C#•4mo ago

Body request

hey there, I'm trying to get the body with this method

public async Task<string?> ReadRequestBodyAsync(HttpRequest request)
{
    request.EnableBuffering();

    if (request.Body == null)
    {
        throw new ArgumentNullException(nameof(request.Body), "Request body is null.");
    }

    using (var reader = new StreamReader(request.Body, Encoding.UTF8, leaveOpen: true))
    {
        var body = await reader.ReadToEndAsync();
        return body;
    }
    

}

public async Task<string?> ReadRequestBodyAsync(HttpRequest request)
{
    request.EnableBuffering();

    if (request.Body == null)
    {
        throw new ArgumentNullException(nameof(request.Body), "Request body is null.");
    }

    using (var reader = new StreamReader(request.Body, Encoding.UTF8, leaveOpen: true))
    {
        var body = await reader.ReadToEndAsync();
        return body;
    }
    

}

but when i will go to see the parameters, don't contain the body and I'm using HttpRequest to do this, exist another way to do this?

12 Replies

Angius•4mo ago

What ASP version? Can't remember the last time I had to rawdog a request like that instead of using parameter binding

MatheusOP•4mo ago

And how works parameter bind? Im a new developer with c# The entire context is authentication with HMAC Idk but I will see for you But my .net version is 8, idk if is the same thing

Angius•4mo ago

Example of parameter binding

[HttpPost]
public async Task<Ok> CreateThing(ThingDto thing)
{
    context.Things.Add(new Thing {
        Name = thing.Name,
        Number = thing.Number,
        Unga = thing.Unga,
    });
    await context.SaveChangesAsync();
}

[HttpPost]
public async Task<Ok> CreateThing(ThingDto thing)
{
    context.Things.Add(new Thing {
        Name = thing.Name,
        Number = thing.Number,
        Unga = thing.Unga,
    });
    await context.SaveChangesAsync();
}

public sealed class ThingDto
{
    public required string Name { get; init; }
    public required int Number { get; init; }
    public required bool Unga { get; init; }
}

public sealed class ThingDto
{
    public required string Name { get; init; }
    public required int Number { get; init; }
    public required bool Unga { get; init; }
}

// request body
{
    "Name": "Thingamajig",
    "Number": 82,
    "Unga": true
}

// request body
{
    "Name": "Thingamajig",
    "Number": 82,
    "Unga": true
}

.NET 8 is the most recent one So there should be zero issues using plain ol' parameter binding instead of whatever it is you're trying to do

MatheusOP•4mo ago

I will try to do this, ty

The Fog from Human Resources•4mo ago

doesnt this require a [FromBody]? :lurk:

Angius•4mo ago

If you want to be explicit, yeah. But for a post method the default binding is from body.

The Fog from Human Resources•4mo ago

How can I read the path, body and possible url parameters :thinker: Like all in 1 function Is there an attribute for url params?

Angius•4mo ago

Well, the path is what you say it's gonna be Url params can be a part of the path and either bound with [FromParams] or just left loose

The Fog from Human Resources•4mo ago

:soPortuguese: I love ASP.NET

Angius•4mo ago

Query string params you can bind with [From Query], which is also a default binding for anything that's unbound

[HttpPost("make-thing/{id:int}"]
public async Task<Ok> MakeThing(BodyData data, int id, string bunga)

[HttpPost("make-thing/{id:int}"]
public async Task<Ok> MakeThing(BodyData data, int id, string bunga)

POST /make-thing/69?bunga=scunga
{
    "name": "foo",
    "count": 54
}

POST /make-thing/69?bunga=scunga
{
    "name": "foo",
    "count": 54
}

The Fog from Human Resources•4mo ago

Types on path Didn't know that worked

Angius•4mo ago

You get your data in the data the id param has the value of 69, and the bunga has the value of "scunga" Not entirely intuitive, alas. For example, there's no string, just alpha for example.

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Body request