python312Packages.langgraph-checkpoint-postgres: init at 1.0.3

{

  lib,

  buildPythonPackage,

  fetchFromGitHub,

  langgraph-checkpoint,

  orjson,

  psycopg,

  langgraph-sdk,

  poetry-core,

  pythonOlder,

  postgresql,

  postgresqlTestHook,

  pytestCheckHook,

  pytest-asyncio,

}:

buildPythonPackage rec {

  pname = "langgraph-checkpoint-postgres";

  version = "1.0.3";

  pyproject = true;

  disabled = pythonOlder "3.10";

  src = fetchFromGitHub {

    owner = "langchain-ai";

    repo = "langgraph";

    rev = "refs/tags/checkpointpostgres==${version}";

    hash = "sha256-U7Bymo+Nj82kwjxN33W2MT10jv+lioZUxIKUt8Yxh/s=";

  };

  postgresqlTestSetupPost = ''

    substituteInPlace tests/conftest.py \

      --replace-fail "DEFAULT_URI = \"postgres://postgres:postgres@localhost:5441/postgres?sslmode=disable\"" "DEFAULT_URI = \"postgres:///$PGDATABASE\""

  '';

  sourceRoot = "${src.name}/libs/checkpoint-postgres";

  build-system = [ poetry-core ];

  dependencies = [

    langgraph-checkpoint

    orjson

    psycopg

  ];

  pythonImportsCheck = [ "langgraph.checkpoint.postgres" ];

  nativeCheckInputs = [

    postgresql

    postgresqlTestHook

    pytest-asyncio

    pytestCheckHook

  ];

  passthru = {

    updateScript = langgraph-sdk.updateScript;

  };

  meta = {

    description = "Library with a Postgres implementation of LangGraph checkpoint saver";

    homepage = "https://github.com/langchain-ai/langgraph/tree/main/libs/checkpoint-postgres";

    changelog = "https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres==${version}";

    license = lib.licenses.mit;

    maintainers = with lib.maintainers; [

      drupol

      sarahec

    ];

  };

}

  langgraph = callPackage ../development/python-modules/langgraph { };

  langgraph-checkpoint-postgres = callPackage ../development/python-modules/langgraph-checkpoint-postgres { };

  langgraph-checkpoint-sqlite = callPackage ../development/python-modules/langgraph-checkpoint-sqlite { };

  langgraph-cli = callPackage ../development/python-modules/langgraph-cli { };