CODEWITHSUNDEEP
c#.net
James Jeffery
James Jeffery

Reputation: 12599

How to add ampersand (&) at the end of HttpContent

One of the websites I'm sending a Post request has a single ampersand (&) at the end of the Post Data thats sent with the Post request.

How to I append an & to the end of the Post Data when using HttpContent?

Here's an example of the code:

List<KeyValuePair<string, string>> postData = new List<KeyValuePair<string, string>>();
postData.Add(new KeyValuePair<string, string>("user", userid));
postData.Add(new KeyValuePair<string, string>("password", password));

HttpContent content = new FormUrlEncodedContent(postData);

HttpResponseMessage responseMessage = await client.PostAsync("https://www.site.com/login", content);

The Post Data sent needs to look like:

username=324234&password=12345&

It's odd there is an & at the end of the request, but without it the request fails.

Please note, this is NOT an & at the end of the 'password' field. If I was to add that, it would encode the &. The & is sent with every request regardless of the password used.

Any ideas?

Upvotes: 1

Views: 530

Answers (1)

Thomas Levesque
Thomas Levesque

Reputation: 292615

FormUrlEncodedContent doesn't support this, but you can always add the final '&' yourself and send the result as a StringContent:

HttpContent content = await new FormUrlEncodedContent(postData)
                                .WithFinalAmpersandAsync();

...

static class HttpContentExtensions
{
    public static async Task<HttpContent> WithFinalAmpersandAsync(
        this FormUrlEncodedContent formUrlEncodedContent)
    {
        string content = await formUrlEncodedContent.ReadAsStringAsync();
        return new StringContent(content + "&");
    }
}

Upvotes: 1

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