Thanks a lot
we modify the hello code to following:
(ns examples.simple-http-server)
(require
'[io.vertx.clojure.core.core :as core]
'[io.vertx.lang.clojure.vertx :as vertx]
'[io.vertx.lang.clojure.http-server :as server]
'[io.vertx.lang.clojure.http-server-request :as request]
'[io.vertx.lang.clojure.http-server-response :as response])
(defn handle-request [req]
(let [response (request/response req)]
(response/put-header response "content-type" "text/plain")
(response/end response "Hello from Vert.x!")))
(defn start [vertx]
(let [http-server (vertx/create-http-server vertx)]
(server/request-handler http-server (core/handler handle-request))
(server/listen http-server 8080)))
and we also have one problem
On Wednesday, January 10, 2018 at 6:52:53 PM UTC+8, Gary Verhaegen wrote:
>
> It’s not clear what the "do" is supposed to mean in those defns (unless
> there’s some deep dark magic going on, they are currently not doing
> anything and you can just remove them), and you very likely want "let"
> instead of "def" for the local variables.
>
> def in Clojure does not follow lexical scoping rules; it’s always a global
> name.
>
> On 10 Jan 2018, at 10:25, Feuer Au <[email protected] <javascript:>>
> wrote:
>
> And here is the simple example "Hello from Vert.x!" like other languages
> on the Vert.x official frontpage:
>
> (ns examples.simple-http-server)
>
> (require
> '[io.vertx.clojure.core.core :as core]
> '[io.vertx.lang.clojure.vertx :as vertx]
> '[io.vertx.lang.clojure.http-server :as server]
> '[io.vertx.lang.clojure.http-server-request :as request]
> '[io.vertx.lang.clojure.http-server-response :as response])
>
> (defn handle-request [req]
> do
> (def response (request/response req))
> (response/put-header response "content-type" "text/plain")
> (response/end response"Hello from Vert.x!"))
>
> (defn start [vertx]
> do
> (def http-server (vertx/create-http-server vertx))
> (server/request-handler http-server (core/handler handle-request))
> (server/listen http-server 8080))
>
> Pretty straight forward, but we could make it better
> e.g. combine different namespaces into one single would be nice
> and we got pure functions in different namespaces
> hmmm...., it looks nice.
>
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