CODEWITHSUNDEEP
stringpowershellcompareinvokewebrequest
DaniKR
DaniKR

Reputation: 2448

In PowerShell how to compare Invoke-WebRequest content to a string

In my web page I create simple php script that on browser displays only my IP address as simple text in web page.

So if I use this command in PowerShell:

$ip = Invoke-WebRequest https://www.mypage.com
$ip

I get this result:

PS C:\Users\user> $ip
193.60.50.55

If I check what kind of variable is with: GetType().FullName I get:

PS C:\Users\user> $ip.GetType().FullName
System.String

And If I try to compare it with same string

PS C:\Users\user> $ip = Invoke-WebRequest https://www.mypage.com
$ip2 = "193.60.50.55"
$ip -eq $ip2

I get result "False", I also try with -match and -like but result is always false

Any Idea what is wrong

Upvotes: 3

Views: 6631

Answers (2)

Supawat Pusavanno
Supawat Pusavanno

Reputation: 3356

This is an alternative from PowerShell 7.4.4

$ip = Invoke-WebRequest "https://checkip.amazonaws.com/" | Select-Object -ExpandProperty Content

Example

Note there is a new-line at the tail of the content.

PS C:\Users\tong> $ip = Invoke-WebRequest "https://checkip.amazonaws.com/" | Select-Object -ExpandProperty Content
PS C:\Users\tong> $ip.StartsWith("11.11.11.11")
True
PS C:\Users\tong> """$ip"""
"11.11.11.11
"

Upvotes: 0

beatcracker
beatcracker

Reputation: 6920

As Mike Garuccio points Invoke-WebRequest returns object. You're seeing string because you've probably somehow triggered silent type conversion (using quotes, or having $ip declared as [string] before).

Example:

$ip = Invoke-WebRequest -Uri http://icanhazip.com/ -UseBasicParsing
"$ip"

1.2.3.4

-- or --

[string]$ip = ''
$ip = Invoke-WebRequest -Uri http://icanhazip.com/ -UseBasicParsing
$ip

1.2.3.4

This is what you should do:

# Get responce content as string
$ip = (Invoke-WebRequest -Uri http://icanhazip.com/ -UseBasicParsing).Content

# Trim newlines and compare
$ip.Trim() -eq '1.2.3.4'

One-liner:

(Invoke-WebRequest -Uri http://icanhazip.com/ -UseBasicParsing).Content.Trim() -eq '1.2.3.4'

Upvotes: 5

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