Hitachi Ops Center​

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 I'm trying to query the API of our Opscenter machine (for an F370).Would like to do this from Powershell.

  • Hitachi Ops Center
  • Hitachi Ops Center
Hans Lammerts's profile image
Hans Lammerts posted 11-12-2020 16:26

I was able to get a session token using the PS

Invoke-RestMethod command, but I can't seem to find how I can query the API using this session token from Powershell using a next Invoke-RestMethod command.

What would be the right syntax for the header that contains the token ?

Something like "Authorization:Session <long_token>" ? (which is not correct....😕 )


#HitachiOpsCenter
William Jansen Van Nieuwenhuizen's profile image
William Jansen Van Nieuwenhuizen posted 11-13-2020 15:18

Hello

 

Yes, it's very easy. Copy and Paste from the web browser. Below a little video to show you how it's done:

https://youtu.be/a4CCpywCbiU

 

If you want to see more, feel free to reach out to the Centre of Excellence, Link in my BIO.

Hans Lammerts's profile image
Hans Lammerts posted 11-16-2020 15:58

Hi William,

 

Thank you for your answer.

probably things have changed since you made the video. I cannot get the same results, in fact, all I get is Powershell presenting me with an error...

 

When I login to the Administrator GUI as sysadmin, I do see the two first lines in the network view are tokens .

The content of the first one, however, is different from what you get back.

First tokens line copied as Powershell shows this:

 

Invoke-WebRequest -Uri "https://plops300.vlkintern.nl:20961/v1/security/tokens" `>> -Method "POST" `>> -Headers @{>> "Accept"="application/json, text/plain, */*";>> "Origin"="https://plops300.vlkintern.nl:20961";>> "Authorization"="Basic c3lzYWRtaW46c3lzYWRtaW4=";>> "Sec-Fetch-Dest"="empty";>> "User-Agent"="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36";>> "Sec-Fetch-Site"="same-origin";>> "Sec-Fetch-Mode"="cors";>> "Referer"="https://plops300.vlkintern.nl:20961/";>> "Accept-Encoding"="gzip, deflate, br";>> "Accept-Language"="en-US,en;q=0.9">> } `>> -ContentType "application/json;charset=UTF-8" `>> -Body "[]"

Running this in Powershell just gives me :

Invoke-WebRequest : The underlying connection was closed: An unexpected error occurred on a send.At line:1 char:1+ Invoke-WebRequest -Uri "https://plops300.vlkintern.nl:20961/v1/securi ...+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebExc eption + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

(Note: the line break between lines 5 and 6 come from copy/paste action. This is not what I see when I do the PS call).

 

The second tokens line does contain the token returned, but here again: the copy as Powershell does not look the same as your snippet. And also fail when I run it in PS, same error.

 

Could you please enlighten me how I should tackle this situation ?

What info do you need from me so you can point me in the right direction ?

 

Thanks,

Hans

William Jansen Van Nieuwenhuizen's profile image
William Jansen Van Nieuwenhuizen posted 11-16-2020 16:43

Hello

You missed a step from the video, unless you don't have a self-signed cert. You need to skip the certificate check.

Also, I was using PowerShell Core, not sure if you did this via normal PowerShell. They have a different method for allowing self signed certs.

Hans Lammerts's profile image
Hans Lammerts posted 11-16-2020 17:18

Hi,

 

I did this with PS, not PS Core.

I'll try PS Core first....

 

However, the content of what I copy from the first tokens line in the network view differs substantially from what you show in your video. This is what you used in PS Core, right ? No sneaky editing in between before you show it on the video ?

😎

William Jansen Van Nieuwenhuizen's profile image
William Jansen Van Nieuwenhuizen posted 11-16-2020 20:00

 

You can see the time and date in the botton right corner(made the video the same date). Pretty sure I did it in one take. So no, no sneaky editing.

 

If you want to use powershell default you can lookup how to disable self signed certificate check. I remember its a bit iffy and only for the current session. Give powershell core a go.

 

Also be sure that you login to administrator url and not ops center. Ill post a copy of my code tomorrow, so that you can give it a try too.

 

Ps, are you in the Netherlands?

Brent Lund's profile image
Brent Lund posted 01-13-2021 19:19

Been a few months, not sure if you got your answer?

 

I've done the same with Python. What I suggest is using a RESTapi 'browser' such as Insomnia. This lets you verify your API calls. Then you just need to translate them to PowerShell.

 

I did the same, but to Python. Having Insomnia to verify my POST or GET was formatted correctly took Python out of the equation.

 

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