* Seriously impressive performance. It is <a href="https://github.com/encode/starlette#performance" class="external-link" target="_blank">one of the fastest Python frameworks available, on par with **NodeJS** and **Go**</a>.
* **WebSocket** support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
* **Fast to code**: Increase the speed to develop features by about 200% to 300%. *
* **Fewer bugs**: Reduce about 40% of human (developer) induced errors. *

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
* **Fast to code**: Increase the speed to develop features by about 200% to 300%. *
* **Fewer bugs**: Reduce about 40% of human (developer) induced errors. *

///

/// check | Inspired **FastAPI** to

Find a way to have a crazy performance.

That's why **FastAPI** is based on Starlette, as it is the fastest framework available (tested by third-party benchmarks).

///

### <a href="https://falconframework.org/" class="external-link" target="_blank">Falcon</a> { #falcon }

   * previously configured separator between each.
   */
  public String join(Iterable<?> parts) {
    /*
     * If we can quickly determine how many elements there are likely to be, then we can use the
     * fastest possible implementation, which delegates to the array overload of String.join.
     *
     * In theory, we can quickly determine the size of any Collection. However, thanks to

1) For relative URLs, only translate link text. Do not translate the URL or its parts

Example:

    Source (English):

        «««
        [One of the fastest Python frameworks available](#performance)
        »»»

    Result (German):

        «««
        [Eines der schnellsten verfügbaren Python-Frameworks](#performance)
        »»»

  `Well!  I've often seen a cat without a grin,' thought Alice;
`but a grin without a cat!  It's the most curious thing I ever
saw in my life!'

  She had not gone much farther before she came in sight of the
house of the March Hare:  she thought it must be the right house,
because the chimneys were shaped like ears and the roof was
thatched with fur.  It was so large a house, that she did not

        <match value="Message-ID:" type="string" offset="0:8192"/>
      </match>
      <!-- match X- DKIM- ARC- at start of file and then require at least one
           of the usual: from, received, date...but look farther into the file
           because of the X|DKIM|ARC headers-->
      <match value="(X|DKIM|ARC)-" type="regex" offset="0">
        <match value="\nDate:" type="stringignorecase" offset="0:8192"/>