Easy to add custom serializators about compojure-api

[ikitommi]

1.2.0-SNAPSHOT has the new api key :formats (: format is asserted away), here's the doc for for the key:

• :formats for Muuntaja middleware. Value can be a valid muuntaja options-map,
  a Muuntaja instance or nil (to unmount it). See
  https://github.com/metosin/muuntaja/wiki/Configuration for details.

Comments welcome.

[yogsototh]

I actually wrote a middleware to generate csv format. And that would be very helpful.

Could you help me on another related subject? I have a middleware that transform the body of the ring response. I replace a map by a raw string. Unfortunately, the string is escaped. I don't really see how to prevent this transformation.

 (defn wrap-excel [handler]
    (fn [request]
      (let [new-request (update-in request [:meta :produces]
                                   #(concat % ["application/csv"]))
            response (handler new-request)]
        (if (= (get-in response [:headers "accept"]) "application/csv")
          (to-csv result)
          result))))

where to-csv do mostly an (update-in response [:body] map-to-csv-raw-string)

thanks

[ikitommi]

Hmm.. escaped? Not sure, but there is a serialization hint, allowing one to
return raw primitives, might help, see:

https://github.com/metosin/compojure-api/blob/master/test/compojure/api/middleware_test.clj

https://github.com/metosin/compojure-api/blob/master/src/compojure/api/meta.clj#L31-L33

does this help?
On 16 Dec 2014 11:19, "Yann Esposito" [email protected] wrote:

I actually wrote a middleware to generate csv format. And that would be
very helpful.

Could you help me on another related subject? I have a middleware that
transform the body of the ring response. I replace a map by a raw string.
Unfortunately, the string is escaped. I don't really see how to prevent
this transformation.

(defn wrap-excel [handler](fn [request]
%28let [new-request %28update-in request [:meta :produces]
#%28concat % ["application/csv"]%29%29
result %28handler new-request%29]
%28if %28= %28get-in request [:headers "accept"]) "application/csv")
(to-csv result)
result))))

where to-csv do mostly an (update-in (handler request) [:body]
map-to-csv-raw-string)

thanks

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[yogsototh]

Thanks, it helped me a lot! You rocks!

I had to write it like that:

(assoc response
            :compojure.api.meta/serializable? false
            :body (to-csv (:body res)))

[ikitommi]

we are about to release a new web-formats library soon. Will cover this and more.

[ikitommi]

´1.2.0-alpha2´