How to generate new client code for communication with Opik backend

Pre-requirements

For either the automatic script or the manual steps:

You'll need to install the fern SDK: https://github.com/fern-api/fern

This is a one time process in the local machine generating the code.

Automatic process

[!IMPORTANT] You should generally run this script instead of manual steps below. The only pre-requirement is installing the fern SDK.

The following script automates this whole process:

bash

./scripts/generate_openapi.sh

You simply need to run it from the repository base directory.

Manual process

These are the manual steps (not recommended), as alternative to the automatic script. In this case, it's also a pre-requirement to install the fern SDK. Steps:

Run Opik locally using ./opik.sh.
Go to http://localhost:3003/ (URL for backend API specification)
Download openapi specification file - openapi.yaml
Put this file into code_generation/fern/openapi/openapi.yaml (overwrite it).

Note that this path contains the version of the schema from which the code in src/opik/rest_api for the SDK was generated. Therefore, it might not be the latest version of the schema.
Run fern generate from inside code_generation/fern folder. This will generate a python code inside the directory called sdks near the fern one.
Replace content of src/opik/rest_api with the python package inside sdks (there will be few nested directories, navigate until you find python files)
Run git diff --name-only | xargs pre-commit run --files to format only changed files