clojure - get agent content and convert it to JSON -

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i'm still newbie in clojure , i'm trying build application read 2 files , write diffrence on json file

(defn read-csv   "reads data."  [] (with-open [rdr (                     io/reader  "resources/staples_data.csv")]   (doseq [line (rest(line-seq rdr))]    (println(vec(re-seq #"[^,]+" line))))))  (defn read-psv   "reads data."  [] (with-open [rdr (                     io/reader  "resources/external_data.psv")]   (doseq [line (rest(line-seq rdr))]   ; (print(vec(re-seq #"[^|]+" line)))))) (doall(vec(re-seq #"[^|]+" line))))))   (defn process-content []   (let [csv-records (agent read-csv)         psv-records (agent read-psv)]       (json/write-str {"my-data" @csv-records "other-data" @psv-records}))   )

im getting exception: exception don't know how write json of class $read_csv clojure.data.json/write-generic (json.clj:385)

please some explanation, in advance!

you giving agent function initial value. perhaps meant asynchronous call function instead? in case, future better match scenario shown. agent synchronous, it's send , send-off async, , assume propagating state across calls doesn't match usage here.

(defn process-content []   (let [csv-records (future-call read-csv)         psv-records (future-call read-psv)]       (json/write-str {"my-data" @csv-records "other-data" @psv-records})))

the problem after doseq side effects, , returns nil. if want results read csv files (evaluating eagerly still in scope of with-open call), use (doall (for ...)) replacement (doseq ...). also, println in read-csv need removed, or replaced (doto (vec (re-seq #"[^,]+" line)) println) because println returns nil, , assume want actual data file, not list of nils.


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