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PowerShell Scripting to Replicate LinkedIn Data to MySQL

Write a simple PowerShell script to replicate LinkedIn data to a MySQL database.

The CData Cmdlets for LinkedIn offer live access to LinkedIn data from within PowerShell. Using PowerShell scripts, you can easily automate regular tasks like data replication. This article will walk through using the CData Cmdlets for LinkedIn and the CData Cmdlets for MySQL in PowerShell to replicate LinkedIn data to a MySQL database.

After obtaining the needed connection properties, accessing LinkedIn data in PowerShell and preparing for replication consists of four basic steps.

LinkedIn uses the OAuth 2 authentication standard. You will need to obtain the OAuthClientId and OAuthClientSecret by registering an app with LinkedIn. For more information refer to our authentication guide.

Collecting LinkedIn Data

  1. Install the module:

    Install-Module LinkedInCmdlets
  2. Connect to LinkedIn:

    $linkedin = Connect-LinkedIn -OAuthClientId $OAuthClientId -OAuthClientSecret $OAuthClientSecret -CallbackURL $CallbackURL -CompanyId $CompanyId
  3. Retrieve the data from a specific resource:

    $data = Select-LinkedIn -Connection $linkedin -Table "CompanyStatusUpdates"

    You can also use the Invoke-LinkedIn cmdlet to execute pure SQL-92 statements:

    $data = Invoke-LinkedIn -Connection $linkedin -Query 'SELECT * FROM CompanyStatusUpdates WHERE EntityId = @EntityId' -Params @{'@EntityId'='238'}
  4. Save a list of the column names from the returned data.

    $columns = ($data | Get-Member -MemberType NoteProperty | Select-Object -Property Name).Name

Inserting LinkedIn Data into the MySQL Database

With the data and column names collected, you are ready to replicate the data into a MySQL database.

  1. Install the module:

    Install-Module MySQLCmdlets
  2. Connect to MySQL, using the server address and port of the MySQL server, valid user credentials, and a specific database with the table in which the data will be replicated:

    $mysql = Connect-MySQL -User $User -Password $Password -Database $Database -Server $Server -Port $Port
  3. Loop through the LinkedIn data, store the values, and use the Add-MySQL cmdlet to insert the data into the MySQL database, one row at a time. In this example, the table will need to have the same name as the LinkedIn resource (CompanyStatusUpdates) and to exist in the database.

    $data | % { $row = $_ $values = @() $columns | % { $col = $_ $values += $row.$($col) } Add-MySQL -Connection $mysql -Table "CompanyStatusUpdates" -Columns $columns -Values $values }

You have now replicated your LinkedIn data to a MySQL database. This gives you freedom to work with LinkedIn data in the same way that you work with other MySQL tables, whether that is performing analytics, building reports, or other business functions.

Notes

  • Once you have connected to LinkedIn and MySQL in PowerShell, you can pipe command results to perform the replication in a single line:

    Select-LinkedIn -Connection $linkedin -Table "CompanyStatusUpdates" | % { $row = $_ $values = @() $columns | % { $col = $_ $values += $row.$($col) } Add-MySQL -Connection $mysql -Table "CompanyStatusUpdates" -Columns $columns -Values $values }
  • If you wish to replicate the LinkedIn data to another database using another PowerShell module, you will want to exclude the Columns, Connection, and Table columns from the data returned by the Select-LinkedIn cmdlet since those columns are used to help pipe data from one CData cmdlet to another:

    $columns = ($data | Get-Member -MemberType NoteProperty | Select-Object -Property Name).Name | ? {$_ -NotIn @('Columns','Connection','Table')}