# Generating SDKs { #generating-sdks }

Because **FastAPI** is based on the **OpenAPI** specification, its APIs can be described in a standard format that many tools understand.

This makes it easy to generate up-to-date **documentation**, client libraries (<abbr title="Software Development Kits">**SDKs**</abbr>) in multiple languages, and **testing** or **automation workflows** that stay in sync with your code.

# 🏗 👩‍💻

**FastAPI** ⚓️ 🔛 🗄 🔧, 👆 🤚 🏧 🔗 ⏮️ 📚 🧰, 🔌 🏧 🛠️ 🩺 (🚚 🦁 🎚).

1️⃣ 🎯 📈 👈 🚫 🎯 ⭐ 👈 👆 💪 **🏗 👩‍💻** (🕣 🤙 <abbr title="Software Development Kits">**📱**</abbr> ) 👆 🛠️, 📚 🎏 **🛠️ 🇪🇸**.

## 🗄 👩‍💻 🚂

📤 📚 🧰 🏗 👩‍💻 ⚪️➡️ **🗄**.

⚠ 🧰 <a href="https://openapi-generator.tech/" class="external-link" target="_blank">🗄 🚂</a>.

Una ventaja particular que no es necesariamente obvia es que puedes **generar clientes** (a veces llamados <abbr title="Software Development Kits">**SDKs**</abbr> ) para tu API, para muchos **lenguajes de programación** diferentes.

## Generadores de Clientes OpenAPI

Hay muchas herramientas para generar clientes desde **OpenAPI**.

Ein besonderer Vorteil, der nicht unbedingt offensichtlich ist, besteht darin, dass Sie für Ihre API **Clients generieren** können (manchmal auch <abbr title="Software Development Kits">**SDKs**</abbr> genannt), für viele verschiedene **Programmiersprachen**.

## OpenAPI-Client-Generatoren

Es gibt viele Tools zum Generieren von Clients aus **OpenAPI**.

Uma vantagem particular que nem sempre é óbvia é que você pode **gerar clientes** (às vezes chamados de <abbr title="Software Development Kits">**SDKs**</abbr>) para a sua API, para muitas **linguagens de programação** diferentes.

## Geradores de Clientes OpenAPI

Existem muitas ferramentas para gerar clientes a partir do **OpenAPI**.

    /**
     * Validate that the constructor masks the supplied value to its
     * lowest 8 bits (NdrShort incorrectly masks to 8 bits even though it's a short).
     */
    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 255, -1, 256, 65535 })
    void constructorMasksValue(int input) {
        NdrShort ns = new NdrShort(input);
        // NdrShort masks to 0xFF (8 bits) in its constructor
        int expected = input & 0xFF;

 *
 * ```
 *  0..63 : Length of the UTF-16 sequence that this range maps to. The offset is b2b3.
 * 64..79 : Offset by a fixed negative offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 * 80..95 : Offset by a fixed positive offset. The bottom 4 bits of b1 are the top 4 bits of the offset.
 *    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].

  /** Checks that the passed argument is positive, and ceils it to a multiple of 32. */
  static int checkPositiveAndMakeMultipleOf32(int bits) {
    checkArgument(bits > 0, "Number of bits must be positive");
    return (bits + 31) & ~31;
  }

  /**
   * Returns a hash function which computes its hash code by concatenating the hash codes of the
   * underlying hash functions together. This can be useful if you need to generate hash codes of a

    /**
     * Sets {@code numHashFunctions} bits of the given bit array, by hashing a user element.
     *
     * <p>Returns whether any bits changed as a result of this operation.
     */
    <T extends @Nullable Object> boolean put(
        @ParametricNullness T object,
        Funnel<? super T> funnel,
        int numHashFunctions,
        LockFreeBitArray bits);

    /**

   * metadata} is the size that the arrays should be allocated with. Once the arrays have been
   * allocated, the value of {@code metadata} combines the number of bits in the "short hash", in
   * its bottom {@value CompactHashing#HASH_TABLE_BITS_MAX_BITS} bits, with a modification count in
   * the remaining bits that is used to detect concurrent modification during iteration.
   */
  private transient int metadata;