How to redirect in webmachine
June 17th, 2009
2 comments
Recently I was looking for an example on how to do redirect in webmachine. Unfortunately I haven’t found one. So I started figuring it out by myself. After try and error using brilliant wmtrace_resource It turned out to be trivial ;). Here is the example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | %% @doc Example of redirect webmachine_resource. -module(redirect_resource). -export([init/1, resource_exists/2, moved_temporarily/2, previously_existed/2]). -include_lib("webmachine/include/webmachine.hrl"). init([]) -> {ok, undefined}. moved_temporarily(ReqData, Context) -> Site = wrq:path_info(site, ReqData), Location = base64:decode(Site), {{true, Location}, ReqData, Context}. previously_existed(ReqData, Context) -> {true, ReqData, Context}. resource_exists(ReqData, Context) -> {false, ReqData, Context}. |
The resource is mapped in my dispatch.conf as
{["redirect", site], redirect_resource, []}.
You can do a request like http://host.com/redirect/aHR0cDovL2xhbWJkZXIuY29t
The redirect_resource will interpret the last token in the path as base64 encoded location to redirect to.
