App Credentials

LinkedIn API

Tag
  1. API
Name
LinkedIn API
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Sign up & log in to LinkedIn.
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Create app after visiting https://developer.linkedin.com/ .
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You must enter and register the App Name, LinkedIn Page, and App logo.
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If you do not have a page, you can create a new one at https://www.linkedin.com/company/setup/new .
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You can choose a company, brand page, etc. I created it as a company.

App Page Description

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You can check the apps you created in My apps.

Setting Tab

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Please verify the linked page.

Auth Tab

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Application credentials: Save the Client ID and Client Secret key values in a notepad.
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OAuth 2.0 settings
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You need to get a separate token issued. The token is valid for about 2 months. (5184000 seconds = 8 weeks 4 days)
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Make sure the URL below is added to Authorized redirect URLs.
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https://datapopcorn.win/rest/oauth2-credential/callback
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https://www.linkedin.com/developers/tools/oauth/redirect
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OAuth 2.0 scopes (define what actions the app can perform on behalf of the user)
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Openid: use name and photo
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Profile : Use your name and photo
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W_member_social : Create, edit and delete posts, comments and reactions on behalf of users.
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Email: Use the primary email address associated with your LinkedIn account

Products Tab

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App type: Standalone app. Please proceed with Request Access for the two Products below.
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Share on LinkedIn (scope : openId)
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/V2/userinfo
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Sign In with LinkedIn using OpenID Connect (scope: w_member_social)
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/V2/aseets
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/V2/posts
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/V2/reactions
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/V2/shares

Analytics Tab

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Check your API usage

Team members

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Manage the App Manager.

Create OAuth 2.0 access token

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Obtain an Access Token from OAuth Token Tools.
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Check all scopes.
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You can check the validity of the previously generated token in Inspect OAuth 2.0 access token.
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Status verifies that this token is currently valid.
curl --location --request POST 'https://www.linkedin.com/oauth/v2/introspectToken' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'token=<YOUR TOKEN>' \ --data-urlencode 'client_id=<>' \ --data-urlencode 'client_secret=<>' curl --location --request POST 'https://www.linkedin.com/oauth/v2/introspectToken' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'token=AQUlOLvYRLpibQmgCrAApwhOSIHMJQPuMSrBvxT15t8eQuLWfAb64tllCMOoMRLT2My9O64wOHDjUS-7Q0sahveNEfEyF5_h4saXNCKaP5FJJlXInD2wva36wLLZVq2WHCb5ATkTlJtFfv-6tLAqvqUE4D-DroqgI4aPvdg-_qRISSvrPMR9vVXSLjOLVk5mVXAuL1ceCkH9b9qcy37T0pqD9RvEra8irwMzE822GucOZptggh-UsaV3eCBp3hLafF5oIOz7AYfpm4_vKFVFLN5A_H6AcHSoR2BkBPR7PWQrFvDwzrrjDh4aTmLTVvJ6pUXwEOtoTUE-BFuha0WvWr2SmdnQxA' \ --data-urlencode 'client_id=86tlyd8qd8jmvk' \ --data-urlencode 'client_secret=WPL_AP1.3ubGoWHmnXS3lZRg.4dcj2w=='

Advertising API application process (for pages)

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You must complete this process to post to your company page (organization) account. If you only want to post to your personal account, skip this step.
After applying, your permissions will increase as shown below.
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For reference, r is read permission and w is write permission.
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Reissue a new OAuth 2.0 Access Token.
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You can see that there are a lot of permissions that I have requested. I don't need all of them, but I just requested them all.
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Use a new token that reflects the Permissions Scope.

Reference

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3-lagged Oauth method.
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It is a fairly complicated process to receive an authentication code.
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Set it to Standard and enter the authentication information below.
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Once you grant permission, you will be able to post on LinkedIn.
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I wrote and ran it like this : datapopcorn page - upload and the result was urn:li:share:7260924359517614080 .
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When I went to the actual page, it was posted correctly as shown below.

Glossary of Terms

URNs and IDs

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URNs are used to represent foreign associations to an entity (persons, organizations, and so on) in an API. A URN is a string-based identifier with the format:
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Urn:{namespace}:{entityType}:{id}
For example:
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Urn:li:person:123
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Urn:li:organization:456
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Difference between URN and ID.
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