linkedin login using omniauth

Hi,

I am trying to add linkedin login feature in my rails application using omniauth gem…I used omniauth gem for Fb login and it’s working fine…but it’s not working for linkedin login

this is my code

/model/user.rb

class User < ActiveRecord::Base

attr_accessible :name, :oauth_expires_at, :oauth_token, :provider, :uid

def self.from_omniauth(auth)

where(auth.slice(:provider, :uid)).first_or_initialize.tap do |user|

user.provider = auth.provider

user.uid = auth.uid

user.name = auth.info.name

user.oauth_token = auth.credentials.token

user.oauth_expires_at = Time.at(auth.credentials.expires_at)

user.save!

end

end

/controller/sessions_controller.rb

class SessionsController < ApplicationController

def create

user = User.from_omniauth(env[“omniauth.auth”])

session[:user_id] = user.id

redirect_to root_url

end

def destroy

session[:user_id] = nil

redirect_to root_url, :notice => “Signed out!”

end

end

/config/initializer/omniauth.rb

OmniAuth.config.logger = Rails.logger

Rails.application.config.middleware.use OmniAuth::Builder do

provider :facebook, ‘###########’, ‘###########’

provider :linkedin, “##########”, “##############”, :scope => ‘r_fullprofile r_emailaddress r_network’, :fields => [“id”, “email-address”, “first-name”, “last-name”, “headline”, “industry”, “picture-url”, “public-profile-url”, “location”, “connections”]

end

end

Error:

TypeError in SessionsController#create

can't convert nil into an exact number

Application Trace | Framework Trace | Full Trace

app/models/user.rb:12:in `at'
app/models/user.rb:12:in `block in from_omniauth'
app/models/user.rb:7:in `tap'
app/models/user.rb:7:in `from_omniauth'
app/controllers/sessions_controller.rb:6:in `create'

Request

Parameters:

 {"oauth_token"=>"ed161640-d196-4fc6-adfe-771d5f6fd322",
"oauth_verifier"=>"57451",
"provider"=>"linkedin"}

Show session dump

Show env dump

Response

Headers:

None



I am not sure what fields I need to add or remove from user table and what changes required in controller and model

please help

Thanks

You have not told us which line this is, but I presume it is
      user.oauth_expires_at = Time.at(auth.credentials.expires_at)
What is the value of auth.credentials.expires_at, which seems to be
the value it is complaining about?

Colin

oauth_expires_at is a column in user table and It gives date and time…which I used for facebook login…But why it’s giving problem with linkedin.?