# Deployments Concepts

When deploying a **FastAPI** application, or actually, any type of web API, there are several concepts that you probably care about, and using them you can find the **most appropriate** way to **deploy your application**.

Some of the important concepts are:

* Security - HTTPS
* Running on startup
* Restarts
* Replication (the number of processes running)
* Memory
* Previous steps before starting

	innerHandler := h.handle(pathComponents, isListingRequest, buckets)

	// Add tracing to the prom. handler
	tracedHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt)
		if ok {
			tc.FuncName = "handler.MetricsV3"
			tc.ResponseRecorder.LogErrBody = true
		}

		innerHandler.ServeHTTP(w, r)
	})

	// Add authentication

		{testBuckets[5], "201910/foo/bar/xl.meta/1.txt", "content", nil},
		{testBuckets[6], "aaa", "content", nil},
		{testBuckets[6], "bbb_aaa", "content", nil},
		{testBuckets[6], "bbb_aaa", "content", nil},
		{testBuckets[6], "ccc", "content", nil},
	}
	for _, object := range testObjects {
		md5Bytes := md5.Sum([]byte(object.content))

// the console logging pub sub system
func NewConsoleLogger(ctx context.Context, w io.Writer) *HTTPConsoleLoggerSys {
	return &HTTPConsoleLoggerSys{
		pubsub:  pubsub.New[log.Info, madmin.LogMask](8),
		console: console.New(w),
		logBuf:  ring.New(defaultLogBufferCount),
	}
}

// IsOnline always true in case of console logger
func (sys *HTTPConsoleLoggerSys) IsOnline(_ context.Context) bool {
	return true
}

	globalIAMSys.Init(ctx, obj, globalEtcdClient, 2*time.Second)
	return obj, fsDirs[0], nil
}

func prepareErasureSets32(ctx context.Context) (ObjectLayer, []string, error) {
	return prepareErasure(ctx, 32)
}

func prepareErasure(ctx context.Context, nDisks int) (ObjectLayer, []string, error) {
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		return nil, nil, err
	}

	ep, err := unescapeGeneric(p, escapeFn)
	if err != nil {
		return p
	}
	return ep
}

func updateReqContext(ctx context.Context, objects ...ObjectV) context.Context {
	req := logger.GetReqInfo(ctx)
	if req != nil {
		req.Lock()
		defer req.Unlock()
		req.Objects = make([]logger.ObjectVersion, 0, len(objects))
		for _, ov := range objects {

					case <-unlock:
					case <-r.Context().Done():
						// if client canceled we don't need to wait here forever.
						return
					}
				}
			}
		}

		pool, deadline := globalAPIConfig.getRequestsPool()
		if pool == nil {
			f.ServeHTTP(w, r)
			return
		}

		globalHTTPStats.addRequestsInQueue(1)

		if tc, ok := r.Context().Value(mcontext.ContextTraceKey).(*mcontext.TraceCtxt); ok {

	Expire    *BatchJobExpire      `yaml:"expire" json:"expire"`
	ctx       context.Context      `msg:"-"`
}

func notifyEndpoint(ctx context.Context, ri *batchJobInfo, endpoint, token string) error {
	if endpoint == "" {
		return nil
	}

	buf, err := json.Marshal(ri)
	if err != nil {
		return err
	}

	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
	defer cancel()

type MetricsLoaderFn func(context.Context, MetricValues, *metricsCache) error

// JoinLoaders - joins multiple loaders into a single loader. The returned
// loader will call each of the given loaders in order. If any of the loaders
// return an error, the returned loader will return that error.
func JoinLoaders(loaders ...MetricsLoaderFn) MetricsLoaderFn {
	return func(ctx context.Context, m MetricValues, c *metricsCache) error {

// TransitionObject - transition object content to target tier.
func (s *erasureSets) TransitionObject(ctx context.Context, bucket, object string, opts ObjectOptions) error {
	return s.getHashedSet(object).TransitionObject(ctx, bucket, object, opts)
}

// RestoreTransitionedObject - restore transitioned object content locally on this cluster.