try {
                settings = settingsReader.read(settingsSource.getInputStream(), options);
            } catch (SettingsParseException e) {
                options = Collections.singletonMap(SettingsReader.IS_STRICT, Boolean.FALSE);

                settings = settingsReader.read(settingsSource.getInputStream(), options);

                problems.add(

      )

    val part = parts.nextPart()!!
    assertThat(part.body.readUtf8()).isEqualTo("abcd\r\n--simple boundar\r\n\r\nefgh")

    assertThat(parts.nextPart()).isNull()
  }

  @Test fun `do not need to read entire part`() {
    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |efgh
      |ijkl
      |--simple boundary
      |
      |mnop
      |--simple boundary--

/// tip | Tipp

Die nächsten Abschnitte sind **nicht unbedingt „fortgeschritten“**.

Und es ist möglich, dass für Ihren Anwendungsfall die Lösung in einem davon liegt.

///

## Das Tutorial zuerst lesen { #read-the-tutorial-first }

Die nächsten Abschnitte setzen voraus, dass Sie das Haupt-[Tutorial – Benutzerhandbuch: Sicherheit](../../tutorial/security/index.md) bereits gelesen haben.

If something seems interesting and useful to your project, go ahead and check it, but otherwise, you might probably just skip them.

/// tip

If you want to **learn FastAPI** in a structured way (recommended), go and read the [Tutorial - User Guide](../tutorial/index.md) chapter by chapter instead.

/// tip | Consejo

Las siguientes secciones no son necesariamente "avanzadas".

Y es posible que para tu caso de uso, la solución esté en una de ellas.

///

## Lee primero el Tutorial { #read-the-tutorial-first }

Las siguientes secciones asumen que ya leíste el [Tutorial - Guía del Usuario: Seguridad](../../tutorial/security/index.md) principal.

            bufferIndex += dataCount;
        }

        /* Check to see if the entire transaction has been
         * read. If so call the read methods.
         */

        if (!parametersDone && parameterDisplacement + parameterCount == totalParameterCount) {
            parametersDone = true;
        }

# Advanced Middleware { #advanced-middleware }

In the main tutorial you read how to add [Custom Middleware](../tutorial/middleware.md) to your application.

And then you also read how to handle [CORS with the `CORSMiddleware`](../tutorial/cors.md).

In this section we'll see how to use other middlewares.

## Adding ASGI middlewares { #adding-asgi-middlewares }

				}
			}
			refDec := json.NewReader(io.NopCloser(bytes.NewBuffer(ref)), &json.ReaderArgs{ContentType: "json"})

			for {
				rec, err := dec.Read(nil)
				if err == io.EOF {
					break
				}
				if err != nil {
					t.Error(err)
				}
				want, err := refDec.Read(nil)
				if err != nil {
					t.Error(err)
				}
				var gotB, wantB bytes.Buffer
				opts := sql.WriteCSVOpts{
					FieldDelimiter: ',',

    assertEquals(-1, ArbitraryInstances.get(InputStream.class).read());
    assertEquals(-1, ArbitraryInstances.get(ByteArrayInputStream.class).read());
    assertEquals(-1, ArbitraryInstances.get(Readable.class).read(CharBuffer.allocate(1)));
    assertEquals(-1, ArbitraryInstances.get(Reader.class).read());
    assertEquals(-1, ArbitraryInstances.get(StringReader.class).read());
    assertEquals(0, ArbitraryInstances.get(Buffer.class).capacity());

///

## Advanced User Guide { #advanced-user-guide }

There is also an **Advanced User Guide** that you can read later after this **Tutorial - User guide**.

The **Advanced User Guide** builds on this one, uses the same concepts, and teaches you some extra features.

But you should first read the **Tutorial - User Guide** (what you are reading right now).