/// tip

**GraphQL** solves some very specific use cases.

It has **advantages** and **disadvantages** when compared to common **web APIs**.

Make sure you evaluate if the **benefits** for your use case compensate the **drawbacks**. 🤓

///

## GraphQL Libraries

Here are some of the **GraphQL** libraries that have **ASGI** support. You could use them with **FastAPI**:

	for {
		var (
			ok    bool
			entry any
		)

		if count < h.batchSize {
			tickered := false
			select {
			case _ = <-ticker.C:
				tickered = true
			case entry, _ = <-globalBuffer:
			case entry, ok = <-h.logCh:
				if !ok {
					return
				}
			case <-ctx.Done():
				return
			}

			if !tickered {
				h.totalMessages.Add(1)
				if !isDirQueue {

 * the License.
 */

package com.google.common.util.concurrent;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.util.concurrent.AggregateFuture.ReleaseResourcesReason.ALL_INPUT_FUTURES_PROCESSED;

			logger = logger.WithLabels(k, v)
		}
		// There is no fatal log from CNI plugin
		switch m.Level {
		case "debug":
			logger.LogWithTime(istiolog.DebugLevel, m.Msg, m.Time)
		case "info":
			logger.LogWithTime(istiolog.InfoLevel, m.Msg, m.Time)
		case "warn":
			logger.LogWithTime(istiolog.WarnLevel, m.Msg, m.Time)
		case "error":
			logger.LogWithTime(istiolog.ErrorLevel, m.Msg, m.Time)
		}
	}
}

## Use Case

Let's start with an example **use case** and then see how to solve it with this.

Let's imagine that you have some **machine learning models** that you want to use to handle requests. 🤖

	// fmt.Printf("actual: %v offset: %v (%v) whence: %v\n", rsc.size, offset, rsc.offset, whence)
	switch whence {
	case io.SeekStart:
		rsc.offset = offset
	case io.SeekCurrent:
		rsc.offset += offset
	case io.SeekEnd:
		rsc.offset = rsc.size + offset
	}
	if rsc.offset < 0 {
		return rsc.offset, errors.New("seek to invalid negative offset")
	}

       *   called only once, just as it has its Executor.execute override called only once.)
       *
       * - if we return immediately from `execute` (in which case we never get here)
       *
       * - in the "reentrant submit" case of `execute` (in which case we must have started running a
       *   user task -- which means that we already got past this code (or else we exited early
       *   above))
       */

	var aead cipher.AEAD
	switch keyType {
	case kms.AES256:
		mac := hmac.New(sha256.New, s.key)
		mac.Write(iv)
		sealingKey := mac.Sum(nil)

		block, err := aes.NewCipher(sealingKey)
		if err != nil {
			return nil, err
		}
		aead, err = cipher.NewGCM(block)
		if err != nil {
			return nil, err
		}
	case kms.ChaCha20:
		sealingKey, err := chacha20.HChaCha20(s.key, iv)

    @Override
    public void setRootLoggerLevel(Level level) {
        String value;
        switch (level) {
            case DEBUG:
                value = "debug";
                break;

            case INFO:
                value = "info";
                break;

            default:
                value = "error";
                break;
        }

func convPartErrToInt(err error) int {
	err = unwrapAll(err)
	switch err {
	case nil:
		return checkPartSuccess
	case errFileNotFound, errFileVersionNotFound:
		return checkPartFileNotFound
	case errFileCorrupt:
		return checkPartFileCorrupt
	case errVolumeNotFound:
		return checkPartVolumeNotFound
	case errDiskNotFound:
		return checkPartDiskNotFound
	default:
		return checkPartUnknown
	}
}