Call Rest API inside powershell function

Question

I have called Rest API using powershell function but i need to get date entry from all objects like english-and-wales, scotland , northern ireland. using this $list.'england-and-wales'.events.date i will get only england-and-wales details but remaining scotland, northern ireland date i am unable to fetch

function Get-Holiday {
  Invoke-RestMethod -Method Get -Uri https://www.gov.uk/bank-holidays.json

}
$list = Get-Holiday
$list | ConvertTo-Json -Depth 3
$list.'england-and-wales'.events.date

I need to get date entry from all england-and-wales, scotland, northern ireland. can you please provide solution for that

Example image

Answer 1

If you want to combine the dates from all three data sets, you could do something like this:

# define divisions
$divisions = 'england-and-wales', 'scotland', 'northern-ireland'

# fetch data 
$list = Invoke-RestMethod -Method Get -Uri https://www.gov.uk/bank-holidays.json

# enumerate dates for all divisions, remove duplicates and assign to a variable
$allPossibleHolidayDates = $divisions |%{ $list.$_.events.date} |Sort -Unique

At which point you can determine whether a certain date is a holiday by:

# Get a string representing todays date formatted like "2020-11-18"
$todaysDate = Get-Date -Format 'yyyy-MM-dd'

# this will now return $true if today is a holiday in any of the divisions
$allPossibleHolidayDates -contains $todaysDate