Connect to Yammer REST API using PowerShell

How to connect to Yammer REST API using PowerShell. Register an App with Yammer, generate a developer token, connect to REST API and get a list of Yammer groups.

1. Register an App with Yammer

https://www.yammer.com/client_applications

Click here to register a new app

Application Name: Yammer-PowerShell
Organization: Your Organisation
Support email: admin@yourdomain.com
Website: https://www.yourdomain.com
Redirect URI: https://www.yourdomain.com

Tick: Agree to Yammer API Terms of Service

2. Generate a developer token

Copy the developer token and save it in your password manager. 

3. Connect to Yammer REST API - Groups

Now let's use PowerShell to connect to REST API and get a list of Yammer groups

$token = "12345678912-AbcdE1FGh23t4ijKLMnoP"
$url = "https://www.yammer.com/api/v1/groups.json"
$headers = @{ "Authorization" = "Bearer "+$token }

Invoke-WebRequest -Uri $url -Method Get -Headers $Headers 

Reference:

Register An App With Yammer
https://learn.microsoft.com/en-us/rest/api/yammer/app-registration

Yammer REST API endpoints
https://learn.microsoft.com/en-us/rest/api/yammer/rest-api-rate-limits

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