diff --git a/back/app/core/filter.py b/back/app/core/filter.py
new file mode 100644
index 00000000..26858fe4
--- /dev/null
+++ b/back/app/core/filter.py
@@ -0,0 +1,116 @@
+from collections.abc import Callable, Mapping
+from typing import Any, Optional, Union
+
+from pydantic import ValidationInfo, field_validator
+
+from fastapi_filter.base.filter import BaseFilterModel
+
+_odm_operator_transformer: dict[str, Callable[[Optional[str]], Optional[dict[str, Any]]]] = {
+    "neq": lambda value: {"$ne": value},
+    "gt": lambda value: {"$gt": value},
+    "gte": lambda value: {"$gte": value},
+    "in": lambda value: {"$in": value},
+    "isnull": lambda value: None if value else {"$ne": None},
+    "lt": lambda value: {"$lt": value},
+    "lte": lambda value: {"$lte": value},
+    "not": lambda value: {"$ne": value},
+    "ne": lambda value: {"$ne": value},
+    "not_in": lambda value: {"$nin": value},
+    "nin": lambda value: {"$nin": value},
+    "like": lambda value: {"$regex": f".*{value}.*"},
+    "ilike": lambda value: {"$regex": f".*{value}.*", "$options": "i"},
+    "exists": lambda value: {"$exists": value},
+}
+
+
+class Filter(BaseFilterModel):
+    """Base filter for beanie related filters.
+
+    Example:
+        ```python
+        class MyModel:
+            id: PrimaryKey()
+            name: StringField(null=True)
+            count: IntField()
+            created_at: DatetimeField()
+
+        class MyModelFilter(Filter):
+            id: Optional[int]
+            id__in: Optional[str]
+            count: Optional[int]
+            count__lte: Optional[int]
+            created_at__gt: Optional[datetime]
+            name__ne: Optional[str]
+            name__nin: Optional[list[str]]
+            name__isnull: Optional[bool]
+        ```
+    """
+
+    def sort(self, query):
+        if not self.ordering_values:
+            return query
+        return query.sort(*self.ordering_values)
+
+    @field_validator("*", mode="before")
+    @classmethod
+    def split_str(
+        cls: type["BaseFilterModel"], value: Optional[str], field: ValidationInfo
+    ) -> Optional[Union[list[str], str]]:
+        if (
+            field.field_name is not None
+            and (
+                field.field_name == cls.Constants.ordering_field_name
+                or field.field_name.endswith("__in")
+                or field.field_name.endswith("__nin")
+            )
+            and isinstance(value, str)
+        ):
+            if not value:
+                # Empty string should return [] not ['']
+                return []
+            return list(value.split(","))
+        return value
+
+    def _get_filter_conditions(self, nesting_depth: int = 1) -> list[tuple[Mapping[str, Any], Mapping[str, Any]]]:
+        filter_conditions: list[tuple[Mapping[str, Any], Mapping[str, Any]]] = []
+        for field_name, value in self.filtering_fields:
+            field_value = getattr(self, field_name)
+            if isinstance(field_value, Filter):
+                if not field_value.model_dump(exclude_none=True, exclude_unset=True):
+                    continue
+
+                filter_conditions.append(
+                    (
+                        {field_name: _odm_operator_transformer["neq"](None)},
+                        {"fetch_links": True, "nesting_depth": nesting_depth},
+                    )
+                )
+                for part, part_options in field_value._get_filter_conditions(nesting_depth=nesting_depth + 1):  # noqa: SLF001
+                    for sub_field_name, sub_value in part.items():
+                        filter_conditions.append(
+                            (
+                                {f"{field_name}.{sub_field_name}": sub_value},
+                                {"fetch_links": True, "nesting_depth": nesting_depth, **part_options},
+                            )
+                        )
+
+            elif "__" in field_name:
+                stripped_field_name, operator = field_name.split("__")
+                search_criteria = _odm_operator_transformer[operator](value)
+                filter_conditions.append(({stripped_field_name: search_criteria}, {}))
+            elif field_name == self.Constants.search_field_name and hasattr(self.Constants, "search_model_fields"):
+                search_conditions = [
+                    {search_field: _odm_operator_transformer["ilike"](value)}
+                    for search_field in self.Constants.search_model_fields
+                ]
+                filter_conditions.append(({"$or": search_conditions}, {}))
+            else:
+                filter_conditions.append(({field_name: value}, {}))
+
+        return filter_conditions
+
+    def filter(self, query):
+        data = self._get_filter_conditions()
+        for filter_condition, filter_kwargs in data:
+            query = query.find(filter_condition, **filter_kwargs)
+        return query
diff --git a/back/app/core/models.py b/back/app/core/models.py
index 0d69d1ef..2b77a09c 100644
--- a/back/app/core/models.py
+++ b/back/app/core/models.py
@@ -1,21 +1,66 @@
-from datetime import datetime
+from datetime import datetime, UTC
+from typing import Optional
 
