diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 22c4bdb2..c8cca2d8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,5 +10,6 @@ jobs:
   test:
     uses: Geode-solutions/actions/.github/workflows/py-test.yml@master
     with:
+      repos: ${{ vars.REPOS }}
       npm: true
     secrets: inherit
diff --git a/.github/workflows/test_pr.yml b/.github/workflows/test_pr.yml
index 43d7b730..464546fc 100644
--- a/.github/workflows/test_pr.yml
+++ b/.github/workflows/test_pr.yml
@@ -8,5 +8,6 @@ jobs:
   test:
     uses: Geode-solutions/actions/.github/workflows/py-test-pr.yml@master
     with:
+      repos: ${{ vars.REPOS }}
       npm: true
     secrets: inherit
diff --git a/app.py b/app.py
index bfa77814..3672fe02 100644
--- a/app.py
+++ b/app.py
@@ -10,7 +10,7 @@
 from src.opengeodeweb_back.routes.models import blueprint_models
 from src.opengeodeweb_back.utils_functions import handle_exception
 from src.opengeodeweb_back import app_config
-from src.opengeodeweb_back.database import initialize_database
+from opengeodeweb_microservice.database.connection import init_database
 
 
 """ Global config """
@@ -58,6 +58,6 @@ def return_error():
 
 # ''' Main '''
 if __name__ == "__main__":
-    initialize_database(app)
+    init_database(app)
     print(f"Python is running in {FLASK_DEBUG} mode")
     app.run(debug=FLASK_DEBUG, host=DEFAULT_HOST, port=PORT, ssl_context=SSL)
diff --git a/pyproject.toml b/pyproject.toml
index f32a7ef6..1a5e40b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,16 +7,14 @@ build-backend = "setuptools.build_meta"
 name = "OpenGeodeWeb-Back"
 version = "0.0.0"
 dynamic = ["dependencies"]
-authors = [
-  { name="Geode-solutions", email="team-web@geode-solutions.com" },
-]
+authors = [{ name = "Geode-solutions", email = "team-web@geode-solutions.com" }]
 description = "OpenGeodeWeb-Back is an open source framework that proposes handy python functions and wrappers for the OpenGeode ecosystem"
 readme = "README.md"
 requires-python = ">=3.9, <3.13"
 classifiers = [
-    "Programming Language :: Python :: 3",
-    "License :: OSI Approved :: MIT License",
-    "Operating System :: OS Independent",
+  "Programming Language :: Python :: 3",
+  "License :: OSI Approved :: MIT License",
+  "Operating System :: OS Independent",
 ]
 
 [project.urls]
@@ -24,7 +22,7 @@ classifiers = [
 "Bug Tracker" = "https://github.com/Geode-solutions/OpenGeodeWeb-Back/issues"
 
 [tool.setuptools.dynamic]
-dependencies = {file = ["requirements.txt"]}
+dependencies = { file = ["requirements.txt"] }
 
 [tool.setuptools.packages.find]
 where = ["src"]
@@ -32,3 +30,4 @@ where = ["src"]
 [tool.setuptools.package-data]
 "opengeodeweb_back.routes.schemas" = ["*.json"]
 "opengeodeweb_back.routes.models.schemas" = ["*.json"]
+opengeodeweb_microservice = ["py.typed"]
diff --git a/requirements.in b/requirements.in
index 5ad963ec..6054d3a7 100644
--- a/requirements.in
+++ b/requirements.in
@@ -8,4 +8,5 @@ fastjsonschema==2.16.2
 Flask[async]==3.0.3
 Flask-Cors==6.0.1
 werkzeug==3.0.3
-Flask-SQLAlchemy==3.1.1
\ No newline at end of file
+Flask-SQLAlchemy==3.1.1
+# OpenGeodeWeb-Microservice
\ No newline at end of file
diff --git a/src/opengeodeweb_back/app_config.py b/src/opengeodeweb_back/app_config.py
index 9f60b76d..453a0eda 100644
--- a/src/opengeodeweb_back/app_config.py
+++ b/src/opengeodeweb_back/app_config.py
@@ -4,7 +4,9 @@
 
