C#•2y ago

HTTP Post query

I am currently learning the post query using HTTP from the https://ptsv2.com page. My question is whether what I get in my textbox makes sense as far as it goes, or whether I've just written garbage after all. so, this was the code

            try
            {
                using (var client = new HttpClient())
                {
                    var urlString = new Uri("https://ptsv2.com");
                    var newToilet = new HeadersMain();
                    var newToiletJson = JsonConvert.SerializeObject(newToilet);
                    var load = new StringContent(newToiletJson, Encoding.UTF8, "application/json");
                    var result = client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result;
                    richTextBox1.Text = result.ToString();
                }
            }

            try
            {
                using (var client = new HttpClient())
                {
                    var urlString = new Uri("https://ptsv2.com");
                    var newToilet = new HeadersMain();
                    var newToiletJson = JsonConvert.SerializeObject(newToilet);
                    var load = new StringContent(newToiletJson, Encoding.UTF8, "application/json");
                    var result = client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result;
                    richTextBox1.Text = result.ToString();
                }
            }

16 Replies

Steff•2y ago

and this is the HeadersMain:

        public class HeadersMain
        {
            public string[] Accept { get; set; }
            public string[] ContentLength { get; set; }
            public string[] ContentType { get; set; }
            public string[] Forwarded { get; set; }
            public string[] Traceparent { get; set; }
            public string[] UserAgent { get; set; }
            public string[] XCloudTraceContext { get; set; }
            public string[] XForwardedFor { get; set; }
            public string[] XForwardedProto { get; set; }
            public string[] XGoogleAppsMetadata { get; set; }
            public string[] XGoogleServerlessNodeEnvoyNopod { get; set; }
        }

        public class HeadersMain
        {
            public string[] Accept { get; set; }
            public string[] ContentLength { get; set; }
            public string[] ContentType { get; set; }
            public string[] Forwarded { get; set; }
            public string[] Traceparent { get; set; }
            public string[] UserAgent { get; set; }
            public string[] XCloudTraceContext { get; set; }
            public string[] XForwardedFor { get; set; }
            public string[] XForwardedProto { get; set; }
            public string[] XGoogleAppsMetadata { get; set; }
            public string[] XGoogleServerlessNodeEnvoyNopod { get; set; }
        }

Cisien•2y ago

you're just dumping the response, you're not going to get much interesting from that. You need to read the body to see what the response data was await request.Content.ReadAsStringAsync()

Steff•2y ago

oh, and more not?

Cisien•2y ago

what?

Steff•2y ago

So, when I compare the input from the program with the input from the page, the same thing comes out. (I'm really new to this, that's why I get such stupid statements).

undisputed world champions•2y ago

rn you are just outputting the header data of the response (result.ToString()) which looks good because it says "StatusCode: 200, ReasonPhrase: 'OK'" but it also says "Content-Type: text/plain" and "Content-Length: 41", which means the response also has a 41 bytes long-plain text content you can get the string out of the content by calling await request.Content.ReadAsStringAsync() (as Cisien pointed out) and output it too, to see what it says

Steff•2y ago

Yeah, I already did that.

                    var result = client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result.Content.ReadAsStringAsync().Result;

                    var result = client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result.Content.ReadAsStringAsync().Result;

undisputed world champions•2y ago

ok, but you shouldnt just call .Result on Tasks properly await them 😉 $async

MODiX•2y ago

For an introduction to async and await in C#, https://blog.stephencleary.com/2012/02/async-and-await.html

Async and Await

Most people have already heard about the new “async” and “await” functionality coming in Visual Studio 11. This is Yet Another Introductory Post.

Steff•2y ago

oh Wait

Cisien•2y ago

no, await 🙂

Steff•2y ago

yes, await so?

                    var result = await client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result.Content.ReadAsStringAsync();

                    var result = await client.PostAsync("https://ptsv2.com/t/" + textBox1.Text + "/post", load).Result.Content.ReadAsStringAsync();

Cisien•2y ago

don't chain those you're still calling Result on the Post var result = await client.PostAsync(...); var body = await result.Content.ReadAsStringAsync();

Steff•2y ago

Thanks ! ❤️

undisputed world champions•2y ago

probably wanna check result.StatusCode before you read the body, too 😉 or call result.EnsureSucessStatusCode(), it will throw an exception, if the StatusCode does not indicate success 😉

Steff•2y ago

oh, thanks 🙂

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