As part of that, I needed to investigate, test and use many alternatives.

The history of **FastAPI** is in great part the history of its predecessors.

As said in the section [Alternatives](alternatives.md):

<blockquote markdown="1">

**FastAPI** wouldn't exist if not for the previous work of others.

There have been many tools created before that have helped inspire its creation.

name: Language Change Proposals
description: Changes to the language
labels: ["Proposal", "LanguageChange", "LanguageChangeReview"]
title: "proposal: spec: proposal title"


body:
  - type: markdown
    attributes:
      value: |
       ## Our process for evaluating language changes can be found [here](https://go.googlesource.com/proposal/+/refs/heads/master#language-changes)

  - type: dropdown
    id: author-go-experience
    attributes:

///

All the documentation is in Markdown format in the directory `./docs/en/`.

Many of the tutorials have blocks of code.

In most of the cases, these blocks of code are actual complete applications that can be run as is.

In fact, those blocks of code are not written inside the Markdown, they are Python files in the `./docs_src/` directory.

    # via -r ci/official/requirements_updater/requirements.in
markdown==3.8 \
    --hash=sha256:794a929b79c5af141ef5ab0f2f642d0f7b1872981250230e72682346f7cc90dc \
    --hash=sha256:7df81e63f0df5c4b24b7d156eb81e4690595239b7d70937d0409f1b0de319c6f
    # via tb-nightly
markdown-it-py==3.0.0 \
    --hash=sha256:355216845c60bd96232cd8d8c40e8f9765cc86f46880e43a8fd22dc1a1a8cab1 \

labels: [question]
body:
  - type: markdown
    attributes:
      value: |
        Thanks for your interest in FastAPI! 🚀

        Please follow these instructions, fill every question, and do every step. 🙏

        I'm asking this because answering questions and solving problems in GitHub is what consumes most of the time.

    # via -r ci/official/requirements_updater/requirements.in
markdown==3.8 \
    --hash=sha256:794a929b79c5af141ef5ab0f2f642d0f7b1872981250230e72682346f7cc90dc \
    --hash=sha256:7df81e63f0df5c4b24b7d156eb81e4690595239b7d70937d0409f1b0de319c6f
    # via tb-nightly
markdown-it-py==3.0.0 \
    --hash=sha256:355216845c60bd96232cd8d8c40e8f9765cc86f46880e43a8fd22dc1a1a8cab1 \

    # via -r ci/official/requirements_updater/requirements.in
markdown==3.8 \
    --hash=sha256:794a929b79c5af141ef5ab0f2f642d0f7b1872981250230e72682346f7cc90dc \
    --hash=sha256:7df81e63f0df5c4b24b7d156eb81e4690595239b7d70937d0409f1b0de319c6f
    # via tb-nightly
markdown-it-py==3.0.0 \
    --hash=sha256:355216845c60bd96232cd8d8c40e8f9765cc86f46880e43a8fd22dc1a1a8cab1 \

    # via -r ci/official/requirements_updater/requirements.in
markdown==3.8 \
    --hash=sha256:794a929b79c5af141ef5ab0f2f642d0f7b1872981250230e72682346f7cc90dc \
    --hash=sha256:7df81e63f0df5c4b24b7d156eb81e4690595239b7d70937d0409f1b0de319c6f
    # via tb-nightly
markdown-it-py==3.0.0 \
    --hash=sha256:355216845c60bd96232cd8d8c40e8f9765cc86f46880e43a8fd22dc1a1a8cab1 \

pkg fmt, func Appendf([]uint8, string, ...interface{}) []uint8 #47579
pkg fmt, func Appendln([]uint8, ...interface{}) []uint8 #47579
pkg go/doc, method (*Package) HTML(string) []uint8 #51082
pkg go/doc, method (*Package) Markdown(string) []uint8 #51082
pkg go/doc, method (*Package) Parser() *comment.Parser #51082
pkg go/doc, method (*Package) Printer() *comment.Printer #51082
pkg go/doc, method (*Package) Synopsis(string) string #51082

## 备选方案 { #alternatives }

有那么几年，我曾领导数个开发团队为诸多复杂需求创建各种 API，这些需求包括机器学习、分布系统、异步任务、NoSQL 数据库等领域。

作为工作的一部分，我需要调研很多备选方案、还要测试并且使用这些备选方案。

**FastAPI** 其实只是延续了这些前辈的历史。

正如[备选方案](alternatives.md)一章所述：

<blockquote markdown="1">
没有大家之前所做的工作，**FastAPI** 就不会存在。

以前创建的这些工具为它的出现提供了灵感。

在那几年中，我一直回避创建新的框架。首先，我尝试使用各种框架、插件、工具解决 **FastAPI** 现在的功能。