 # Third party imports
 # Local application imports
-from .database import DATABASE_FILENAME
+from opengeodeweb_microservice.database.connection import get_database
+
+DATABASE_FILENAME = "project.db"
 
 
 class Config(object):
diff --git a/src/opengeodeweb_back/data.py b/src/opengeodeweb_back/data.py
deleted file mode 100644
index 76889e03..00000000
--- a/src/opengeodeweb_back/data.py
+++ /dev/null
@@ -1,45 +0,0 @@
-from sqlalchemy import String, JSON
-from sqlalchemy.orm import Mapped, mapped_column
-from .database import database, Base
-import uuid
-
-
-class Data(Base):
-    __tablename__ = "datas"
-
-    id: Mapped[str] = mapped_column(
-        String, primary_key=True, default=lambda: str(uuid.uuid4()).replace("-", "")
-    )
-    native_file_name: Mapped[str] = mapped_column(String, nullable=False)
-    viewable_file_name: Mapped[str] = mapped_column(String, nullable=False)
-    geode_object: Mapped[str] = mapped_column(String, nullable=False)
-
-    light_viewable: Mapped[str | None] = mapped_column(String, nullable=True)
-    input_file: Mapped[str | None] = mapped_column(String, nullable=True)
-    additional_files: Mapped[list[str] | None] = mapped_column(JSON, nullable=True)
-
-    @staticmethod
-    def create(
-        geode_object: str,
-        input_file: str | None = None,
-        additional_files: list[str] | None = None,
-    ) -> "Data":
-        input_file = input_file if input_file is not None else ""
-        additional_files = additional_files if additional_files is not None else []
-
-        data_entry = Data(
-            geode_object=geode_object,
-            input_file=input_file,
-            additional_files=additional_files,
-            native_file_name="",
-            viewable_file_name="",
-            light_viewable=None,
-        )
-
-        database.session.add(data_entry)
-        database.session.flush()
-        return data_entry
-
-    @staticmethod
-    def get(data_id: str) -> "Data | None":
-        return database.session.get(Data, data_id)
diff --git a/src/opengeodeweb_back/database.py b/src/opengeodeweb_back/database.py
deleted file mode 100644
index d5e2f0f7..00000000
--- a/src/opengeodeweb_back/database.py
+++ /dev/null
@@ -1,19 +0,0 @@
-from flask import Flask
-from flask_sqlalchemy import SQLAlchemy
-from sqlalchemy.orm import DeclarativeBase
-
-DATABASE_FILENAME = "project.db"
-
-
-class Base(DeclarativeBase):
-    pass
-
-
-database = SQLAlchemy(model_class=Base)
-
-
-def initialize_database(app: Flask) -> SQLAlchemy:
-    database.init_app(app)
-    with app.app_context():
-        database.create_all()
-    return database
diff --git a/src/opengeodeweb_back/geode_functions.py b/src/opengeodeweb_back/geode_functions.py
index a85373f4..de58c47b 100644
--- a/src/opengeodeweb_back/geode_functions.py
+++ b/src/opengeodeweb_back/geode_functions.py
@@ -11,8 +11,8 @@
 # Local application imports
 from .geode_objects import geode_objects_dict
 from . import utils_functions
-from .data import Data
-from .database import database
+from opengeodeweb_microservice.database.data import Data
+from opengeodeweb_microservice.database.connection import get_session
 
 
 def geode_object_value(geode_object: str):
@@ -61,12 +61,12 @@ def load_data(data_id: str) -> Any:
         flask.abort(404, f"Data with id {data_id} not found")
 
     file_absolute_path = data_file_path(data_id, data_entry.native_file_name)
+    print("Loading file: ", file_absolute_path)
+    print("File exists: ", os.path.exists(file_absolute_path))
     return load(data_entry.geode_object, file_absolute_path)
 
 
 def get_data_info(data_id: str) -> Data:
-    from .data import Data
-
     data_entry = Data.get(data_id)
     if not data_entry:
         flask.abort(404, f"Data with id {data_id} not found")
diff --git a/src/opengeodeweb_back/py.typed b/src/opengeodeweb_back/py.typed
new file mode 100644
index 00000000..b648ac92
--- /dev/null
+++ b/src/opengeodeweb_back/py.typed
@@ -0,0 +1 @@
+partial
diff --git a/src/opengeodeweb_back/utils_functions.py b/src/opengeodeweb_back/utils_functions.py
index d27b1246..2830a325 100644
--- a/src/opengeodeweb_back/utils_functions.py
+++ b/src/opengeodeweb_back/utils_functions.py
@@ -16,8 +16,8 @@
 
 # Local application imports
 from . import geode_functions
-from .data import Data
-from .database import database
+from opengeodeweb_microservice.database.data import Data
+from opengeodeweb_microservice.database.connection import get_session
 
 
 def increment_request_counter(current_app: flask.Flask) -> None:
@@ -193,7 +193,9 @@ def save_all_viewables_and_return_info(
     data_entry.viewable_file_name = os.path.basename(saved_viewable_file_path)
     data_entry.light_viewable = os.path.basename(saved_light_viewable_file_path)
 
