Sending image as multipart post request

[Matias-Barrios]

I am having a small issue where the image im sending from postman is not populated into my model when using BindAndValidate method.

Here is my model :

public class Photo {
     public string date {get; set;}
     public byte[] image {get; set;} 
}

And here is my actual call :

curl -k -X POST \
 http://localhost:8888/upload \
 -H 'Content-Type: multipart/form-data' \
 -H 'cache-control: no-cache' \
 -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \
 -F 'image=@\\LAPTOP\USERDAT01\MATIAS\Desktop\image.jpg' \
 -F date=2019-10-16

The problem im facing is that although date field on my model is actually getting populated the image property is always null.

This is my module code :

var request = req.BindAndValidate<Photo>();
uploadPhoto(request.data.date, request.data.image)

What am I doing wrong?

[jchannon]

Nothing I’m not sure we have that scenario supported.

We do have a BindFile APIs that you could look at.

You would need to call that and Bind to get your Date field populated

On Wed, 16 Oct 2019 at 19:09, Matias.Barrios notifications@github.com wrote:

I am having a small issue where the image im sending from postman is not populated into my model when using BindAndValidate method.

Here is my model :

public class Photo { public string date {get; set;} public byte[] image {get; set;} }

And here is my actual call :

curl -k -X POST \ http://localhost:8888/upload \ -H 'Content-Type: multipart/form-data' \ -H 'cache-control: no-cache' \ -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \ -F 'image=@\LAPTOP\USERDAT01\MATIAS\Desktop\image.jpg' \ -F date=2019-10-16

The problem im facing is that although date field on my model is actually getting populated the image property is always null.

This is my module code :

var request = req.BindAndValidate();uploadPhoto(request.data.date, request.data.image)

What am I doing wrong?

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[Matias-Barrios]

Thanks so much for your comment, it helped me to get this. I used BindFile to get the actual image and BindAndValidate for the body.

var request = req.BindAndValidate<Photo>();
using (StreamReader reader = new StreamReader(req.BindFile().Result.OpenReadStream()))
{
      request.Data.image = Encoding.ASCII.GetBytes(reader.ReadToEnd());
 }

Thanks!

[jchannon]

Would recommend making your route handler async to avoid the .Result :)