-from beanie import Document
-from pydantic import BaseModel, Field, validator
+from beanie import PydanticObjectId
+from pydantic import BaseModel, Field, computed_field
 
 
-class CrudDocument(Document):
-    _id: str
-    created_at: datetime = Field(default=datetime.utcnow(), nullable=False, title="Créé le")
+class CrudDocument(BaseModel):
+    id: Optional[PydanticObjectId] = Field(alias="_id", default=None)
+    created_at: datetime = Field(default=datetime.now(UTC), nullable=False, title="Créé le")
+#    created_by: str
     updated_at: datetime = Field(default_factory=datetime.utcnow, nullable=False, title="Modifié le")
+#    updated_by: str
 
-    @validator("label", always=True, check_fields=False)
-    def generate_label(cls, v, values, **kwargs):
-        return v
+    @computed_field
+    def label(self) -> str:
+        return self.compute_label()
+
+    def compute_label(self) -> str:
+        return ""
 
     class Settings:
         fulltext_search = []
 
+    @classmethod
+    def _collection_name(cls):
+        return cls.__name__
+
+    @classmethod
+    def _get_collection(cls, db):
+        return db.get_collection(cls._collection_name())
+
+    @classmethod
+    async def create(cls, db, create_schema):
+        values = cls.model_validate(create_schema.model_dump()).model_dump(mode="json")
+        result = await cls._get_collection(db).insert_one(values)
+
+        return await cls.get(db, result.inserted_id)
+
+    @classmethod
+    def list(cls, db, filters):
+        query = filters.filter(cls._get_collection(db))
+        query = filters.sort(query)
+        return query
+
+    @classmethod
+    async def get(cls, db, model_id):
+        return cls.model_validate(await cls._get_collection(db).find_one({"_id": model_id}))
+
+    @classmethod
+    async def update(cls, db, model, update_schema):
+        update_query = {
+            "$set": {field: value for field, value in update_schema.model_dump(mode="json").items()}
+        }
+
+        await cls._get_collection(db).update_one({"_id": model.id}, update_query)
+        return await cls.get(db, model.id)
+
+    @classmethod
+    async def delete(cls, db, model):
+        await cls._get_collection(db).delete_one({"_id": model.id})
+
+
 
 def text_area(*args, **kwargs):
     kwargs['widget'] = {
diff --git a/back/app/core/routes.py b/back/app/core/routes.py
index 036f5a60..3904726e 100644
--- a/back/app/core/routes.py
+++ b/back/app/core/routes.py
@@ -3,10 +3,12 @@ from beanie.odm.operators.find.comparison import In
 from beanie.operators import And, RegEx, Eq
 
 from fastapi import APIRouter, HTTPException, Depends
-from fastapi_pagination import Page, Params, add_pagination
-from fastapi_pagination.ext.beanie import paginate
+from fastapi_filter import FilterDepends
+from fastapi_pagination import Page, add_pagination
+from fastapi_pagination.ext.motor import paginate
 
-from ..user.manager import get_current_user, get_current_superuser, get_current_user_and_firm
+from ..db import get_db_client
+from ..user.manager import get_current_user
 
 
 def parse_sort(sort_by):
@@ -15,8 +17,8 @@ def parse_sort(sort_by):
 
     fields = []
     for field in sort_by.split(','):
-        dir, col = field.split('(')
-        fields.append((col[:-1], 1 if dir == 'asc' else -1))
+        direction, column = field.split('(')
+        fields.append((column[:-1], 1 if direction == 'asc' else -1))
 
     return fields
 
@@ -33,6 +35,7 @@ def parse_query(query: str, model):
     for criterion in query.split(' AND '):
         [column, operator, value] = criterion.split(' ', 2)
         column = column.lower()
+        operand = None
         if column == 'fulltext':
             if not model.Settings.fulltext_search:
                 continue
@@ -50,68 +53,67 @@ def parse_query(query: str, model):
         elif operator == 'in':
             operand = In(column, value.split(','))
 
