test_datetime_custom_encoder.py — fastapi Source File

Architecture documentation for test_datetime_custom_encoder.py, a python file in the fastapi codebase. 4 imports, 0 dependents.

File python FastAPI Responses 4 imports 1 functions 1 classes

Entity Profile

FastAPI→ Responses→ test_datetime_custom_encoder.py — fastapi Source File

Dependency Diagram

graph LR
  ba3bdf28_df52_2d09_627b_a8d890f2909e["test_datetime_custom_encoder.py"]
  e973e384_8276_b242_eb98_1c0b79a84e68["datetime"]
  ba3bdf28_df52_2d09_627b_a8d890f2909e --> e973e384_8276_b242_eb98_1c0b79a84e68
  534f6e44_61b8_3c38_8b89_6934a6df9802["__init__.py"]
  ba3bdf28_df52_2d09_627b_a8d890f2909e --> 534f6e44_61b8_3c38_8b89_6934a6df9802
  a7c04dee_ee23_5891_b185_47ff6bed036d["testclient.py"]
  ba3bdf28_df52_2d09_627b_a8d890f2909e --> a7c04dee_ee23_5891_b185_47ff6bed036d
  6913fbd4_39df_d14b_44bb_522e99b65b90["pydantic"]
  ba3bdf28_df52_2d09_627b_a8d890f2909e --> 6913fbd4_39df_d14b_44bb_522e99b65b90
  style ba3bdf28_df52_2d09_627b_a8d890f2909e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

from datetime import datetime, timezone

from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel


def test_pydanticv2():
    from pydantic import field_serializer

    class ModelWithDatetimeField(BaseModel):
        dt_field: datetime

        @field_serializer("dt_field")
        def serialize_datetime(self, dt_field: datetime):
            return dt_field.replace(microsecond=0, tzinfo=timezone.utc).isoformat()

    app = FastAPI()
    model = ModelWithDatetimeField(dt_field=datetime(2019, 1, 1, 8))

    @app.get("/model", response_model=ModelWithDatetimeField)
    def get_model():
        return model

    client = TestClient(app)
    with client:
        response = client.get("/model")
    assert response.json() == {"dt_field": "2019-01-01T08:00:00+00:00"}