Rails route.rb帮助

Question

thanks in advance for your help!!

I have in routes.rb :

get 'api/streets:name' => 'streets#get_by_name', as: "get_by_name"

I have in streets_controller.rb :

ids = params[:name]

I have in Javascript:

const params = encodeURI('name[]=1&name[]=2')
fetch(`/api/streets?${params}`)

When I call the api from the front end, I get the following log message:

Started GET "/api/streets?name%5B%5D=2&name%5B%5D=5" for 127.0.0.1 at 2019-09-06 17:10:59 -0700
   Rendering pages/index.html.erb within layouts/application
Processing by PagesController#index as */*
   Parameters: {"name"=>["2", "5"], "path"=>"api/streets"}
   Rendered pages/index.html.erb within layouts/application (7.1ms)
   Rendering pages/index.html.erb within layouts/application

Why is it using the PagesController and not the StreetsController?

In all other cases where I'm getting and posting and putting and deleting on the api, the router knows what controller to use. It's just this one case when I'm using array parameters where it's routing to the wrong controller.

It's probably just something dumb I've done.

Answer 1

Your route expects a path like: /api/streets123 - where params[:name] would be equal to "123" and no, that's not a typo.

You should just use:

get 'api/streets' => 'streets#get_by_name', as: "get_by_name"

If you need to enforce the existence of the :name parameter then you should use the :constraints option .