How to pass GET parameters of gateway endpoint to POST backend method as body application/x-www-form-urlencoded?

[ernoli]

Hello

I am sorry I am writing right here, I just can't find much of community resources for Ocelot save from some stackoverflow

So here's question

My target API backend methods expects parameters to be passed in body as content-type of application/x-www-form-urlencoded

So, basically I need to transform my GET request to my gateway endpoint /gw/test/?param1={param1}&param={param2} to POST backend request to endpoint /api/test with parameters sent as body

param1={param1}&param2={param2}

and I just can't figure out is it even possible with Ocelot right now?

[garybond]

I've had to do the same thing recently to take a GET request with parameters and assemble some json to be POSTed to the back-end service,
I ended up using the DelegatingHandler.

This should get you off in the right direction...

public class ConvertGetToPostHandler : DelegatingHandler
{
    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        //do stuff to get/validate your querystring parameters, e.g.
        var yourFormData = request.RequestUri.Query.TrimStart('?');

        request.Content = new StringContent(yourFormData, Encoding.UTF8, "application/x-www-form-urlencoded");
        request.Method = HttpMethod.Post;

        return await base.SendAsync(request, cancellationToken);
    }
}

Of course, I'd be happy to get another opinion...

[raman-m]

@ernoli What about this solution?