PowerShell -command from batch Invoke-RestMethod

Question

I've tried every combination I can think of, but the best I can come up with is an encoding issue. I know how to work around this by using -EncodedCommand or creating a small .ps1 script, but that's not what am looking for a couple of reasons.

So I hope, someone here knows what's going on here.

This works at PowerShell command prompt:

Invoke-RestMethod -Uri "http://127.0.0.1:8989/api/series" -Method Get -Header @{"X-Api-Key" = "1234"}

But when I try to pass it from command prompt or batch it fails!

powershell.exe -command "& {Invoke-RestMethod -Uri "http://127.0.0.1:8989/api/series" -Method Get -Header @{ "X-Api-Key" = "1234" } }"

powershell.exe -command "& Invoke-RestMethod -Uri "http://127.0.0.1:8989/api/series" -Method Get -Header @{ "X-Api-Key" = "1234" }"

powershell.exe -command Invoke-RestMethod -Uri http://127.0.0.1:8989/api/series -Method Get -Header @{ "X-Api-Key" = 1234 }

powershell.exe -command @{Invoke-RestMethod -Uri http://127.0.0.1:8989/api/series -Method Get -Header "X-Api-Key" = 1234 }

and many, many, many more combinations ;(

update 160614 removed all the error examples, not needed anymore.

Look at this.

user4003407
– user4003407

2016-06-13 19:07:24 +00:00
Commented Jun 13, 2016 at 19:07 — user4003407
– user4003407, Commented Jun 13, 2016 at 19:07

Guvante · Accepted Answer · 2016-06-13 23:46:35Z

2

You need to quote the entire thing and escape the quotes:

# If running within cmd
powershell.exe -command "& Invoke-RestMethod -Uri \"http://127.0.0.1:8989/api/series\" -Method Get -Header @{ \"X-Api-Key\" = \"1234\" }"

# If running within powershell
powershell.exe -command "& Invoke-RestMethod -Uri \`"http://127.0.0.1:8989/api/series\`" -Method Get -Header @{ \`"X-Api-Key\`" = \`"1234\`" }"

edited Jun 13, 2016 at 23:46

answered Jun 13, 2016 at 19:07

Guvante

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5 Comments

user4003407 Over a year ago

PowerShell.exe command line parser actually use backslash for escaping not backtick.

Guvante Over a year ago

@PetSerAl: Actually your shell escapes the quotes. Need to update. If you run within cmd.exe you need to use \

user4003407 Over a year ago

To run from PowerShell it need to be \`". PowerShell.exe command line parser need to see \ in the command line.

Guvante Over a year ago

@PetSerAl: powershell.exe somehow transforms powershell -command "& echo ``"Hello world``"" to hello\nworld being outputted (hello world over two lines). Updated the post as you described.

Blackkatt Over a year ago

Thank you so much! as soon as I say the "\" I remember I use that for findstr to search on multiply lines.

Joundill · Accepted Answer · 2021-01-05 21:25:27Z

0

For me I would do

powershell -Command "Invoke-Webrequest https://file.com -Outfile file.file" & cls
pause >nul

edited Jan 5, 2021 at 21:25

Joundill

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answered Jan 5, 2021 at 21:07

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