Sending a DELETE request from Sinatra

Question

I am trying to develop a RESTful Sinatra application. Now, I know how to respond to a delete request with something like

delete '/user/:id' do |id|
   #do something in the model
end

What I am interested in is how do I get to execute that method. I can't have link that does a DELETE instead of a GET, can I?

The only solution I found so far is sending a DELETE request via jQuery: How to send a PUT/DELETE request in jQuery?

I tried looking into different RESTful Sinatra projects on github but my Ruby knowledge is probably to limited to get how they are doing it.

score 28 · Accepted Answer · answered Mar 02 '11 at 15:48

28

Put following line in your code.

use Rack::MethodOverride

It will help you interpret post methods with parameter "_method" with value "delete" as put. Then you can write

delete '/user/:id' do |id|

answered Mar 02 '11 at 15:48

Zimbabao

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5

in fact, I this is necessary if he is using a Modular app. Sinatra Classy apps get this set by default. – include Sep 16 '11 at 14:48
1

For Sinatra modular style, instead of "use Rack::MethodOverride" you can add this to your app class that inherits from Sinatra::Base: "set :method_override, true" – Ronny Ager-Wick Nov 17 '14 at 10:25

score 16 · Answer 2 · answered Mar 02 '11 at 11:10

16

I thinks it's like the Rails way. You need define a params '_method' with 'delete' value and add it on your form.

When you POST you form with this particular params, you do a DELETE request in sinatra.

Like :

<form action="/search" method="post">
  <div style="margin:0;padding:0">
    <input name="_method" type="hidden" value="delete" />
  </div>
</form>

It's the same with PUT method

answered Mar 02 '11 at 11:10

shingara

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any reference as to why? – CalamityAdam Jul 17 '19 at 18:46

score 4 · Answer 3 · edited Nov 28 '12 at 04:01

4

Another way is to use Curl:

curl -X DELETE http://host/user/1

edited Nov 28 '12 at 04:01

the Tin Man

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answered Sep 07 '11 at 07:07

bianster

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score 0 · Answer 4 · answered May 28 '12 at 17:26

0

  %form{:action => "/note/delete/#{@note.id}", :method => "post"}
    %input{:type => 'submit', :name=> "_method", :value => 'delete', :class => 'button'}

You can also trigger the delete route with a button like so

answered May 28 '12 at 17:26

Theta

175
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score 0 · Answer 5 · edited May 23 '17 at 12:08

0

see also Call Sinatra delete route with jQuery for how to do this with jQuery and JSON at the front end and Sinatra on the back end.

edited May 23 '17 at 12:08

Community

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answered Nov 28 '12 at 03:45

Dave Sag

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Sending a DELETE request from Sinatra

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