3.4.0

Features

• #89 - ESP8266 only - Added Max Fragment Length Negotiation for TLS communicaton to reduce memory allocation. If server supports MFLN, it saves ~10kB.
  The standalone InfluxDB OSS server doesn't support MFLN, InflluxDB Cloud yes. To leverage MFLN for standalone OSS, a reverse proxy needs to be used.
• #91 - Improved API for settings of write and HTTP options:
  • Introduced WriteOptions to wrap the write related options (write precision, batch-size, etc). It offers fluent style API allowing to change only the required options. InfluxDBClient has overloaded setWriteOptions(const WriteOptions& writeOptions) method.
  • Introduced HTTPOptions to wrap the HTTP related options (e.g. reusing connection). It offers fluent style API allowing to change only the required options. InfluxDBClient has setHTTPOptions(const HTTPOptions& httpOptions) method.
  • Added possibility to set HTTP response read timeout (part of the HTTPOptions).
  • Method InfluxDBClient::void setWriteOptions(WritePrecision precision, uint16_t batchSize = 1, uint16_t bufferSize = 5, uint16_t flushInterval = 60, bool preserveConnection = true) is deprecated and it will be removed in the next release.
• #93 - Write logic improvements
  • Retry on failure logic unification with other InfluxDB clients (exponencial retry, max retry count 3, max retry interval)
  • Better write buffer memory management

Documentation

• #87 - Fixed include file name in the Readme
• #99 - Changed default InfluxDB 2 port from 9999 to 8086 (default since InfluxDB 2 RC0)

Fixes

• #90 - Fixed boolean type recognition of InfluxDB Flux
• #101 - Better memory efficient point line composition