LinkedIn v2

WARNING: DANGER WILL ROBINSON

This is very much a work in progress. Currently only the shares/social stream, organization, and media upload related endpoints have been verified to work. Having said that, those endpoints are using this gem in a production application, so they're reliable enough. :)

Many endpoints still need to be written, and as I don't have the requisite partner status w/ LinkedIn, I can't develop against the jobs API. Many of the specs still fail. Caveat emptor

NOW BACK TO YOUR REGULARLY SCHEDULED PROGRAMMING

Ruby wrapper for v2 if the LinkedIn API. This gem is entirely based on emorikawa's excellent linkedin-oauth2 gem.

If you are using OAuth 1.0, see hexgnu/linkedin If you are using OAuth 2.0 and the v1 LinkedIn API, see emorikawa/linkedin-oauth2, on which this gem is based.

Installation

In Bundler:

gem "linkedin-v2", "~> 0.1.0"

Otherwise:

[sudo|rvm] gem install linkedin-v2

Usage

Step 1: Register your application with LinkedIn. They will give you a Client ID (aka API Key) and a Client Secret (aka Secret Key)

Step 2: Use your Client ID and Client Secret to obtain an Access Token from some user.

Step 3: Use an Access Token to query the API.

api = LinkedIn::API.new(access_token)
me = api.profile

Step 1: Register your Application

You first need to create and register an application with LinkedIn here.

You will not be able to use any part of the API without registering first.

Once you have registered you will need to take note of a few key items on your Application Details page.

1. API Key - We refer to this as your client id or client_id
2. Secret Key - We refer to this as your client secret or client_secret
3. Default Scope - This is the set of permissions you request from users when they connect to your app. If you want to set this on a request-by-request basis, you can use the scope option with the auth_code_url method.
4. OAuth 2.0 Redirect URLs - For security reasons, the url you enter in this box must exactly match the redirect_uri you use in this gem.

You do NOT need OAuth User Token nor OAuth User Secret. That is for OAuth 1.0. This gem is for OAuth 2.0.

Step 2: Getting An Access Token

All LinkedIn API requests must be made in the context of an access token. The access token encodes what LinkedIn information your AwesomeApp® can gather on behalf of "John Doe".

There are a few different ways to get an access token from a user.

1. You can use LinkedIn's Javascript API to authenticate on the front-end and then pass the access token to the backend via this procedure.

2. If you use OmniAuth, I would recommend looking at decioferreira/omniauth-linkedin-oauth2 to help automate authentication.

3. You can do it manually using this linkedin-oauth2 gem and the steps below.

Here is how to get an access token using this linkedin-oauth2 gem:

Step 2A: Configuration

You will need to configure the following items:

1. Your client id (aka API Key)
2. Your client secret (aka Secret Key)
3. Your redirect uri. On LinkedIn's website you must input a list of valid redirect URIs. If you use the same one each time, you can set it in the LinkedIn.configure block. If your redirect uris change depending on business logic, you can pass it into the auth_code_url method.

# It's best practice to keep secret credentials out of source code.
# You can, of course, hardcode dev keys or directly pass them in as the
# first two arguments of LinkedIn::OAuth2.new
LinkedIn.configure do |config|
  config.client_id     = ENV["LINKEDIN_CLIENT_ID"]
  config.client_secret = ENV["LINKEDIN_CLIENT_SECRET"]

  # This must exactly match the redirect URI you set on your application's
  # settings page. If your redirect_uri is dynamic, pass it into
  # `auth_code_url` instead.
  config.redirect_uri  = "https://getawesomeapp.io/linkedin/oauth2"
end

Step 2B: Get Auth Code URL

oauth = LinkedIn::OAuth2.new

url = oauth.auth_code_url

Step 2C: User Sign In

You must now load url from Step 2B in a browser. It will pull up the LinkedIn sign in box. Once LinkedIn user credentials are entered, the box will close and redirect to your redirect url, passing along with it the OAuth code as the code GET param.

Be sure to read the extended documentation around the LinkedIn::OAuth2 module for more options you can set.

Note: The OAuth code only lasts for ~20 seconds!

Step 2D: Get Access Token

code = "THE_OAUTH_CODE_LINKEDIN_GAVE_ME"

access_token = oauth.get_access_token(code)

Now that you have an access token, you can use it to query the API.

The LinkedIn::OAuth2 inherits from intreda/oauth2's OAuth2::Client class. See that gem's documentation for more usage examples.

Step 3: Using LinkedIn's API

Once you have an access token, you can query LinkedIn's API.

Your access token encodes the permissions you're allowed to have. See Step 2 and this LinkedIn document for how to change the permissions. See each section's documentation on LinkedIn for more information on what permissions get you access to.

People

TBD

Organizations

Detailed overviews of Organizations

See https://developer.linkedin.com/docs/guide/v2/organizations

# Organization info
api.organization(name: "google")
api.organization(id: 12345)
api.organization(urn: 'urn:li:organization:12345')

Jobs

DON'T HAVE ACCESS. :(

### Share and Social Stream

View and update content on social streams

See https://developer.linkedin.com/docs/guide/v2/shares

```ruby
# Your news feed
api.shares

api.share(content: "hi")

# For a particular feed item
api.comments(urn: "urn:li:article:12345")
api.likes(urn: "urn:li:article:12345")

api.like(urn: "urn:li:activity:12345")
api.unlike(urn: "urn:li:activity:12345")

Communications

TBD

Documentation

On RubyDoc here

Read the source for LinkedIn::API and LinkedIn::OAuth2

Contributing

Please see CONTRIBUTING.md for details.

Credits

Huge, huge props to Evan Morikawa for writing the v1 version of this gem. This gem is pretty much all of that work, but gutted and replaced with v2 endpoints.

• Evan Morikawa (emorikawa)
• Matt Kirk (hexgnu)
• Wynn Netherland (pengwynn)
• Josh Kalderimis (joshk)
• Erik Michaels-Ober (sferik)
• And Many More Contributors

License

Copyright ©️ 2018-present Mike Desjardins 2014-2018 Evan Morikawa 2013-2014 Matt Kirk 2009-11 Wynn Netherland and contributors. It is free software, and may be redistributed under the terms specified in the MIT-LICENSE file. See LICENSE for details.