-    database.session.commit()
+    session = get_session()
+    if session:
+        session.commit()
 
     return {
         "native_file_name": data_entry.native_file_name,
@@ -247,8 +249,14 @@ def generate_native_viewable_and_light_viewable_from_file(
 
     data = geode_functions.load(geode_object, copied_full_path)
 
-    database.session.delete(temp_data_entry)
-    database.session.flush()
+    # Remplacer :
+    # database.session.delete(temp_data_entry)
+    # database.session.flush()
+    # Par :
+    session = get_session()
+    if session:
+        session.delete(temp_data_entry)
+        session.flush()
 
     return save_all_viewables_and_return_info(
         geode_object,
diff --git a/tests/conftest.py b/tests/conftest.py
index 22203f27..e9b41626 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -8,7 +8,7 @@
 
 # Local application imports
 from app import app
-from src.opengeodeweb_back.database import initialize_database
+from opengeodeweb_microservice.database.connection import init_database
 
 TEST_ID = "1"
 
@@ -28,7 +28,10 @@ def copy_data():
     print("Current working directory:", os.getcwd())
     print("Directory contents:", os.listdir("."))
 
-    initialize_database(app)
+    init_database(app)
+    # print(list(app.blueprints.keys()))
+    # for rule in app.url_map.iter_rules():
+    #     print(f"Route: {rule.rule} -> {rule.endpoint}")
 
 
 @pytest.fixture
diff --git a/tests/test_models_routes.py b/tests/test_models_routes.py
index 2bacdc27..687d6027 100644
--- a/tests/test_models_routes.py
+++ b/tests/test_models_routes.py
@@ -3,8 +3,8 @@
 import flask
 
 from src.opengeodeweb_back import geode_functions
-from src.opengeodeweb_back.data import Data
-from src.opengeodeweb_back.database import database
+from opengeodeweb_microservice.database.data import Data
+from opengeodeweb_microservice.database.connection import get_session
 
 
 def test_model_mesh_components(client, test_id):
@@ -33,22 +33,24 @@ def test_extract_brep_uuids(client, test_id):
     brep_filename = "cube.og_brep"
 
     with client.application.app_context():
-        data_entry = Data.create(geode_object="BRep", input_file=brep_filename)
+        data_entry = Data.create(
+            geode_object="BRep",
+            input_file=brep_filename,
+        )
         data_entry.native_file_name = brep_filename
-        database.session.commit()
-
-        data_path = geode_functions.data_file_path(data_entry.id, brep_filename)
-        os.makedirs(os.path.dirname(data_path), exist_ok=True)
-        shutil.copy(f"./tests/data/{brep_filename}", data_path)
-
-    json_data = {"id": data_entry.id}
-    response = client.post(route, json=json_data)
-
-    assert response.status_code == 200
-    uuid_dict = response.json["uuid_dict"]
-    assert isinstance(uuid_dict, dict)
-    expected_keys = {"Block", "Line", "Surface", "Corner"}
-    assert any(key in uuid_dict for key in expected_keys)
-    for key, value in uuid_dict.items():
-        assert isinstance(value, list)
-        assert all(isinstance(v, str) for v in value)
+        session = get_session()
+        if session:
+            session.commit()
+
+        src_path = os.path.join("tests", "data", brep_filename)
+        dest_path = os.path.join(
+            flask.current_app.config["DATA_FOLDER_PATH"], data_entry.id, brep_filename
+        )
+        os.makedirs(os.path.dirname(dest_path), exist_ok=True)
+        shutil.copy2(src_path, dest_path)
+
+        response = client.post(route, json={"id": data_entry.id})
+        assert response.status_code == 200
+        assert "uuid_dict" in response.json
+        uuid_dict = response.json["uuid_dict"]
+        assert isinstance(uuid_dict, dict)
diff --git a/tests/test_routes.py b/tests/test_routes.py
index 9acc5d21..a46984b5 100644
--- a/tests/test_routes.py
+++ b/tests/test_routes.py
@@ -6,9 +6,9 @@
 from werkzeug.datastructures import FileStorage
 
 # Local application imports
+from opengeodeweb_microservice.database.data import Data
+from opengeodeweb_microservice.database.connection import get_session
 from src.opengeodeweb_back import geode_functions, test_utils
-from src.opengeodeweb_back.data import Data
-from src.opengeodeweb_back.database import database
 
 
 def test_allowed_files(client):
@@ -173,17 +173,15 @@ def test_texture_coordinates(client, test_id):
     with client.application.app_context():
         data = Data.create(geode_object="PolygonalSurface3D", input_file="hat.vtp")
         data.native_file_name = "hat.vtp"
-        database.session.commit()
+        session = get_session()
+        if session:
+            session.commit()
 
