If you check the previous app, in the UI you can see that, up to now, it lets the client decide the `id` of the `Hero` to create. 😱

We shouldn't let that happen, they could overwrite an `id` we already have assigned in the DB. Deciding the `id` should be done by the **backend** or the **database**, **not by the client**.

    public void setId_Equal(String id) {
        setId_Term(id, null);
    }

    public void setId_Equal(String id, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setId_Term(id, opLambda);
    }

    public void setId_Term(String id) {
        setId_Term(id, null);
    }

    public void setId_Term(String id, ConditionOptionCall<TermQueryBuilder> opLambda) {

            private String transformerName = "test";
            private String id;

            @Override
            public String getId() {
                return id;
            }

            @Override
            public void setId(String id) {
                this.id = id;
            }

            @Override
            public String getTransformerName() {

                        </div>
                        <div class="card-body">
                            <%-- Message --%>
                            <div>
                                <la:info id="msg" message="true">
                                    <div class="alert alert-info">${msg}</div>
                                </la:info>
                                <la:errors/>
                            </div>

    //                                                                         ===========
    public DuplicateHostCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsDuplicateHostCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (DuplicateHostCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {

    //                                                                         ===========
    public RelatedQueryCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsRelatedQueryCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (RelatedQueryCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {

En este caso, es el `str`:

```Python
"{$callback_url}/invoices/{$request.body.id}"
```

Entonces, si el usuario de tu API (el desarrollador externo) envía un request a *tu API* a:

```
https://yourapi.com/invoices/?callback_url=https://www.external.org/events
```

con un JSON body de:

```JSON
{
    "id": "2expen51ve",
    "customer": "Mr. Richie Rich",
    "total": "9999"
}
```

def main(user_id: str):
    return user_id

# Модель Pydantic
class User(BaseModel):
    id: int
    name: str
    joined: date
```

Приклад використання цієї моделі:

```Python
my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```

    @Override
    protected String getDictType() {
        return DICT_TYPE;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("output", "output");
        return requestBody;
    }

    @Override

    @Override
    protected String getDictType() {
        return DICT_TYPE;
    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {