Allow configuring retries with from_config_file

[hterik]

Proposal:
I would like to configure the API url using a config-file, and still have the option to configure the retries parameter in the InfluxDBClient

Current behavior:

1. Calling InfluxDBClient.from_config_file, proxies into _BaseClient._from_config_file.
2. _BaseClient._from_config_file calls _BaseClient constructor without the retries-parameter set, and no other option to tunnel through kwargs.
   

   influxdb-client-python/influxdb_client/client/_base.py

   Lines 169 to 172 in ee24b3e

   	return cls(url, token, debug=debug, timeout=_to_int(timeout), org=org, default_tags=default_tags,
   	enable_gzip=enable_gzip, verify_ssl=_to_bool(verify_ssl), ssl_ca_cert=ssl_ca_cert,
   	connection_pool_maxsize=_to_int(connection_pool_maxsize), auth_basic=_to_bool(auth_basic),
   	profilers=profilers, proxy=proxy)

3. where retries is being read from kwargs, that was never passed in from the calls above:
   

   influxdb-client-python/influxdb_client/client/_base.py

   Line 92 in ee24b3e

   self.retries = kwargs.get('retries', False)

Desired behavior:
Either allow retries to be configured in the config-file, or add an additional parameter to InfluxDBClient.from_config_file that allows this to be set.

Use case:
Client-side retries is always important for a stable system. Without this option, the from_config_file function is very hard to motivate and instead one has call the InfluxDBClient constructor and provide all parameters manually.

[bednar]

Hi @hterik,

thanks for using our client.

I will change the signature of the InfluxDBClient.from_config_file to accept **kwargs which will be passed to the _BaseClient.__init__.

So you will be able to use something like:

InfluxDBClient.from_config_file(retries=WritesRetry(total=3, retry_interval=1, exponential_base=2))

Regards

[bednar]

Hi @hterik,

the proposal is fixed in #510.

You could try a dev version by:

pip install git+https://github.com/influxdata/influxdb-client-python.git@config_env_kwargs

Regards