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What is wrong with the following command? I am running curl.exe in powershell

PS C:\Users\manuchadha> curl.exe https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01 -H "Content-Type: application/json" -H "api-key: keygoeshere" -d '{"prompt": "tell me a funny story" }'
{
  "error": {
    "message": "Your request contained invalid JSON: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}
curl: (6) Could not resolve host: me
curl: (6) Could not resolve host: a
curl: (6) Could not resolve host: funny
curl: (3) unmatched close brace/bracket in URL position 7:
story }
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    The sad reality up to PowerShell 7.2.x is that an extra, manual layer of \-escaping of embedded " characters is required in arguments passed to external programs. This has been fixed in PowerShell 7.3,0 with selective exceptions on Windows. See the proposed duplicate for details. Commented Jun 1, 2023 at 11:54

2 Answers 2

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It's not clear to me exactly why this is happening (and I think it's probably a bug somewhere in the stack) but it seems to be a Powershell-specific thing, not a curl-specific thing. I wrote a little test program that looks like this:

using System;

namespace argvtest
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            int i = 0;
            foreach (var arg in args) {
                Console.WriteLine(i++ + ": " + arg);
            }
        }
    }
}

After that, I tried running your command as stated, but through my test program:

PS C:\Users\PervonZweigbergk\repos\argvtest\bin\Debug\netcoreapp3.0> .\argvtest.exe "https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01" "-H" "Content-Type: application/json" "-H" "api-key: keygoeshere" "-d" '{"prompt": "tell me a funny story" }'
Hello World!
0: https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01
1: -H
2: Content-Type: application/json
3: -H
4: api-key: keygoeshere
5: -d
6: {prompt: tell
7: me
8: a
9: funny
10: story }
PS C:\Users\PervonZweigbergk\repos\argvtest\bin\Debug\netcoreapp3.0>

As we can see, for some reason, what you're intending to have as a single argument (your JSON payload as the -d argument) at some point ends up being split into multiple arguments and the "'s removed.

A workaround to this seems to be to double the quotes:

PS C:\Users\PervonZweigbergk\repos\argvtest\bin\Debug\netcoreapp3.0> .\argvtest.exe "https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01" "-H" "Content-Type: application/json" "-H" "api-key: keygoeshere" "-d" '{""prompt"": ""tell me a funny story"" }'
Hello World!
0: https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01
1: -H
2: Content-Type: application/json
3: -H
4: api-key: keygoeshere
5: -d
6: {"prompt": "tell me a funny story" }
PS C:\Users\PervonZweigbergk\repos\argvtest\bin\Debug\netcoreapp3.0>

I'm sure there's an interesting reason as to why the command line handling seems "broken" like this, but I at least hope this helps answer your specific question.

Edit: This previous Stack Overflow answer may provide some insight: PowerShell stripping double quotes from command line arguments

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The sad reality up to PowerShell 7.2.x is that an extra, manual layer of \-escaping of embedded " characters is required in arguments passed to external programs. This has been fixed in PowerShell 7.3,0 with selective exceptions on Windows.
1

For completeness, escaping " helped -

curl.exe https://aoai-try-mc.openai.azure.com/openai/deployments/try-davinci/completions?api-version=2022-12-01 -H "Content-Type: application/json" -H "api-key: ea0456eef14d48cba8c0383ccfd124fe" -d '{ \"prompt\": \"tell me a funny story\" }'
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Yes, but please consider closing your question as a duplicate as proposed, because the linked post has important background information.

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