weatherstation/firmware/libraries/ESP8266_Influxdb/CHANGELOG.md

Changelog

3.12.1 [2022-08-29]

Fixes

• 193 - Automatically adjusting point timestamp according to the setting of write precision.

3.12.0 [2022-03-21]

Features

• 185 - Added diagnostic server connection state getter bool InfluxDBClient::isConnected()

3.11.0 [2022-02-18]

Features

• 174,181 - All API methods with a string param allow specifying string by all basic types:
• Arduino String class
• C char * or char[]
• Flash string using F,PSTR or FPSTR macros

Fixes

• 176 - Cleared all compiler warnings

3.10.0 [2022-01-20]

Features

• 167 - Added InfluxDBClient::writeRecord(const char *record).
• 167 - Added possibility to disable retrying by setting maxRetryAttempts to zero: client.setWriteOptions(WriteOptions().maxRetryAttempts(0));
• 172 - Added directly streaming batch for write. It can be enabled by InfluxDBClient::setStreamWrite(bool enable = true). Writing by streaming lines of batch saves RAM as it sends data without allocating a buffer. On the other hand, this way of writing is about half times slower than the classic way, when allocating the buffer for writing the whole batch.
• 172 - Allowing larger batch size, > 255.
• 173 - Added Flux query parameters. Now supported by InfluxDB Cloud only.

3.9.0 [2021-09-17]

Features

• #147 - Updated InfluxDB 2 Cloud CA root certificate to ISRG Root X1.
  Current InfluxDB 2 Cloud CA root certificate DST Root CA X3 expires on September 30th 2021!
• #157 - Added Buckets sub-client for managing buckets in InfluxDB 2.

Fixes

• #150 - HTTPOptions::httpReadTimeout is also set as the connect timeout for HTTP connection on ESP32. It also works for HTTPS connection since ESP32 Arduino Core 2.0.0.
• #156 - Correctly rounding writeBufferSize, when bufferSize/batchSize >= 256.
• #162 - Fixed flushing of not full buffer after the flush timeout.

Documentation

• #163 - More precise description of supported devices.

3.8.0 [2021-04-01]

Features

• #143 - InfluxDBClient::setInsecure now works also for ESP32. Requires Arduino ESP32 SDK 1.0.5 or higher

Documentation

• #134:
  • Added untrusted connection (skipping certificate validation) info to Readme
  • SecureWrite and SecureBatchWrite demos enhanced with example about using untrusted connection
  • Various fixes of typos

Fixes

• #137 - Fixed parsing Flux response with unexpected annotations

3.7.0 [2020-12-24]

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 [2020-11-30]

Features

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

Doc

• #120 - Improved language wording in the Readme

3.6.0 [2020-11-10]

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, bucker, V1 username and pass)

3.5.0 [2020-10-30]

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 [2020-10-02]

Features

• #89 - ESP8266 only - Added Max Fragment Length Negotiation for TLS communication to reduce memory allocation. If server supports MFLN, it saves ~10kB. Standalone InfluxDB OSS server doesn't support MFLN, 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 (exponential 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

Version 3.3.0 (2020-07-07)

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

Version 3.2.0 (2020-06-09)

• [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

Version 3.1.3 (2020-04-27)

• [FIX] SecureWrite crash (#54)

Version 3.1.2 (2020-04-18)

• [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 (2020-04-06)

• [Updated] CA Certificate for SSL (#38)

Version 3.1.0 (2020-03-12)

• [NEW] Added User-agent header
• [FIX] status code check when pinging an InfluxDB version 1.x instance

Version 3.0.0 (2020-02-11)

• New API with similar keywords as other official InfluxDB clients
• Richer set of data types for fields and timestamp methods
• Advanced features, such as implicit batching, automatic retrying on server back-pressure and connection failure, along with secured communication over TLS supported for both devices and authentication
• Special characters escaping
• Backward support for original API of V1/V2