-        and_array.append(operand)
+        if operand:
+            and_array.append(operand)
 
     if and_array:
         return And(*and_array) if len(and_array) > 1 else and_array[0]
     else:
         return {}
 
+#user=Depends(get_current_user)
+def get_tenant_db_cursor(instance: str="westside", firm: str="cht", db_client=Depends(get_db_client), user=None):
+    return db_client[f"tenant_{instance}_{firm}"]
 
-def get_crud_router(model, model_create, model_read, model_update):
-
+def get_crud_router(model, model_create, model_read, model_update, model_filter):
+    model_name = model.__name__
     router = APIRouter()
 
-    @router.post("/", response_description="{} added to the database".format(model.__name__))
-    async def create(instance: str, firm: str, item: model_create, user=Depends(get_current_user)) -> dict:
-        await item.validate_foreign_key()
-        o = await model(**item.dict()).create()
-        return {"message": "{} added successfully".format(model.__name__), "id": o.id}
+    @router.post("/", response_description=f"{model_name} added to the database")
+    async def create(schema: model_create, db=Depends(get_tenant_db_cursor)) -> model_read:
+        await schema.validate_foreign_key(db)
+        record = await model.create(db, schema)
+        return model_read.from_model(record)
 
-    @router.get("/{id}", response_description="{} record retrieved".format(model.__name__))
-    async def read_id(instance: str, firm: str, id: PydanticObjectId, user=Depends(get_current_user)) -> model_read:
-        item = await model.get(id)
-        return model_read(**item.dict())
-
-    @router.get("/", response_model=Page[model_read], response_description="{} records retrieved".format(model.__name__))
-    async def read_list(instance: str, firm: str, size: int = 50, page: int = 1, sort_by: str = None, query: str = None,
-                        user=Depends(get_current_user_and_firm)) -> Page[model_read]:
-        sort = parse_sort(sort_by)
-        query = parse_query(query, model_read)
-
-        items = paginate(model.find(query), Params(**{'size': size, 'page': page}))
-        return await items
-
-    @router.put("/{id}", response_description="{} record updated".format(model.__name__))
-    async def update(instance: str, firm: str, id: PydanticObjectId, req: model_update, user=Depends(get_current_user)) -> model_read:
-        req = {k: v for k, v in req.dict().items() if v is not None}
-        update_query = {"$set": {
-            field: value for field, value in req.items()
-        }}
-
-        item = await model.get(id)
-        if not item:
+    @router.get("/{record_id}", response_description=f"{model_name} record retrieved")
+    async def read_one(record_id: PydanticObjectId, db=Depends(get_tenant_db_cursor)) -> model_read:
+        record = await model.get(db, record_id)
+        if not record:
             raise HTTPException(
                 status_code=404,
-                detail="{} record not found!".format(model.__name__)
+                detail=f"{model_name} record not found!"
             )
 
-        await item.update(update_query)
-        return model_read(**item.dict())
+        return model_read.from_model(record)
 
-    @router.delete("/{id}", response_description="{} record deleted from the database".format(model.__name__))
-    async def delete(instance: str, firm: str, id: PydanticObjectId, user=Depends(get_current_superuser)) -> dict:
-        item = await model.get(id)
+    @router.get("/", response_model=Page[model_read], response_description=f"{model_name} records retrieved")
+    async def read_list(filters: model_filter=FilterDepends(model_filter), db=Depends(get_tenant_db_cursor)) -> Page[model_read]:
+        return await paginate(model.list(db, filters))
 
-        if not item:
+    @router.put("/{record_id}", response_description=f"{model_name} record updated")
+    async def update(record_id: PydanticObjectId, schema: model_update, db=Depends(get_tenant_db_cursor)) -> model_read:
+        record = await model.get(db, record_id)
+        if not record:
             raise HTTPException(
                 status_code=404,
-                detail="{} record not found!".format(model.__name__)
+                detail=f"{model_name} record not found!"
             )
 
