Reads one JSON value from input String or Reader.
If keywordize? is true (default), object keys will be converted to
keywords. If eof-error? is true (default), empty input will throw
an EOFException; if false EOF will return eof-value.
;;Clojure 1.2 and newer (see below)
;;Note that the read is done into a Clojure data structure
user=> (read-json "{\"name\": \"Steven\"}")
{:name "Steven"}
user=> (class (read-json "{\"name\": \"Steven\"}"))
clojure.lang.PersistentArrayMap
Source
clojure/contrib/json.clj:189
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(defn read-json
"Reads one JSON value from input String or Reader.
If keywordize? is true (default), object keys will be converted to
keywords. If eof-error? is true (default), empty input will throw
an EOFException; if false EOF will return eof-value. "
([input]
(read-json-from input true true nil))
([input keywordize?]
(read-json-from input keywordize? true nil))
([input keywordize? eof-error? eof-value]
(read-json-from input keywordize? eof-error? eof-value)))
Comments top
1 comment(s) for read-json.
The read-json function has undergone a transformation between 1.1 and 1.2 beta1.
The function has moved from clojure.contrib.json.read to clojure.contrib.json.
The function also has a different default behavior in 1.2 beta1 compared to 1.1.
Clojure 1.1.0 user=> (use 'clojure.contrib.json.read) nil user=> (read-json "{\"name\": \"Steven\"}") {"name" "Steven"} user=> (get *1 "name") "Steven" user=>Clojure 1.2.0-beta1 user=> (use 'clojure.contrib.json) nil user=> (read-json "{\"name\": \"Steven\"}") {:name "Steven"} user=> (get *1 "name") nil user=>To get 1.1 behavior in 1.2 beta1 you have to pass false as second argument (keywordize?):
Clojure 1.2.0-beta1 user=> (use 'clojure.contrib.json) nil user=> (read-json "{\"name\": \"Steven\"}" false) {"name" "Steven"} user=> (get *1 "name") "Steven" user=>Clojure 1.1.0 user=> (use 'clojure.contrib.json.read) nil user=> (read-json "{\"name\": \"Steven\"}") {"name" "Steven"} user=> (get *1 "name") "Steven" user=>Clojure 1.2.0-beta1 user=> (use 'clojure.contrib.json) nil user=> (read-json "{\"name\": \"Steven\"}") {:name "Steven"} user=> (get *1 "name") nil user=>To get 1.1 behavior in 1.2 beta1 you have to pass false as second argument (keywordize?):Clojure 1.2.0-beta1 user=> (use 'clojure.contrib.json) nil user=> (read-json "{\"name\": \"Steven\"}" false) {"name" "Steven"} user=> (get *1 "name") "Steven" user=>