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target-databend

target-databend is a Singer target for Databend.

Build with the Meltano Target SDK.

Installation

pipx install git+https://github.com/mutoulbj/target-databend.git

Configuration

Accepted Config Options

Option Type Description Required Default
host string The hostname of the TargetDatabend server Yes localhost
port integer The port of the TargetDatabend server Yes 3307
user string The username of the TargetDatabend server Yes root
password string The password of the TargetDatabend server Yes
dbname string The name of the TargetDatabend database Yes target_databend
charset string The character set of the TargetDatabend database No utf8

A full list of supported settings and capabilities for this target is available by running:

target-databend --about

Configure using environment variables

This Singer target will automatically import any environment variables within the working directory's .env if the --config=ENV is provided, such that config values will be considered if a matching environment variable is set either in the terminal context or in the .env file.

Usage

You can easily run target-databend by itself or in a pipeline using Meltano.

Executing the Target Directly

target-databend --version
target-databend --help
# Test using the "Carbon Intensity" sample:
tap-carbon-intensity | target-databend --config /path/to/target-databend-config.json

Developer Resources

  • Developer TODO: As a first step, scan the entire project for the text "TODO:" and complete any recommended steps, deleting the "TODO" references once completed.

Initialize your Development Environment

pipx install poetry
poetry install

Create and Run Tests

Create tests within the target_databend/tests subfolder and then run:

poetry run pytest

You can also test the target-databend CLI interface directly using poetry run:

poetry run target-databend --help

Testing with Meltano

Note: This target will work in any Singer environment and does not require Meltano. Examples here are for convenience and to streamline end-to-end orchestration scenarios.

Your project comes with a custom meltano.yml project file already created. Open the meltano.yml and follow any "TODO" items listed in the file.

Next, install Meltano (if you haven't already) and any needed plugins:

# Install meltano
pipx install meltano
# Initialize meltano within this directory
cd target-databend
meltano install

Now you can test and orchestrate using Meltano:

# Test invocation:
meltano invoke target-databend --version
# OR run a test `elt` pipeline with the Carbon Intensity sample tap:
meltano elt tap-carbon-intensity target-databend

SDK Dev Guide

See the dev guide for more instructions on how to use the Meltano SDK to develop your own Singer taps and targets.

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