-        await item.delete()
+        record = await model.update(db, record, schema)
+        return model_read.from_model(record)
+
+    @router.delete("/{record_id}", response_description=f"{model_name} record deleted from the database")
+    async def delete(record_id: PydanticObjectId, db=Depends(get_tenant_db_cursor)) -> dict:
+        record = await model.get(db, record_id)
+        if not record:
+            raise HTTPException(
+                status_code=404,
+                detail=f"{model_name} record not found!"
+            )
+
+        await model.delete(db, record)
         return {
-            "message": "{} deleted successfully".format(model.__name__)
+            "message": f"{model_name} deleted successfully"
         }
 
     add_pagination(router)
diff --git a/back/app/core/schemas.py b/back/app/core/schemas.py
index b17255c6..a521124c 100644
--- a/back/app/core/schemas.py
+++ b/back/app/core/schemas.py
@@ -1,12 +1,16 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 
 class Reader(BaseModel):
-    pass
-#    class Config:
-#        fields = {'id': '_id'}
+    id: str = Field()
+
+    @classmethod
+    def from_model(cls, model):
+        schema = cls.model_validate(model.model_dump())
+        schema.id = model.id
+        return schema
 
 
 class Writer(BaseModel):
-    async def validate_foreign_key(self):
+    async def validate_foreign_key(self, db):
         pass
diff --git a/back/app/db.py b/back/app/db.py
index 376f5247..5a3c9d8e 100644
--- a/back/app/db.py
+++ b/back/app/db.py
@@ -3,20 +3,22 @@ import motor.motor_asyncio
 from beanie import init_beanie
 
 from .user import User, AccessToken
-from .entity.models import Entity
-from .template.models import ContractTemplate, ProvisionTemplate
-from .contract.models import ContractDraft, Contract
 
 DB_PASSWORD = "IBO3eber0mdw2R9pnInLdtFykQFY2f06"
 DATABASE_URL = f"mongodb://root:{DB_PASSWORD}@mongo:27017/"
 
+client = motor.motor_asyncio.AsyncIOMotorClient(
+    DATABASE_URL, uuidRepresentation="standard"
+)
 
 async def init_db():
-    client = motor.motor_asyncio.AsyncIOMotorClient(
-        DATABASE_URL, uuidRepresentation="standard"
-    )
-
-    await init_beanie(database=client.db_name,
-                      document_models=[User, AccessToken, Entity, ContractTemplate, ProvisionTemplate, ContractDraft,
-                                       Contract, ],
+    await init_beanie(database=client.core,
+                      document_models=[User, AccessToken, ], # Entity, ContractTemplate, ProvisionTemplate, ContractDraft, Contract,
                       allow_index_dropping=True)
+
+
+async def stop_db():
+    client.close()
+
+def get_db_client():
+    yield client
\ No newline at end of file
diff --git a/back/app/entity/models.py b/back/app/entity/models.py
index 6f26acf1..8c154543 100644
--- a/back/app/entity/models.py
+++ b/back/app/entity/models.py
@@ -1,10 +1,11 @@
 from datetime import date, datetime
 from typing import List, Literal, Optional
 
-from pydantic import Field, BaseModel, validator
+from pydantic import Field, BaseModel
 from beanie import Indexed
 
 from ..core.models import CrudDocument
+from ..core.filter import Filter
 
 
 class EntityType(BaseModel):
@@ -75,14 +76,12 @@ class Entity(CrudDocument):
     Fiche d'un client
     """
     entity_data: Individual | Corporation | Institution = Field(..., discriminator='type')
-    label: str = None
     address: str = Field(default="", title='Adresse')
 
-    @validator("label", always=True)
-    def generate_label(cls, v, values, **kwargs):
-        if 'entity_data' not in values:
-            return v
-        return values['entity_data'].label
+    def compute_label(self) -> str:
+        if not self.entity_data:
+            return ""
+        return self.entity_data.label
 
     class Settings(CrudDocument.Settings):
         fulltext_search = ['label']
@@ -96,6 +95,12 @@ class Entity(CrudDocument):
     class Config:
         title = 'Client'
 
-    @classmethod
-    def get_create_resource(cls):
-        print('coucou')
+
+class EntityFilters(Filter):
+    name__like: Optional[str] = None
+
+    order_by: Optional[list[str]] = None
+
+    class Constants(Filter.Constants):
+        model = Entity
+        search_model_fields = ["name"]
diff --git a/back/app/entity/routes.py b/back/app/entity/routes.py
index e2654159..8c3c3493 100644
--- a/back/app/entity/routes.py
+++ b/back/app/entity/routes.py
@@ -1,7 +1,5 @@
 from ..core.routes import get_crud_router
-from .models import Entity
+from .models import Entity, EntityFilters
 from .schemas import EntityCreate, EntityRead, EntityUpdate
 
