erlang - 如何在 ChicagoBoss 路由中添加多个参数

Question

我正在尝试使以下链接正常工作： http://localhost:8001/name/jason/grey

和路线定义：

{"/name/([a-zA-Z]+)/([a-zA-Z]+)", [{controller, "stuff"}, {action, "getStudentNames"}, [{firstname, '$1'}, {lastname, '$2'}]]}.

然后在我的控制器中

getStudentNames('GET', [FirstName, LastName])->
  {output, "ok"}.

我收到以下错误消息

CRASH REPORT Process <0.313.0> with 0 neighbours exited with reason: no function clause matching boss_router_controller:'-index_and_extract_params/1-fun-0-'([{firstname,'$1'},{lastname,'$2'}], []) line 258 in gen_server:terminate/7 line 812

似乎我的路线定义不正确，有什么帮助吗？

Answer 1

终于让它工作了，以防万一有人遇到同样的问题。不要在路由定义中使用元组列表来定义参数，而是使用以逗号分隔的元组，例如

{"/name/([a-zA-Z]+)/([a-zA-Z]+)", [{controller, "stuff"}, {action, "getStudentNames"}, {firstname, '$1'}, {lastname, '$2'}]}.