3.7.0

Features

• #125 - Added credentials to the InfluxDB 1.x validation endpoint (/ping). To leverage this, enable ping authentication

Fixes

• #129 - Updated InfluxDB 2 Cloud CA certificate to trust servers from all cloud providers (AWS, Azure, GCP)

3.6.1

Fixes

• #121 - Fixed compile error in case of warning is treated as an error
• #122 - Deleting WiFiClient instance to avoid memory leaking when the InfluxDBClient is reinitialized
• #124 - Fixed compilation warnings

Documentation

• #120 - Improved language wording in the Readme

3.6.0

Features

• #117 - Added InfluxDBClient::pointToLineProtocol(const Point& point) for simple creation of InfluxDB line-protocol string with respect to default tags

Fixes

• #114 - Renamed getRemaingRetryTime()->getRemainingRetryTime()
• #115 - Restored writing capability after a connection failure
• #118 - Added escaping of URL params (org, bucket, V1 username and password)

3.5.0

Features

• #107 - Added possibility to set default tags. Use WriteOptions::addDefaultTag() to add a tag that will be added to each written point using the writePoint() function.
• #109 - Retry strategy improvements:
  • Added canSendRequest() function to check if retry strategy is applied
  • Added getRemaingRetryTime() function to get wait time before another request (write/query) can be sent
  • Removed applying retry wait time in case of network error
  • Better explanatory error message when a request is about to be sent in the retry wait state

Fixes

• #108 - Added optional param for specifying decimal places of double: void Point::addField(String name, double value, int decimalPlaces = 2)
• #111 - Fixed blocked writing after another point reached max retry count (#110)

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

3.3.0

• [NEW] Added possibility skip server certification validation (setInsecure() method)
• [NEW] Added possibility to query flux on secured InfuxDB 1.8 using V1 approach
• [NEW] validateConnection() method can be used also for the forward compatibility connection to InfluxDB 1.8
• [FIX] More precise default timestamp generating, up to microseconds
• [FIX] Debug mode compilation error
• [FIX] SecureBatchWrite compile error

3.2.0

• [NEW] Added possibility to read data from InfluxDB using Flux queries
• [NEW] timeSync utility function for synchronous time synchronization using NTP
• [FIX] Properly initialize member variable (#59)
• [FIX] ASCII chars & compilation warning fix (#60)
• [Update] ESP8266 SDK 2.7+ required

3.1.3

• [FIX] SecureWrite crash (#54)

3.1.2

• [FIX] Compilation error on fields order (#43)
• [FIX] Invalid precision constant for microseconds (#49)
• [FIX] Write error in case point has no tags (#50)

Version 3.1.1

[Updated] CA Certificate for SSL