author_link: https://dev.to/cuongld2
    link: https://dev.to/cuongld2/build-simple-api-service-with-python-fastapi-part-1-581o
    title: Build simple API service with Python FastAPI — Part 1
  - author: Paurakh Sharma Humagain
    author_link: https://twitter.com/PaurakhSharma
    link: https://dev.to/paurakhsharma/microservice-in-python-using-fastapi-24cc
    title: Microservice in Python using FastAPI
  - author: Guillermo Cruz

### Outras funções de utilidade

Qualquer outra função de utilidade que você chame diretamente pode ser criada com `def` normal ou `async def` e o FastAPI não irá afetar o modo como você a chama.

Isso está em contraste às funções que o FastAPI chama para você: *funções de operação de rota* e dependências.

#### "Schema" de datos

El concepto "schema" también se puede referir a la forma de algunos datos, como un contenido en formato JSON.

En ese caso haría referencia a los atributos del JSON, los tipos de datos que tiene, etc.

#### OpenAPI y JSON Schema

func BenchmarkMutexNoSpin(b *testing.B) {
	b.ResetTimer()
	b.ReportAllocs()

	// This benchmark models a situation where spinning in the mutex should be
	// non-profitable and allows to confirm that spinning does not do harm.
	// To achieve this we create excess of goroutines most of which do local work.
	// These goroutines yield during local work, so that switching from
	// a blocked goroutine to other goroutines is profitable.

	}
}

func (in *Installer) installAll(ctx context.Context) (sets.String, error) {
	// Install binaries
	// Currently we _always_ do this, since the binaries do not live in a shared location
	// and we harm no one by doing so.
	copiedFiles, err := copyBinaries(in.cfg.CNIBinSourceDir, in.cfg.CNIBinTargetDirs)
	if err != nil {
		cniInstalls.With(resultLabel.Value(resultCopyBinariesFailure)).Increment()

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          a: String,
          b: String,
        ): Int {
          var i = 4
          val limit = minOf(a.length, b.length)
          while (i < limit) {
            val charA = a[i]
            val charB = b[i]
            if (charA != charB) return if (charA < charB) -1 else 1
            i++
          }
          val lengthA = a.length
          val lengthB = b.length

      // stream is closed (we won't use any further bytes) and the output stream is either finished
      // or closed (so RSTing both streams doesn't cause harm).
      ******@****.***(ErrorCode.CANCEL, null)
    } else if (!open) {
      connection.removeStream(id)
    }
  }

   *       Given all these possibilities, it is frequently possible for listeners to execute in UI
   *       threads, RPC network threads, or other latency-sensitive threads. In those cases, slow
   *       listeners can harm responsiveness, slow the system as a whole, or worse. (See also the
   *       note about locking below.)
   *   <li>If many tasks will be triggered by the same event, one heavyweight task may delay other