omniauth-siwe's Introduction

Omniauth::Siwe

OmniAuth strategy for Sign In With Ethereum (SIWE)

Installation

Add this line to your application's Gemfile:

gem 'omniauth-siwe'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install omniauth-siwe

Usage

To use either oidc.login.xyz or a self-hosted alternative, you must first register as a client using the request below as an example, filling in your application's own redirection URIs.

$ curl -X POST 'https://oidc.login.xyz/register' \
  -H 'Content-type: application/json' \
  --data '{"redirect_uris": ["http://localhost:3000/auth/siwe/callback"]}'

{"client_id":"your-identifier","client_secret":"your-secret","redirect_uris":["http://localhost:3000/auth/siwe/callback"]}%

Then you have to configure the OmniAuth provider like the example below: If you are using oidc.login.xyz, then you only need to fill in your credentials, otherwise you will need to change host, port and scheme according to the chosen host.

Rails.application.config.middleware.use OmniAuth::Builder do
  configure do |config|
    config.path_prefix = '/auth'
    config.allowed_request_methods = %i[post get]
  end

  # other providers

  issuer = 'https://oidc.login.xyz/'
  client_options = {
    scheme: 'https',
    host: 'oidc.login.xyz',
    port: 443,
    authorization_endpoint: '/authorize',
    token_endpoint: '/token',
    userinfo_endpoint: '/userinfo',
    jwks_uri: '/jwk',
    identifier: 'your-identifier',
    secret: 'your-secret'
  }

  provider :siwe, issuer: issuer, client_options: client_options
end

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