What is the .net5 replacement for 'await response.Content.ReadAsAsync<ReCAPTCHAVerificationResponse>()'

user_11227 0
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https://github.com/sample-by-jsakamoto/Blazor-UseGoogleReCAPTCHA is a sample implementation of reCaptcha V2 for Blazor. It contains a class named SampleApi which in turn contains the following line that fails to compile: var verificationResponse = await response.Content.ReadAsAsync<ReCAPTCHAVerificationResponse>();

Somewhere I found the suggestion to use: var verificationResponse = await JsonSerializer.DeserializeAsync<ReCAPTCHAVerificationResponse>(await response.Content.ReadAsStreamAsync()); but it did not work. It compiled but did not provide a usable verificationResponse.

I got it to work by installing Microsoft.AspNet.WebApi.Client, but it is deprecated. Seems like there must be a better way.

blazor-server-side asp.net-core recaptcha c#
1 Answers

If you're using Newtonsoft.Json, you're looking for something like

var content = await response.Content.ReadAsStreamAsync();
var response = JsonConvert.DeserializeObject<ReCAPTCHAVerificationResponse>(content);

If you're using System.Text.Json (Microsoft's flavor and recommended by them over Newtonsoft.Json for the most part)

var response = response.Content.ReadAsAsync<ReCAPTCHAVerificationResponse>();

However, this is not unique to Blazor nor .NET 5.

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