Can't sign a claims map

[rcanepa]

I added to my project the dependency [buddy/buddy-sign "1.1.0"] to implement authentication features. However, for some reason this simple example doesn't work (from the repl):

(require '[buddy.sign.jws :as jws])
;; this work
(jws/sign "a" "secret")
;; => "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXUyJ9.YQ.fbSW5D1FbwwcFijKn6aSghRHIwcpE102OKAvkfxsxls"

;; this doesn't work
(jws/sign {:a 100} "secret") ;; throws an error

And this is the error message:
IllegalArgumentException No implementation of method: :-to-bytes of protocol: #'buddy.core.codecs/IByteArray found for class: clojure.lang.PersistentArrayMap clojure.core/-cache-protocol-fn (core_deftype.clj:568)

I am getting a similar error if I try to sign an integer:
IllegalArgumentException No implementation of method: :-to-bytes of protocol: #'buddy.core.codecs/IByteArray found for class: java.lang.Long clojure.core/-cache-protocol-fn (core_deftype.clj:568)

Looking the sign implementation (from cursive), I see that it has a pre clause to enforce the use of a map as the claims container, which contradicts the results I am getting.

(defn sign
  "Sign arbitrary length string/byte array using
  json web token/signature."
  ;; The exp nbf and iat keys in the options are deprecated
  ;; and will be removed in the next version.
  [claims pkey & [{:keys [alg typ] :or {alg :hs256 typ :jws} :as opts}]]
  {:pre [(map? claims)]}
  (let [header (encode-header alg typ)
        claims (encode-claims claims opts)
        signature (calculate-signature {:key pkey
                                        :alg alg
                                        :header header
                                        :claims claims})]
    (str/join "." [header claims signature])))

Any idea of what could be the problem?

[rcanepa]

It seems that I found the problem. I am using the old API right?... here https://github.com/funcool/buddy-sign/blob/master/CHANGES.adoc I found that I should use the jwt namespace instead of the jws for my purposes. Is that right?

[niwinz]

Yes, is that right, jws and jwe namespaces are low-level api that works with bytes payload as RFC specifies.

[rcanepa]

Thanks!... everything worked great.