In blazor C#, httpclient.getjsonasync() method is not found

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<pre lang="c#">

HttpClient httpClient;

forecasts = await httpClient.GetJsonAsync<T>(uri);

error: HttpClient.GetJsonAsync() method is not found

I don't know why VS 2019 giving this error.

What I have tried:

I've updated System.Net.Http library through nuget package.

Posted 13-Oct-19 22:24pm

Asif Rehman

Updated 22-Aug-20 4:36am

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Richard Deeming 14-Oct-19 14:37pm

Is this client-side Blazor, or server-side Blazor?

Have you added a package reference to Microsoft.AspNetCore.Blazor.HttpClient, as described in the docs[^]?

Asif Rehman 16-Oct-19 2:16am

It is server-side blazor.

I've searched from nuget packages. I've not found that package.

Richard Deeming 16-Oct-19 13:47pm

You'll need to tick the "Include pre-release" option in the NuGet package manager, because the package hasn't been fully released yet:
NuGet Gallery | Microsoft.AspNetCore.Blazor.HttpClient 3.1.0-preview1.19508.20[^]

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rineshpk · Answer 1 · 2020-08-22T04:36:00

Solution 3

It's required to add

using Microsoft.AspNetCore.Components

namespace in order for this extension method to appear.

Posted 22-Aug-20 4:36am

rineshpk

Asif Rehman · Answer 2 · 2019-10-15T05:16:00

Solution 1

It is server-side blazor.

I've searched from nuget packages. I've not found that package.

Posted 15-Oct-19 5:16am

Asif Rehman

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Richard MacCutchan 15-Oct-19 12:09pm

This is not a Solution. Please use the Reply button to reply to someone else's comments or questions.

Sammi Ullah · Answer 3 · 2020-01-21T06:55:00

Solution 2

I have installed the package by adding the latest package ref.

<PackageReference Include="Microsoft.AspNetCore.Blazor.HttpClient" Version="3.1.0-preview4.19579.2" />

But still i am unable to find the desired function like .. HttpClient.GetJsonAsync

Posted 21-Jan-20 6:55am

Sammi Ullah