# Blazor

Published articles for Blazor.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## Build an interview coach app with the GitHub Copilot SDK

DevFeed: [Build an interview coach app with the GitHub Copilot SDK](<https://devfeed.tech/articles/build-an-interview-coach-app-with-the-github-copilot-sdk-26983.md>)

Original publisher: [Read original article](<https://devblogs.microsoft.com/blog/build-an-interview-coach-app-with-the-github-copilot-sdk/>)

Author: Justin Yoo

Published: 2026-09-15T16:00:11Z

Content type: tutorial

Language: en

Sources: [Developer Blogs](<https://devfeed.tech/sources/developer-blogs.md>)

Topics: [GitHub Copilot](<https://devfeed.tech/topics/github-copilot.md>), [SDK](<https://devfeed.tech/topics/sdk.md>), [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>), [.NET](<https://devfeed.tech/topics/net.md>), [Blazor](<https://devfeed.tech/topics/blazor.md>)

Tags: [agent-framework](<https://devfeed.tech/tags/agent-framework.md>), [ai](<https://devfeed.tech/tags/ai.md>), [blazor](<https://devfeed.tech/tags/blazor.md>), [github-copilot](<https://devfeed.tech/tags/github-copilot.md>), [github-copilot-sdk](<https://devfeed.tech/tags/github-copilot-sdk.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [microsoft-agent-framework](<https://devfeed.tech/tags/microsoft-agent-framework.md>), [microsoft-foundry](<https://devfeed.tech/tags/microsoft-foundry.md>), [model-context-protocol](<https://devfeed.tech/tags/model-context-protocol.md>), [net](<https://devfeed.tech/tags/net.md>), [sdk](<https://devfeed.tech/tags/sdk.md>)

### AI overview

This tutorial demonstrates how to build an interview coach application with the GitHub Copilot SDK in .NET. The sample uses a Blazor chat interface, Copilot instructions and callable tools, and Model Context Protocol services for document handling and interview records. It emphasizes giving Copilot application-specific tools rather than access to shell commands or source files.

### Source excerpt

An interview coach has to do more than ask questions. It needs to read a resume, follow up on an incomplete answer, and save enough context to give useful feedback at the end. Some of that work is conversation. Some of it requires calling an application service. The GitHub Copilot SDK lets you use the [...] The post Build an interview coach app with the GitHub Copilot SDK appeared first on Microsoft for Developers.

## Use C# unions and closed hierarchies in ASP.NET Core

DevFeed: [Use C# unions and closed hierarchies in ASP.NET Core](<https://devfeed.tech/articles/use-c-unions-and-closed-hierarchies-in-asp-net-core-2954.md>)

Original publisher: [Read original article](<https://devblogs.microsoft.com/dotnet/unions-and-closed-hierarchies-in-aspnetcore/>)

Author: Dmitrii Korolev

Published: 2026-09-10T17:00:00Z

Content type: tutorial

Language: en

Sources: [.NET Blog](<https://devfeed.tech/sources/net-blog.md>)

Topics: [C# 15](<https://devfeed.tech/topics/c-sharp-15.md>), [ASP.NET Core](<https://devfeed.tech/topics/asp-net-core.md>), [.NET](<https://devfeed.tech/topics/net.md>), [Polymorphism](<https://devfeed.tech/topics/polymorphism.md>)

Tags: [asp-net-core](<https://devfeed.tech/tags/asp-net-core.md>), [blazor](<https://devfeed.tech/tags/blazor.md>), [c-sharp](<https://devfeed.tech/tags/c-sharp.md>), [c-sharp-15](<https://devfeed.tech/tags/c-sharp-15.md>), [closed-hierarchies](<https://devfeed.tech/tags/closed-hierarchies.md>), [json](<https://devfeed.tech/tags/json.md>), [minimal-api](<https://devfeed.tech/tags/minimal-api.md>), [mvc](<https://devfeed.tech/tags/mvc.md>), [net](<https://devfeed.tech/tags/net.md>), [net-11](<https://devfeed.tech/tags/net-11.md>), [openapi](<https://devfeed.tech/tags/openapi.md>), [polymorphism](<https://devfeed.tech/tags/polymorphism.md>), [signalr](<https://devfeed.tech/tags/signalr.md>), [system-text-json](<https://devfeed.tech/tags/system-text-json.md>), [union-types](<https://devfeed.tech/tags/union-types.md>)

### AI overview

Explains how C# unions and closed hierarchies model API values with a fixed set of possible types in ASP.NET Core. It contrasts unions with open inheritance-based polymorphism and describes System.Text.Json support.

### Source excerpt

Learn how C# unions and closed hierarchies work with System.Text.Json across ASP.NET Core Minimal APIs, MVC, SignalR, Blazor, and OpenAPI. The post Use C# unions and closed hierarchies in ASP.NET Core appeared first on .NET Blog.

