[RUBY] If the HTTP method is not specified, the browser side requests with GET

environment

・ Rails 6.0.3.2 ・ Mysql Ver 14.14 Distrib 5.6.47 ・ Osx10.15

Introduction

When I was creating a web application for the first time with Rails, I was wondering if routing could work even though the HTTP method was not specified when using form_with or link_to.

What is routing?

It takes a URI Patternand aHTTP method and is responsible for specifying which action to take. So you need to specify ʻURI Pattern and HTTP method on the browser side.

For example

A description that a certain action moves when the detail button is pressed (this is Prefix)

<%= link_to 'Details', tweet_path(tweet.id), method: :get %>

Toka (this is URI Pattern)

<%= link_to 'Delete', "/tweets/#{tweet.id}", method: :delete %>

HTTP method specification and ʻURI Patternare specified inmethod:`

[Main subject] When HTTP method is not specified

Specifically, the following description

<%= link_to 'Details', tweet_path(tweet.id) %>

Compared to the above example, it works fine without method:: get.

that? I didn't specify the HTTP method? ?? ??

For me as a beginner, why does it work when there is no designation? It was the moment when I didn't understand the rules of routing. .. ..

Conclusion

If you don't specify the HTTP method, the browser will send a request to the server with GET by default! It's just a browser story, regardless of the routing of Rails. (* Corrected by pointing out in the comments)

So even if you don't specify it, the browser will send a ʻURI Patternand aHTTP method`, and an action will work! !!

It was a feeling that I, a beginner, couldn't quite understand that it would work even though it was not specified.

reference

Rails routing ・ Https://railsguides.jp/routing.html