from fastapi.testclient import TestClient


def main(some_arg, q: Optional[str] = None):
    return {"some_arg": some_arg, "q": q}


endpoint = partial(main, "foo")

app = FastAPI()

app.get("/")(endpoint)


client = TestClient(app)


def test_partial():
    response = client.get("/?q=bar")
    data = response.json()

"RollingUpdate" }} rollingUpdate: maxSurge: {{ .Values.DeploymentUpdate.maxSurge }} maxUnavailable: {{ .Values.DeploymentUpdate.maxUnavailable }} {{- end}} replicas: 1 selector: matchLabels: app: {{ template "minio.name" . }} release: {{ .Release.Name }} template: metadata: name: {{ template "minio.fullname" . }} labels: app: {{ template "minio.name" . }} release: {{ .Release.Name }} {{- if .Values.podLabels }} {{ toYaml .Values.podLabels | indent 8 }} {{- end }} annotations: checksum/secrets: {{ include...

"RollingUpdate" }} rollingUpdate: maxSurge: {{ .Values.DeploymentUpdate.maxSurge }} maxUnavailable: {{ .Values.DeploymentUpdate.maxUnavailable }} {{- end}} replicas: 1 selector: matchLabels: app: {{ template "minio.name" . }} release: {{ .Release.Name }} template: metadata: name: {{ template "minio.fullname" . }} labels: app: {{ template "minio.name" . }} release: {{ .Release.Name }} {{- if .Values.podLabels }} {{ toYaml .Values.podLabels | indent 8 }} {{- end }} annotations: checksum/secrets: {{ include...

from fastapi.responses import JSONResponse
from pydantic import BaseModel


class Item(BaseModel):
    title: str
    timestamp: datetime
    description: Union[str, None] = None


app = FastAPI()


@app.put("/items/{id}")
def update_item(id: str, item: Item):
    json_compatible_item_data = jsonable_encoder(item)

from fastapi import FastAPI, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: int = Path(title="The ID of the item to get", ge=0, le=1000),
    q: str,
    size: float = Query(gt=0, lt=10.5),
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})
    if size:
        results.update({"size": size})

from fastapi import FastAPI, Query
from pydantic import BaseModel, Field

app = FastAPI()


class FilterParams(BaseModel):
    model_config = {"extra": "forbid"}

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")
async def read_items(filter_query: Annotated[FilterParams, Query()]):

import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.core.net.UuidUtil;
import org.codelibs.fess.app.web.base.login.ActionResponseCredential;
import org.codelibs.fess.app.web.base.login.FessLoginAssist.LoginCredentialResolver;
import org.codelibs.fess.app.web.base.login.SamlCredential;
import org.codelibs.fess.app.web.base.login.SamlCredential.SamlUser;
import org.codelibs.fess.crawler.Constants;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict.stopwords;

import org.codelibs.fess.app.web.CrudMode;
import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**

)
def test(path, cookies, expected_status, expected_response, mod: ModuleType):
    client = TestClient(mod.app, cookies=cookies)
    response = client.get(path)
    assert response.status_code == expected_status
    assert response.json() == expected_response


def test_openapi_schema(mod: ModuleType):
    client = TestClient(mod.app)
    response = client.get("/openapi.json")
    assert response.status_code == 200

## An app with callbacks { #an-app-with-callbacks }

Let's see all this with an example.

Imagine you develop an app that allows creating invoices.

These invoices will have an `id`, `title` (optional), `customer`, and `total`.