基于表达式的Web服务器

Question

我正在尝试创建一个基于正则表达式匹配调用功能的Web服务器。 以下是一个例子。 但是，我在调用匹配函数时遇到问题。 此代码导致node.js崩溃，原因是对象方法不是函数。 我究竟做错了什么？

http = require "http"

http.createServer( (req, res) ->
    res.writeHead 200, {"Content-Type": "text/plain"}
    res.end handle req
).listen 8080

console.log "Server running at http://127.0.0.1:8080/"

paths = [
    method: home, expression: "/"
    method: user, expression: "/user"
]

home = (req) ->
    return "This is the home"

user = (req) ->
    return "This is a user page"

handle = (req) ->
    for path in paths
        if req.url.match path.expression
            console.log path.expression
            return path.method req

Answer 1

• 创建paths未定义home / user 。
• paths不会以这种方式构成对象数组。 （见常见问题 。）

尝试：

http = require "http"

http.createServer (req, res) ->
    res.writeHead 200, "Content-Type": "text/plain"
    res.end handle req
.listen 8080

console.log "Server running at http://127.0.0.1:8080/"

home = (req) -> "This is the home"
user = (req) -> "This is a user page"

paths = [
    {} = method: home, expression: "/"
    {} = method: user, expression: "/user"
]

handle = (req) ->
    for path in paths
        if req.url is path.expression
            console.log path.expression
            return path.method req