Working powershell script sample for (remote disable nodes/pools)?

Joel Newton has written a powershell module:

https://devcentral.f5.com/codeshare/powershell-module-for-the-f5-ltm-rest-api

Or, if you want to do it with Pure rest I've got a guide here on how to authenticate against the F5 using Powershell:

https://loadbalancing.se/2017/05/10/using-f5-rest-api-with-roles/

Working script to disable a member and node:

$User = "admin"
$Password = "admin"

$f5 = "yourf5.domain.local"

Create the string that is converted to Base64
$pair = $user + ":" + $Password

Encode the string to base64
$encodedCreds = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($pair))

Add the "Basic prefix"
$basicAuthValue = "Basic $encodedCreds"

Prepare the headers
$headers = @{
    "Authorization" = $basicAuthValue
    "Content-Type" = "application/json"
}

Create the body of the post
$body = @{"username" = $User; "password" = $Password; "loginProviderName" = "tmos" }

Convert the body to Json
$body = $Body | ConvertTo-Json

$response  = Invoke-WebRequest -Method "POST" -Headers $headers -Body $body -Uri "https://$f5/mgmt/shared/authn/login" 

Extract the token from the response
$token = ($response.content | ConvertFrom-Json).Token.token

Prepare a dictionary with the token
$headers = @{
    "X-F5-Auth-Token" = $token;
    "content-type" = "application/json";
}

Create the body of the post
$body = @{"state" = "user-down"; "session" = "user-disabled"; }

Convert the body to Json
$body = $Body | ConvertTo-Json

Disable member
$response  = Invoke-WebRequest -Method "PUT" -Headers $headers -Body $body -Uri "https://$f5/mgmt/tm/ltm/pool/jira.domain.local-8080_pool/members/~Common~server.domain.local:8080/"

Disable node
$response  = Invoke-WebRequest -Method "PUT" -Headers $headers -Body $body -Uri "https://$f5/mgmt/tm/ltm/node/~Common~server.domain.local/"

/Patrik