How To Get Messages For A Specific Topic In Yammer Using PowerShell

In this blog, you will see how to get the messages for a specific topic in Yammer using PowerShell.

In this blog, you will see how to get messages for a specific topic in Yammer 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 GetMessages.ps1.

# Input Parameters
$developerToken = "12240-*****PR2NWpZVtnbXYw"
$topicID="32397927"
$uri="https://www.yammer.com/api/v1/messages/about_topic/"+$topicID+".json"
$headers = @{ Authorization=("Bearer " + $developerToken) }

Function GetMessages($pageNo)
{
    # Invoke Web Request
    $webRequest = Invoke-WebRequest –Uri $uri –Method Get -Headers $headers

    # Check whether the status code is 200
    if ($webRequest.StatusCode -eq 200) {

        # Converts a JSON-formatted string to a custom object or a hash table.
        $results = $webRequest.Content | ConvertFrom-Json

        # Loop through all the messages
        $results.messages | ForEach-Object {
            $message = $_

            #Display the message ID and Created date
            write-host -ForegroundColor Green "Message ID: " $message.id " Created_at: " $message.created_at

        }

        # Check if there are more items available
        if($results.more_available)
        {
            GetUsers($pageNo+1)
        }
    }
    else {
        Write-Host -ForegroundColor Yellow "An error has occurred: " + $webRequest.StatusCode + " Description " + $webRequest.Status
    }
}

# Call the function
GetMessages(1)

Open PowerShell window and run the following command.

>cd "folderlocation>"

folderlocation – GetMessages.ps1 file location

Run the following command

>.\GetMessages.ps1

Thus in this blog, you saw how to get messages for a specific topic in Yammer using PowerShell.