authors:...

# Features { #features }

## FastAPI features { #fastapi-features }

**FastAPI** gives you the following:

### Based on open standards { #based-on-open-standards }

* [**OpenAPI**](https://github.com/OAI/OpenAPI-Specification) for API creation, including declarations of <dfn title="also known as: endpoints, routes">path</dfn> <dfn title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</dfn>, parameters, request bodies, security, etc.

				return nil, e
			}
			buf = bytes.NewBuffer(b)
		}

		return buf.Bytes(), nil
	}

	fmt.Println("{")

	hasWritten := false
	var r io.Reader
	var sz int64
	f, e := os.Open(downloadPath)
	if e != nil {
		return e
	}
	if st, e := f.Stat(); e == nil {
		sz = st.Size()
	}
	defer f.Close()
	r = f

	zr, e := zip.NewReader(r.(io.ReaderAt), sz)
	if e != nil {

	return nil
}

func (target *MySQLTarget) init() error {
	return target.initOnce.Do(target.initMySQL)
}

func (target *MySQLTarget) initMySQL() error {
	args := target.args

	db, err := sql.Open("mysql", args.DSN)
	if err != nil {
		target.loggerOnce(context.Background(), err, target.ID().String())
		return err
	}
	target.db = db

	if args.MaxOpenConnections > 0 {

Go release cycle considerations
===============================

Applying changes to packages that are vendored follows the considerations
written down at go.dev/s/release.

When the Go tree is open for development, a specific change may be pulled in
at any time that it is needed. During the release freeze, the bar for changes
in vendored packages is the same as it is for changes in non-vendored packages.

 * Caffeine}</a> class. Caffeine offers better performance, more features (including asynchronous
 * loading), and fewer <a
 * href="https://github.com/google/guava/issues?q=is%3Aopen+is%3Aissue+label%3Apackage%3Dcache+label%3Atype%3Ddefect">bugs</a>.
 *
 * <p>Caffeine defines its own interfaces (<a

            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcLsarClose.class));

        // Act
        handle.close();

        // Assert
        // Verify sendrecv was called once for open and once for close
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarOpenPolicy2.class));
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarClose.class));
    }

    @Test

So, it was a complete additional system.

It is not very popular or used nowadays.

## OpenAPI { #openapi }

OpenAPI (previously known as Swagger) is the open specification for building APIs (now part of the Linux Foundation).

**FastAPI** is based on **OpenAPI**.

That's what makes it possible to have multiple automatic interactive documentation interfaces, code generation, etc.

	Context                  context.Context
	Logger                   logger.Interface
	NowFunc                  func() time.Time
	CreateBatchSize          int
}

// Open initialize db session based on dialector
func Open(dialector Dialector, opts ...Option) (db *DB, err error) {
	config := &Config{}

	sort.Slice(opts, func(i, j int) bool {
		_, isConfig := opts[i].(*Config)
		_, isConfig2 := opts[j].(*Config)

FastAPI Cloud, *FastAPI and friends* open source projelerinin ana sponsoru ve finansman sağlayıcısıdır. ✨

#### Diğer cloud sağlayıcılarına deploy { #deploy-to-other-cloud-providers }

FastAPI open source'tur ve standartlara dayanır. FastAPI uygulamalarını seçtiğiniz herhangi bir cloud sağlayıcısına deploy edebilirsiniz.