NodeMVC, The MVC Framework in Node.js

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    +--------------------+--------------------+
    |              http request               |
    +--------------------+--------------------+
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    +--------------------+--------------------+
    |                *koa/other               |
    +--------------------+--------------------+
                         |
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    +--------------------+--------------------+
    |                   MVC                   |
    +--------------------+--------------------+
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    +--------------------+--------------------+                       +-----------------------------------------------------+
    |           MvcHttpApplication            |                       |                                                     |
    +--------------------+--------------------+                       |                          |                          |
                         |                                            |                         \|/                         |
                         |                                            |            +-------------+-------------+            |
                        \|/                                           |            |  MvcControllerHttpHandler |            |
    +--------------------+--------------------+                       |            +-------------+-------------+            |
    |               *IHttpModule              |                       |                          |                          |
    +--------------------+--------------------+                       |                         \|/                         |
                         |                                            |            +-------------+-------------+            |
                         +-------------------------------+            |            |         Controller        |            |
                        \|/                              |            |            +-------------+-------------+            |
    +--------------------+--------------------+          |            |                          |                          |
    |                MvcHttpModule            |<---------)----------->|                         \|/                         |
    +--------------------+--------------------+          |            |            +-------------+-------------+            |
                         |                               |            |            |   Action & Model & View   |            |
                         +-------------------------------+            |            +-------------+-------------+            |
                        \|/                              |            |                          |                          |
    +--------------------+--------------------+          |            |                         \|/                         |
    |               *IHttpModule              |          |            |                                                     |
    +--------------------+--------------------+          |            +--------------------------+--------------------------+
                         |                               |                                       |
                         |                               |                                       |
                         |                              \|/                                      |
                         |<------------------------------+---------------------------------------+
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    +--------------------+--------------------+
    |              http response              |
    +--------------------+--------------------+
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