参考サイト
https://echo.labstack.com/guide
https://rightcode.co.jp/blog/information-technology/golang-introduction-rest-api
パッケージインストール
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go get -u github.com/labstack/echo/... |
コード
- localhost:1323で起動する
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<span class="k">package</span> <span class="n">main</span> <span class="k">import</span> <span class="p">(</span> <span class="s">"net/http"</span> <span class="s">"github.com/labstack/echo"</span> <span class="p">)</span> <span class="k">func</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span> <span class="n">e</span> <span class="o">:=</span> <span class="n">echo</span><span class="o">.</span><span class="n">New</span><span class="p">()</span> <span class="n">e</span><span class="o">.</span><span class="n">GET</span><span class="p">(</span><span class="s">"/"</span><span class="p">,</span> <span class="k">func</span><span class="p">(</span><span class="n">c</span> <span class="n">echo</span><span class="o">.</span><span class="n">Context</span><span class="p">)</span> <span class="kt">error</span> <span class="p">{</span> <span class="k">return</span> <span class="n">c</span><span class="o">.</span><span class="n">String</span><span class="p">(</span><span class="n">http</span><span class="o">.</span><span class="n">StatusOK</span><span class="p">,</span> <span class="s">"Hello, World!"</span><span class="p">)</span> <span class="p">})</span> <span class="n">e</span><span class="o">.</span><span class="n">Logger</span><span class="o">.</span><span class="n">Fatal</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">Start</span><span class="p">(</span><span class="s">":1323"</span><span class="p">))</span> <span class="p">}</span> |
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PS C:\Users\yuta\go\src\server> go run .\server.go ____ __ / __/___/ / ___ / _// __/ _ \/ _ \ /___/\__/_//_/\___/ v4.1.16 High performance, minimalist Go web framework https://echo.labstack.com ____________________________________O/_______ O\ ⇨ http server started on [::]:1323 |
ユーザー名を返す
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<span class="k">package</span> <span class="n">main</span> <span class="k">import</span> <span class="p">(</span> <span class="s">"net/http"</span> <span class="s">"github.com/labstack/echo"</span> <span class="p">)</span> <span class="k">func</span> <span class="n">main</span><span class="p">()</span> <span class="p">{</span> <span class="n">e</span> <span class="o">:=</span> <span class="n">echo</span><span class="o">.</span><span class="n">New</span><span class="p">()</span> <span class="n">e</span><span class="o">.</span><span class="n">GET</span><span class="p">(</span><span class="s">"/users/:name"</span><span class="p">,</span> <span class="n">getUserName</span><span class="p">)</span> <span class="n">e</span><span class="o">.</span><span class="n">Logger</span><span class="o">.</span><span class="n">Fatal</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">Start</span><span class="p">(</span><span class="s">":1323"</span><span class="p">))</span> <span class="p">}</span> <span class="k">func</span> <span class="n">getUserName</span><span class="p">(</span><span class="n">c</span> <span class="n">echo</span><span class="o">.</span><span class="n">Context</span><span class="p">)</span> <span class="kt">error</span> <span class="p">{</span> <span class="n">name</span> <span class="o">:=</span> <span class="n">c</span><span class="o">.</span><span class="n">Param</span><span class="p">(</span><span class="s">"name"</span><span class="p">)</span> <span class="k">return</span> <span class="n">c</span><span class="o">.</span><span class="n">String</span><span class="p">(</span><span class="n">http</span><span class="o">.</span><span class="n">StatusOK</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span> <span class="p">}</span> |
