}()

	// Start parsers
	for range runtime.GOMAXPROCS(0) {
		go func() {
			for in := range r.input {
				if len(in.input) == 0 {
					in.dst <- nil
					continue
				}
				dst := r.csvDstPool.Get()
				if len(dst) < 1000 {
					dst = make([][]string, 0, 1000)
				}

				cr := newReader(bytes.NewBuffer(in.input))
				all := dst[:0]
				err := func() error {

/// tip | Tipp

Sie könnten jede andere SQL- oder NoSQL-Datenbankbibliothek verwenden, die Sie möchten (in einigen Fällen als <abbr title="Object Relational Mapper – Objektrelationaler Mapper: Ein Fachbegriff für eine Bibliothek, in der einige Klassen SQL-Tabellen und Instanzen Zeilen in diesen Tabellen darstellen">„ORMs“</abbr> bezeichnet), FastAPI zwingt Sie nicht, irgendetwas zu verwenden. 😎

///

But documentation is still missing. Then APISpec was created.

It is a plug-in for many frameworks (and there's a plug-in for Starlette too).

The way it works is that you write the definition of the schema using YAML format inside the docstring of each function handling a route.

And it generates OpenAPI schemas.

That's how it works in Flask, Starlette, Responder, etc.

## Webhooks steps { #webhooks-steps }

The process normally is that **you define** in your code what is the message that you will send, the **body of the request**.

You also define in some way at which **moments** your app will send those requests or events.

And **your users** define in some way (for example in a web dashboard somewhere) the **URL** where your app should send those requests.

    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
    # via
    #   -r ci/official/requirements_updater/requirements.in

    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
    # via
    #   -r ci/official/requirements_updater/requirements.in

    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
    # via
    #   -r ci/official/requirements_updater/requirements.in

<img src="/img/tutorial/generate-clients/image01.png">

Sie können diese Schemas sehen, da sie mit den Modellen in der App deklariert wurden.

Diese Informationen sind im **OpenAPI-Schema** der Anwendung verfügbar und werden in der API-Dokumentation angezeigt.

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN