTPClient/examples/BasicHttpClient/BasicHttpClient.ino
index 8e2b5d2f4..d3a5fbc7d 100644
--- a/libraries/ESP8266HTTPClient/examples/BasicHttpClient/BasicHttpClient.ino
+++ b/libraries/ESP8266HTTPClient/examples/BasicHttpClient/BasicHttpClient.ino
@@ -61,7 +61,7 @@ void loop() {
                 USE_SERIAL.println(payload);
             }
         } else {
-            USE_SERIAL.print("[HTTP] GET... failed, no connection or no HTTP server\n");
+            USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
         }
 
         http.end();
diff --git a/libraries/ESP8266HTTPClient/examples/ReuseConnection/ReuseConnection.ino b/libraries/ESP8266HTTPClient/examples/ReuseConnection/ReuseConnection.ino
index 36c189cb3..35babdc33 100644
--- a/libraries/ESP8266HTTPClient/examples/ReuseConnection/ReuseConnection.ino
+++ b/libraries/ESP8266HTTPClient/examples/ReuseConnection/ReuseConnection.ino
@@ -56,7 +56,7 @@ void loop() {
                 http.writeToStream(&USE_SERIAL);
             }
         } else {
-            USE_SERIAL.print("[HTTP] GET... failed, no connection or no HTTP server\n");
+            USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
         }
 
         http.end();
diff --git a/libraries/ESP8266HTTPClient/examples/StreamHttpClient/StreamHttpClient.ino b/libraries/ESP8266HTTPClient/examples/StreamHttpClient/StreamHttpClient.ino
index 7f6c37872..2e7f4487d 100644
--- a/libraries/ESP8266HTTPClient/examples/StreamHttpClient/StreamHttpClient.ino
+++ b/libraries/ESP8266HTTPClient/examples/StreamHttpClient/StreamHttpClient.ino
@@ -90,7 +90,7 @@ void loop() {
 
             }
         } else {
-            USE_SERIAL.print("[HTTP] GET... failed, no connection or no HTTP server\n");
+            USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
         }
 
         http.end();
diff --git a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp
index 37b71dbc1..5561c62ae 100644
--- a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp
+++ b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp
@@ -454,6 +454,33 @@ String HTTPClient::getString(void) {
     return sstring;
 }
 
+/**
+ * converts error code to String
+ * @param error int
+ * @return String
+ */
+String HTTPClient::errorToString(int error) {
+    switch(error) {
+        case HTTPC_ERROR_CONNECTION_REFUSED:
+            return String("connection refused");
+        case HTTPC_ERROR_SEND_HEADER_FAILED:
+            return String("send header failed");
+        case HTTPC_ERROR_SEND_PAYLOAD_FAILED:
+            return String("send payload failed");
+        case HTTPC_ERROR_NOT_CONNECTED:
+            return String("not connected");
+        case HTTPC_ERROR_CONNECTION_LOST:
+            return String("connection lost");
+        case HTTPC_ERROR_NO_STREAM:
+            return String("no stream");
+        case HTTPC_ERROR_NO_HTTP_SERVER:
+            return String("no HTTP server");
+        default:
+            return String();
+    }
+}
+
+
 /**
  * adds Header to the request
  * @param name
diff --git a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
index a455192ed..5d3fc51bc 100644
--- a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
+++ b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
@@ -147,6 +147,8 @@ class HTTPClient {
         int writeToStream(Stream * stream);
         String getString(void);
 
+        String errorToString(int error);
+
     protected:
 
         struct RequestArgument {