sending a json body with http:request

Tim Fletcher <>
Thu Jan 28 23:55:25 CET 2010

> mochijson2:encode/1 returns binary so do I need to use binary_to_list on it?

I think mochijson2:encode/1 returns an iolist, not a binary. You can
use the iolist_to_binary function to convert to binary.

> Do I need to url encode the Params?

If you're sending content as "application/x-www-form-urlencoded", then
it should be encoded appropriately:

Note that this is different to the URI encoding defined in RFC 3986.

> Is there a url encoding function in erlang other then edoc_lib:escape_uri/1?

AFAIK, no. That doesn't appear to encode as application/x-www-form-
urlencoded though.

I put together a comparison of several different encoding
implementations here:

Is there a reason the server expects a mixture of JSON *and* form
urlencoded params? Surely it would be easier to just send a JSON
encoded body...


More information about the erlang-questions mailing list