-        data_path = geode_functions.data_file_path(data.id, "hat.vtp")
-        print(data_path)
+        data_path = geode_functions.data_file_path(data.id, data.native_file_name)
         os.makedirs(os.path.dirname(data_path), exist_ok=True)
         shutil.copy("./tests/data/hat.vtp", data_path)
-
-    response = client.post(
-        "/texture_coordinates",
-        json={"id": data.id},
-    )
+        assert os.path.exists(data_path), f"File not found at {data_path}"
+    response = client.post("/texture_coordinates", json={"id": data.id})
     assert response.status_code == 200
     texture_coordinates = response.json["texture_coordinates"]
     assert type(texture_coordinates) is list
@@ -197,13 +195,14 @@ def test_vertex_attribute_names(client, test_id):
     with client.application.app_context():
         data = Data.create(geode_object="PolygonalSurface3D", input_file="test.vtp")
         data.native_file_name = "test.vtp"
-        database.session.commit()
+        session = get_session()
+        if session:
+            session.commit()
 
-        data_path = geode_functions.data_file_path(data.id, "test.vtp")
+        data_path = geode_functions.data_file_path(data.id, data.native_file_name)
         os.makedirs(os.path.dirname(data_path), exist_ok=True)
-        if os.path.exists("./tests/data/hat.vtp"):
-            shutil.copy("./tests/data/hat.vtp", data_path)
-
+        shutil.copy("./tests/data/test.vtp", data_path)
+        assert os.path.exists(data_path), f"File not found at {data_path}"
     response = client.post(route, json={"id": data.id})
     assert response.status_code == 200
     vertex_attribute_names = response.json["vertex_attribute_names"]
@@ -218,12 +217,14 @@ def test_polygon_attribute_names(client, test_id):
     with client.application.app_context():
         data = Data.create(geode_object="PolygonalSurface3D", input_file="test.vtp")
         data.native_file_name = "test.vtp"
-        database.session.commit()
+        session = get_session()
+        if session:
+            session.commit()
 
-        data_path = geode_functions.data_file_path(data.id, "test.vtp")
+        data_path = geode_functions.data_file_path(data.id, data.native_file_name)
         os.makedirs(os.path.dirname(data_path), exist_ok=True)
-    shutil.copy("./tests/data/test.vtp", data_path)
-
+        shutil.copy("./tests/data/test.vtp", data_path)
+        assert os.path.exists(data_path), f"File not found at {data_path}"
     response = client.post(route, json={"id": data.id})
     assert response.status_code == 200
     polygon_attribute_names = response.json["polygon_attribute_names"]
@@ -238,13 +239,16 @@ def test_polyhedron_attribute_names(client, test_id):
     with client.application.app_context():
         data = Data.create(geode_object="PolyhedralSolid3D", input_file="test.vtu")
         data.native_file_name = "test.vtu"
-        database.session.commit()
+        session = get_session()
+        if session:
+            session.commit()
 
-        data_path = geode_functions.data_file_path(data.id, "test.vtu")
+        data_path = geode_functions.data_file_path(data.id, data.native_file_name)
         os.makedirs(os.path.dirname(data_path), exist_ok=True)
         shutil.copy("./tests/data/test.vtu", data_path)
-
+        assert os.path.exists(data_path), f"File not found at {data_path}"
     response = client.post(route, json={"id": data.id})
+    print(response.json)
     assert response.status_code == 200
     polyhedron_attribute_names = response.json["polyhedron_attribute_names"]
     assert type(polyhedron_attribute_names) is list
diff --git a/tests/test_utils_functions.py b/tests/test_utils_functions.py
index 8f748bba..c7e8bce7 100644
--- a/tests/test_utils_functions.py
+++ b/tests/test_utils_functions.py
@@ -8,8 +8,8 @@
 import uuid
 
 # Local application imports
-from src.opengeodeweb_back.database import database
-from src.opengeodeweb_back.data import Data
+from opengeodeweb_microservice.database.data import Data
+from opengeodeweb_microservice.database.connection import get_session
 from src.opengeodeweb_back import geode_functions, utils_functions
 
 
@@ -143,7 +143,8 @@ def test_save_all_viewables_commits_to_db(client):
         db_entry_before = Data.get(data_id)
         assert db_entry_before is not None
         assert db_entry_before.native_file_name == result["native_file_name"]
-        database.session.rollback()
+        session = get_session()
+        session.rollback()
         db_entry_after = Data.get(data_id)
         assert (
             db_entry_after is not None