<div class="termy">

```console
$ ./traefik --configFile=traefik.toml

INFO[0000] Configuration loaded from file: /home/user/awesomeapi/traefik.toml
```

</div>

And now start your app, using the `--root-path` option:

<div class="termy">

```console
$ fastapi run main.py --root-path /api/v1

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

// OpenFileDirectIO captures time taken to call disk.OpenFileDirectIO
func OpenFileDirectIO(name string, flag int, perm os.FileMode) (f *os.File, err error) {
	defer updateOSMetrics(osMetricOpenFileDirectIO, name)(err)
	return disk.OpenFileDirectIO(name, flag, perm)
}

// Lstat captures time taken to call os.Lstat
func Lstat(name string) (info os.FileInfo, err error) {
	defer updateOSMetrics(osMetricLstat, name)(err)
	return os.Lstat(name)
}

```Python hl_lines="18  22"
{!../../docs_src/additional_responses/tutorial001.py!}
```

/// note

✔️ 🤯 👈 👆 ✔️ 📨 `JSONResponse` 🔗.

///

/// info

`model` 🔑 🚫 🍕 🗄.

**FastAPI** 🔜 ✊ Pydantic 🏷 ⚪️➡️ 📤, 🏗 `JSON Schema`, & 🚮 ⚫️ ☑ 🥉.

☑ 🥉:

* 🔑 `content`, 👈 ✔️ 💲 ➕1️⃣ 🎻 🎚 (`dict`) 👈 🔌:

Se você quiser receber atualizações parciais, é muito útil usar o parâmetro `exclude_unset` no método `.model_dump()` do modelo do Pydantic.

Como `item.model_dump(exclude_unset=True)`.

/// info | Informação

No Pydantic v1, o método que era chamado `.dict()` e foi depreciado (mas ainda suportado) no Pydantic v2. Agora, deve-se usar o método `.model_dump()`.

If you want to receive partial updates, it's very useful to use the parameter `exclude_unset` in Pydantic's model's `.model_dump()`.

Like `item.model_dump(exclude_unset=True)`.

/// info

In Pydantic v1 the method was called `.dict()`, it was deprecated (but still supported) in Pydantic v2, and renamed to `.model_dump()`.

def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/users/me": {
                "get": {
                    "responses": {
                        "200": {

    protected final String indexName;
    protected final String[] supportedFields;

    protected int scrollSize = 1;
    protected int maxRetryCount = 5;
    protected long limitOfDocumentSize = 50000;
    protected QueryBuilder queryBuilder = QueryBuilders.matchAllQuery();
    protected int limitPercentage = 100;
    protected long limitNumber = -1;
    protected List<SortBuilder<?>> sortList = new ArrayList<>();

                            <div class="card-body">
                                <div>
                                    <la:info id="msg" message="true">
                                        <div class="alert alert-info">${msg}</div>
                                    </la:info>
                                    <la:errors property="_global"/>
                                </div>
                                <p class="span8">

            <div class="row">
                <div class="col-md-12">
                    <div>
                        <la:info id="msg" message="true">
                            <div class="alert alert-info">${msg}</div>
                        </la:info>
                        <la:errors property="_global"/>
                    </div>
                    <div class="card card-outline card-success">

@needs_py310
def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/user/": {
                "post": {
                    "responses": {
                        "200": {