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Build and install from source

LangStream uses Maven as its build system. When the below script is run the project source will be tested and compiled, and the container images will be built.
Requirements
Docker
Java 17
Git
Python 3.11+ and PIP
Clone the project
This will clone the latest code of the project into the "langstream" folder.
git clone https://github.com/LangStream/langstream
Build the project
These commands will compile source, build the CLI tarball, and install Docker images.
cd langstream
pip install -r requirements.txt
./docker/build.sh
Test local changes with mini-langstream
If you want to test local code changes, you can use mini-langstream.
mini-langstream dev start
This command will build the images in the minikube context and install all the LangStream services with the snapshot image.
Once the cluster is running, if you want to build and load a new version of a specific service, run:
mini-langstream dev build <service>
... or for all the services:
mini-langstream dev build
Locate the CLI
During the build, the latest CLI is created in the bin folder.
./bin/langstream --version
Please note that this CLI uses the conf/cli.yaml file for configuration, and it does not behave the same way as the CLI installed with brew, which uses the $HOME/.langstream/config file with a different format.

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Last modified 1mo ago