-router = get_crud_router(Entity, EntityCreate, EntityRead, EntityUpdate)
-
-
+router = get_crud_router(Entity, EntityCreate, EntityRead, EntityUpdate, EntityFilters)
diff --git a/back/app/entity/schemas.py b/back/app/entity/schemas.py
index abe781f9..f3b9e674 100644
--- a/back/app/entity/schemas.py
+++ b/back/app/entity/schemas.py
@@ -1,14 +1,11 @@
-from typing import Optional
-from pydantic import BaseModel, Field
+from pydantic import Field
 
 from .models import Entity, Institution, Individual, Corporation
-from ..core.schemas import Writer
+from ..core.schemas import Writer, Reader
 
-
-class EntityRead(Entity):
+class EntityRead(Entity, Reader):
     pass
 
-
 class EntityCreate(Writer):
     entity_data: Individual | Corporation | Institution = Field(..., discriminator='type')
     address: str = Field(default="", title='Adresse')
@@ -16,6 +13,5 @@ class EntityCreate(Writer):
     class Config:
         title = "Création d'un client"
 
-
 class EntityUpdate(EntityCreate):
     pass
diff --git a/back/app/main.py b/back/app/main.py
index 9865bb48..34e9c1d0 100644
--- a/back/app/main.py
+++ b/back/app/main.py
@@ -1,19 +1,20 @@
+from contextlib import asynccontextmanager
 from fastapi import FastAPI
 
-from .contract import contract_router
-from .db import init_db
+#from .contract import contract_router
+from .db import init_db, stop_db
 from .user import user_router, get_auth_router
 from .entity import entity_router
-from .template import template_router
-# from .order import order_router
-
-app = FastAPI(root_path="/api/v1")
+#from .template import template_router
 
 
-@app.on_event("startup")
-async def on_startup():
+@asynccontextmanager
+async def lifespan(app: FastAPI):
     await init_db()
+    yield
+    await stop_db()
 
+app = FastAPI(root_path="/api/v1", lifespan=lifespan)
 
 app.include_router(get_auth_router(), prefix="/auth", tags=["auth"], )
 app.include_router(user_router, prefix="/users", tags=["users"], )
@@ -21,8 +22,8 @@ app.include_router(user_router, prefix="/users", tags=["users"], )
 multitenant_prefix = "/{instance}/{firm}"
 
 app.include_router(entity_router, prefix=f"{multitenant_prefix}/entity", tags=["entity"], )
-app.include_router(template_router, prefix=f"{multitenant_prefix}/template", tags=["template"], )
-app.include_router(contract_router, prefix=f"{multitenant_prefix}/contract", tags=["contract"], )
+#app.include_router(template_router, prefix=f"{multitenant_prefix}/template", tags=["template"], )
+#app.include_router(contract_router, prefix=f"{multitenant_prefix}/contract", tags=["contract"], )
 
 if __name__ == '__main__':
     import uvicorn
diff --git a/back/app/order/__init__.py b/back/app/order/__init__.py
deleted file mode 100644
index b72bb22c..00000000
--- a/back/app/order/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-from .routes import router as order_router
diff --git a/back/app/order/models.py b/back/app/order/models.py
deleted file mode 100644
index 4d36f791..00000000
--- a/back/app/order/models.py
+++ /dev/null
@@ -1,13 +0,0 @@
-from datetime import datetime
-
-from beanie import Document
-
-
-class Order(Document):
-    id: str
-    client: str
-    created_at: datetime
-    updated_at: datetime
-
-    class Settings:
-        name = "order_collection"
diff --git a/back/app/order/routes.py b/back/app/order/routes.py
deleted file mode 100644
index f455c9a8..00000000
--- a/back/app/order/routes.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from ..core.routes import get_crud_router
-from .models import Order
-from .schemas import OrderCreate, OrderRead, OrderUpdate
-
-router = get_crud_router(Order, OrderCreate, OrderRead, OrderUpdate)
diff --git a/back/app/order/schemas.py b/back/app/order/schemas.py
deleted file mode 100644
index be0324b5..00000000
--- a/back/app/order/schemas.py
+++ /dev/null
@@ -1,14 +0,0 @@
-import uuid
-from pydantic import BaseModel
-
-
-class OrderRead(BaseModel):
-    pass
-
-
-class OrderCreate(BaseModel):
-    login: str
-
-
-class OrderUpdate(BaseModel):
-    pass
diff --git a/back/requirements.txt b/back/requirements.txt
index 3289ac34..e4a9e6d1 100644
--- a/back/requirements.txt
+++ b/back/requirements.txt
@@ -1,7 +1,8 @@
 fastapi
 fastapi_users
 fastapi_users_db_beanie
-fastapi-pagination
+fastapi_pagination
+fastapi_filter
 uvicorn
 jinja2
 weasyprint