clojure.lang.ExceptionInfo: clojure.lang.ArityException in Interceptor :muuntaja.interceptor/exceptions - Wrong number of args (2) passed to: interceptor/exception-interceptor/fn--23252

[mynomoto]

The function on the error handler on muuntaja.interceptor/exception-interceptor should accept two arguments instead of one as per http://pedestal.io/reference/error-handling#_error_function
I think this is a difference of implementation between pedestal and sieppari so the tests did not catch that.

[ikitommi]

Hi. At 0.6.0 we decided to move from pure pedestal-based interceptor model to Sieppari-based model. Will update the README accordingly.

We are trying to push a common interceptor spec, like ring-spec, which would help to create a larger ecosystem for Clojure. There is #interceptors channell in Slack to discuss about these.

For pedestal, two options:

1. use the pedestal exception handling to handle Muuntaja exceptions
2. let's create thin wrapper pedestalify that wraps a Sieppari-style interceptors (:error, which is the only difference) into Pedestal-style interceptors

https://github.com/metosin/muuntaja/blob/master/CHANGELOG.md#060-392018