In this blog, you will see how to get announcements from a specific Yammer group using PowerShell.

Prerequisites

Go to https://www.yammer.com/client_applications and register an app.

Once the app is registered, generate a developer token.

Copy the below script and paste it in a notepad. Save the file as GetAnnouncements.ps1.

  1. # Input Parameters
  2. $developerToken = "12240-******PR2NWpZVtnbXYw"
  3. $groupID="15653442"
  4. $uri="https://www.yammer.com/api/v1/messages/in_group/"+$groupID+".json"
  5. $headers = @{ Authorization=("Bearer " + $developerToken) }
  7. Function GetAnnouncements($pageNo)
  8. {
  9. # Invoke Web Request
  10. $webRequest = Invoke-WebRequest –Uri $uri –Method Get -Headers $headers
  12. # Check whether the status code is 200
  13. if ($webRequest.StatusCode -eq 200) {
  15. # Converts a JSON-formatted string to a custom object or a hash table.
  16. $results = $webRequest.Content | ConvertFrom-Json
  18. # Loop through all the messages
  19. $results.messages | ForEach-Object {
  20. $message = $_
  22. # Check if the message type is announcement
  23. if($message.message_type -eq "announcement")
  24. {
  25. # Display the announcement title
  26. Write-Host -ForegroundColor Green $message.title
  27. }
  28. }
  30. # Check if there are more items available
  31. if($results.more_available)
  32. {
  33. GetUsers($pageNo+1)
  34. }
  35. }
  36. else {
  37. Write-Host -ForegroundColor Yellow "An error has occurred: " + $webRequest.StatusCode + " Description " + $webRequest.Status
  38. }
  39. }
  41. # Call the function
  42. GetAnnouncements(1)

Open PowerShell window and run the following command.

  1. >cd "<folderlocation>"

folderlocation – GetAnnouncements.ps1 file location

Run the following command,

  1. >.\GetAnnouncements.ps1

Thus in this blog, you saw how to get announcements from a specific Yammer group using PowerShell.