Oh, my apologies. You also need to pass the request map to the render
method.
(-> (io/resource "public/html/confirm.html")
(cr/render request)
(resp/header "Cache-Control" "no-cache, no-store"))
You could also write it as:
(-> (resp/resource-response "public/html/confirm.html)
(resp/content-type "text/html; charset=utf-8")
(resp/header "Cache-Control" "no-cache, no-store"))
Or write some middleware:
(defn wrap-cache-control [handler cache-control]
(fn [request]
(some-> (handler request)
(resp/header "Cache-Control" cache-control))))
- James
On 27 May 2015 at 13:01, Jonathon McKitrick <jmckitr...@gmail.com> wrote:
> Hmm. I tried this:
>
> (-> (io/resource "public/html/confirm.html")
> (cr/render)
> (resp/header "Cache-Control" "no-cache, no-store"))
>
> and got this:
>
> Exception in thread "main" java.lang.IllegalArgumentException: No single
> method: render of interface: compojure.response.Renderable found for
> function: render of protocol: Renderable, compiling:(pts/server.clj:483:14)
>
> On Tuesday, May 26, 2015 at 8:43:21 AM UTC-4, James Reeves wrote:
>>
>> Compojure uses the compojure.response/render protocol method to turn
>> values like URLs into Ring responses. So you could write:
>>
>> (-> (io/resource "public/html/confirm.html")
>> (compojure.response/render)
>> (response/header "X-Foo" "Bar"))
>>
>> Or you could use some middleware, if the header is standard across your
>> application. Or since you know that you're delivering a HTML file, you
>> could also write:
>>
>> (-> (response/resource-response "public/html/confirm.html")
>> (response/content-type "text/html; charset=utf-8")
>> (response/header "X-Foo" "Bar"))
>>
>> That should result in the same thing, as the only thing Compojure does
>> that Ring doesn't is try to make an educated guess about the content type.
>>
>> - James
>>
>> On 26 May 2015 at 13:22, Jonathon McKitrick <jmcki...@gmail.com> wrote:
>>
>>> I have a GET route returning the result of this:
>>>
>>> (io/resource "public/html/confirm.html")
>>>
>>> but I need to add Cache-Control headers. Since the `resource` function
>>> returns a java.net.URL object, how can I add headers? The normal Ring way
>>> with ring.util.response/header only operates on a Ring response.
>>>
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