Initial commit. Basic posting is working.

Author: tobiasschuerg

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto

.gitignore

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+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+.vscode/

InfluxData.h

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+
+class InfluxData
+{
+
+public:
+  InfluxData(String measurement) : _measurement(measurement) {}
+
+  void addTag(String key, String value)
+  {
+    _tags += "," + key + "=" + value;
+  }
+  void addValue(String key, float value)
+  {
+    _values = (_values == "") ? (" ") : (_values += ",");
+    _values += key + "=" + String(value);
+  }
+
+  String toString()
+  {
+    return _measurement + _tags + _values;
+  }
+
+private:
+  String _measurement;
+  String _tags;
+  String _values;
+  
+};

InfluxDb.cpp

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+#include "Arduino.h"
+#include "InfluxDb.h"
+
+Influxdb::Influxdb(const char *host, uint16_t port)
+{
+  _port = String(port);
+  _host = String(host);
+}
+
+void Influxdb::setDb(const char *db)
+{
+  _db = String(db);
+}
+
+boolean Influxdb::post(InfluxData data)
+{
+  return post(data.toString());
+}
+
+boolean Influxdb::post(String data)
+{
+  Serial.print("write ");
+  Serial.println(data);
+
+  HTTPClient http;
+  http.begin("http://" + _host + ":" + _port + "/write?db=" + _db);
+  http.addHeader("Content-Type", "text/plain");
+
+  int httpResponseCode = http.POST(data);
+  Serial.print(" -> Response code ");
+  Serial.println(httpResponseCode);
+
+  String response = http.getString();
+  Serial.println(" -> Response: \"" + response + "\".");
+
+  boolean success;
+  if (httpResponseCode == 204)
+  {
+
+    success = true;
+  }
+  else
+  {
+    Serial.println("#####\nPOST FAILED\n#####");
+    success = false;
+  }
+
+  http.end();
+  return success;
+}

InfluxDb.h

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+
+#include "Arduino.h"
+#include <ESP8266HTTPClient.h>
+#include "InfluxData.h"
+
+class Influxdb
+{
+public:
+  Influxdb(const char *host, uint16_t port);
+
+  void setDb(const char *db);
+
+  boolean post(InfluxData data);
+  boolean post(String data);
+
+private:
+  String _port;
+  String _host;
+  String _db;
+};

LICENSE

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+MIT License
+
+Copyright (c) 2018 Tobias Schürg
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# ESP8266_Influx_DB