Package: lab-data-logger
Lab Data Logger ‒ A (distributed) CLI data logger for the (physics) lab.A command-line tool that allows logging of data locally or over a network to a InfluxDB.Installationpip install lab_data_loggerUsageBasic usageLab Data Logger comes with a CLI tool,ldl. To get help with all the available options,
useldl --help.In these examplesSetting up a data sourceFirst, we setup a data service that provides data to be logged. As an example, we use
theRandomNumerServiceprovided. Here, we want to$ ldl services start lab_data_logger.services.RandomNumberService 18862 
Trying to start RandomNumberService from lab_data_logger.services
Started RandomNumberService on port 18862.Setting up the loggerSecond, in order to log te data provided by this service, we first start a logger. We
want the Logger to be accessible at port 18866. We pass the default host port and database
of the InfluxDB explicitly for demonstration:$ ldl logger --port 18866 start --host localhost --port 8083 --database test
Started logger on port 18866.Open another terminal to add the data service to the logger:ldl logger --port 18866 add --interval 3 localhost:18862 rand_num1The second argumentrand_num1is themeasurementthe data is written to. The--intervaloption specifies the logging interval (in this case 3 seconds).If succesful, the terminal where the logger service was started wil printConnected to RANDOMNUMBER on port 18862Show logger status$ ldl logger --port 18866 show
LAB DATA LOGGER
Logging to test on localhost:8083 (processed entry 66).
Pulling from these services:
MEASUREMENT   |     HOSTNAME     |    PORT    |   COUNTER   
-----------   |   ------------   |   ------   |   -------   
rand_num1     |   localhost      |    18862   |        66Creating your own data servicesTo make use of LDL, you have to create your own data services by subclassinglab_data_services.services.LabDataService. An example is given in the examples folder.To start this data service, use the relative path from your current location, for example
from the parent directory of the cloned git repo:$ ldl service run lab_data_logger.examples.const_numbers.ConstNumberService
    Trying to start ConstNumberService from lab_data_logger.examples.const_numbers
    No module lab_data_logger.examples.const_numbers found
    Looking for ConstNumberService in ~/lab_data_logger/examples/const_numbers.py
    Started ConstNumberService on port 18861.AuthorsBastian Leykauf (https://github.com/bleykauf)LicenseLab Data Logger ‒ A (distributed) CLI data logger for the (physics) lab.Copyright © 2020 Bastian LeykaufThis program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.You should have received a copy of the GNU General Public License along with this program. If not, seehttps://www.gnu.org/licenses/.