I am able to achieve social login with multiple RESTful resource by following two sample applications from spring, following are the steps:

(1) Checkout https://github.com/spring-guides/tut-spring-security-and-angular-js/tree/master/oauth2

(2) Delete "authserver" folder (We will use auth-server from another project)

(3) Checkout auth-server from social demo: https://github.com/spring-guides/tut-spring-boot-oauth2/tree/master/auth-server

(4) Open application.yml of "ui" project and do following changes:

server.port: 9001
server.context-path: /zuul
debug: true

spring:
  aop:
    proxy-target-class: true


security:
  oauth2:
    client:
      client-id: acme
      client-secret: acmesecret
      access-token-uri: http://localhost:8080/oauth/token
      user-authorization-uri: http://localhost:8080/oauth/authorize
      grant-type: implicit
    resource:
      user-info-uri: http://localhost:8080/me

zuul:
  routes:
    resource:
      path: /resource/**
      url: http://localhost:9000/resource
    user:
      path: /user/**
      url: http://localhost:8080/me

logging:
  level:
    org.springframework.security: DEBUG

(5) Open application.yml of auth-server and add google properties:

google:
  client:
    clientId: <your client id>
    clientSecret: <your client secret>
    accessTokenUri: https://accounts.google.com/o/oauth2/token
    scope: profile,email
    userAuthorizationUri: https://accounts.google.com/o/oauth2/auth
    clientAuthenticationScheme: form
    redirect-uri: http://localhost:8080
  resource:
    userInfoUri: https://www.googleapis.com/plus/v1/people/me

(6) Open SocialApplication.java of auth-server : Add google related bean and filters (similar to facebook and github).

(7) rename application.properties to application.yml of "resource" project following is the content of that yml:

server:
  port: 9000
  context-path: /resource
security:
  oauth2:
    resource:
      user-info-uri: http://localhost:8080/me

logging:
  level:
    org.springframework.security: DEBUG
    org.springframework.web: DEBUG

(8) Now run auth-server, resource and ui projects and hit URL with port 9001 and context /zuul.