通过 Asp.NET Core 6 中的 Ok() 获取确切的字符串返回

Question

I have RESTful API that returns some large JSON files. I want to save the content to a file before sending it to the client. Here's my endpoint now:

[HttpPost]
[Route("rest/result")]
public IActionResult GetResult(string requestId)
{
    var item = _service.GetItem(requestId);
    return item?.Result == null ? NotFound() : Ok(item.Result);
}

I tried this code:

[HttpPost]
[Route("rest/result")]
public async Task<IActionResult> GetResult(string requestId)
{
    var item = _service.GetItem(requestId);
    var str = JsonSerializer.Serialize(item.Result);
    await File.WriteAllTextAsync($"c:\\output\\{requestId}.json", str);
    return item?.Result == null ? NotFound() : Ok(item.Result);
}

But the file is a bit different. Probably in terms of encoding because I'm seeing things such as: "Data":"{'FnId':'10000149' in the file.

Answer 1

That shouldn't be any problem, as both representations are equivalent.

' is Unicode for apostrophe ('). So, special characters are returned in Unicode but will show up properly when rendered on the page:

"Data":"{'FnId':'10000149'}"