Hitachi Ops Center​

Hi Jonathan,

Last year I posted some demo RestAPI code (python ) to the Flash Storage community.

Title:  

Test Drive of Hitachi Platform (PF) RestAPI ( example scripts attached )

The goal of this was to produce a light weight tool to do basic ( but flexible ) storage provisioning.

It work well .  I really like the RestAPI  .    For you use case you will want to:

• read the notes / readme files
• You will use the base module ( to authenticate ... etc )
• create your own mission specific mini-modules that utilize the base module
  use my mini-modules as a reference
  
  
• most of my output is to a log file ( my mission was more provisioning than reporting ); but , you don't need to limit
  yourself to that ..
  
  have fun ... and get stuff done

Andy 

Hello Jonathan

You need to get a session token first if you're using PFRest.

The first end point you have needs no session token, that's why it's working:
https://docs.hitachivantara.com/r/en-us/virtual-storage-platform-5100/93-07-2x/mk-98rd9014/common-operations-in-the-rest-api/getting-a-list-of-storage-systems

However getting ldev information requires a session token. I'm no Powershell guru however here is how I believe you'll get it:

You'll need a session token:

https://docs.hitachivantara.com/r/en-us/virtual-storage-platform-5100/93-07-2x/mk-98rd9014/common-operations-in-the-rest-api/generating-sessions 

$username = "maintenance"
$password = ConvertTo-SecureString "raid-maintenance" -AsPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential($username, $password)
$headers = @{
    "Accept" = "application/json"
}
$response = Invoke-RestMethod -Uri "https://10.0.0.1/ConfigurationManager/v1/objects/sessions/" `
    -Method Post `
    -Credential $credential `
    -Authentication Basic `
    -Headers $headers `
    -ContentType "application/json" `
    -Body "" `
    -SkipCertificateCheck

After than you'll have to update your LDEV query with the token when you get the ldevs(I'm just substituting it here free hand, hope my syntax is correct):

$body = @{
    "headLdevId" = "0"
    "count" = "1000"
}
$headers = @{
    "Accept" = "application/json"
    "Authorization" = "Session $response.token"
}
$response = Invoke-RestMethod -Uri "https://10.0.0.1/ConfigurationManager/v1/objects/ldevs" `
    -Body $body `
    -Headers $headers `
    -ContentType "application/json" `
    -SkipCertificateCheck

To make life easier for you,  I have attached a simpler RestAPI demo to this thread

NOTE:

Do all test and dev work in a safe non-critical environment.
The notes below and the attached code may not be perfect.  Do NOT cavalierly treat
them like a fully tested document / product .... they are for instructional purposes only

[] Create a directory to store and test demo scripts
   c:\demos

   # note: annoying features of new Windows versions may
   # make it difficult for you to create directories ( outside of your profile )
   # I'll assume that you know how to deal with all of these silly msoft annoyances

[] Copy the attached zip file to the  directory you created

[] extract the contents of the zip file 

   You should end up with this directory:

   c:\demos\RestDemo

   In the RestDemo directory there should be:
     - several files
     - a logs sub-directory

[] Run the CMD_Shell bat file 
   ( this opens a Windows shell prompt in the current directory )

[] From the cmd shell prompt, run the script using python 3.x ( latest version )

   # note: annoying features of new Fisher-Price Windows versions may
   # make it difficult for you to run scripts ... 
   # I'll assume that you know how to deal with all of these silly msoft annoyances

   I have both python 2 and python 3 on my workstation, so I use the py launcher
   to specify python 3

   py -3 DpLdevMgr.py

   When run directly from the command line, the module's built-in test main
   function is called.

   I stripped all lines from the test main that modify array elements.
   Only the call to a function that lists DP LDEVs remains.

   Output is to a file in the logs directory.

   For nice reporting you will want to use the response_py element of the
   tuple returned by oDpLdevMgr.ListDpLdevs().  The data structure
   referenced by response_py is in python "format" ( ie. list of dictionaries ...etc. )
   and is easy to deal with.

Andy