## .NET Conf 2026 - Save the Date

DevFeed: [.NET Conf 2026 - Save the Date](<https://devfeed.tech/articles/net-conf-2026-save-the-date-2948.md>)

Original publisher: [Read original article](<https://devblogs.microsoft.com/dotnet/dotnet-conf-2026/>)

Author: Jon Galloway

Published: 2026-08-25T16:28:27Z

Content type: news

Language: en

Sources: [.NET Blog](<https://devfeed.tech/sources/net-blog.md>)

Topics: [.NET Conf](<https://devfeed.tech/topics/net-conf.md>), [.NET](<https://devfeed.tech/topics/net.md>), [C# 15](<https://devfeed.tech/topics/c-sharp-15.md>), [ASP.NET Core](<https://devfeed.tech/topics/asp-net-core.md>), [Blazor](<https://devfeed.tech/topics/blazor.md>), [WebAssembly](<https://devfeed.tech/topics/web-assembly.md>), [Aspire](<https://devfeed.tech/topics/aspire.md>), [OpenAPI Specification](<https://devfeed.tech/topics/openapi.md>), [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>)

Tags: [asp-net-core](<https://devfeed.tech/tags/asp-net-core.md>), [blazor](<https://devfeed.tech/tags/blazor.md>), [c-sharp-15](<https://devfeed.tech/tags/c-sharp-15.md>), [community](<https://devfeed.tech/tags/community.md>), [conference](<https://devfeed.tech/tags/conference.md>), [event](<https://devfeed.tech/tags/event.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [net](<https://devfeed.tech/tags/net.md>), [net-11](<https://devfeed.tech/tags/net-11.md>), [net-conf](<https://devfeed.tech/tags/net-conf.md>), [speakers](<https://devfeed.tech/tags/speakers.md>), [union-types](<https://devfeed.tech/tags/union-types.md>), [virtual-event](<https://devfeed.tech/tags/virtual-event.md>), [webassembly](<https://devfeed.tech/tags/webassembly.md>)

### AI overview

Microsoft announces .NET Conf 2026, a free online event running November 10-12, featuring community sessions and the launch of .NET 11. The article previews updates across .NET, including C# 15 union types, .NET MAUI, ASP.NET Core, Blazor, OpenAPI, Aspire, and the official MCP C# SDK.

### Source excerpt

.NET Conf returns November 10-12, 2026, with three days of sessions, community, and the launch of .NET 11. The post .NET Conf 2026 - Save the Date appeared first on .NET Blog.

## Building a .NET API Gateway with ClickHouse and Aspire

DevFeed: [Building a .NET API Gateway with ClickHouse and Aspire](<https://devfeed.tech/articles/building-a-net-api-gateway-with-clickhouse-and-aspire-5230.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/dotnet-api-gateway-aspire>)

Author: Alex Soffronow Pagonidis

Published: 2026-06-02T00:00:00Z

Content type: tutorial

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [Aspire](<https://devfeed.tech/topics/aspire.md>), [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [.NET](<https://devfeed.tech/topics/net.md>), [API](<https://devfeed.tech/topics/api.md>), [ASP.NET](<https://devfeed.tech/topics/aspnet.md>), [OpenTelemetry](<https://devfeed.tech/topics/opentelemetry.md>), [Blazor](<https://devfeed.tech/topics/blazor.md>), [dashboards](<https://devfeed.tech/topics/dashboards.md>), [C#](<https://devfeed.tech/topics/csharp.md>), [Docker](<https://devfeed.tech/topics/docker.md>)

Tags: [analytics](<https://devfeed.tech/tags/analytics.md>), [api](<https://devfeed.tech/tags/api.md>), [apis](<https://devfeed.tech/tags/apis.md>), [asp-net-core](<https://devfeed.tech/tags/asp-net-core.md>), [backend](<https://devfeed.tech/tags/backend.md>), [blazor](<https://devfeed.tech/tags/blazor.md>), [c-sharp](<https://devfeed.tech/tags/c-sharp.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [containers](<https://devfeed.tech/tags/containers.md>), [docker](<https://devfeed.tech/tags/docker.md>), [metrics](<https://devfeed.tech/tags/metrics.md>), [opentelemetry](<https://devfeed.tech/tags/opentelemetry.md>), [telemetry](<https://devfeed.tech/tags/telemetry.md>), [web](<https://devfeed.tech/tags/web.md>)

### AI overview

A walkthrough of building a .NET API gateway with YARP and Aspire. The gateway routes traffic to backend APIs, records proxied requests in ClickHouse for aggregate analytics, and emits OpenTelemetry metrics. A Blazor dashboard presents the results while Aspire provides live service telemetry, logs, traces, and metrics.

### Source excerpt

A walkthrough of building a .NET API gateway with YARP and Aspire that logs every proxied request to ClickHouse for aggregate analytics, with a materialized view keeping dashboard queries fast as traffic grows.

## .NET Support on Heroku

DevFeed: [.NET Support on Heroku](<https://devfeed.tech/articles/net-support-on-heroku-26397.md>)

Original publisher: [Read original article](<https://www.heroku.com/blog/dotnet-support-on-heroku/>)

Author: Rune Soerensen

Published: 2024-12-03T00:00:00Z

Content type: release

Language: en

Sources: [Heroku](<https://devfeed.tech/sources/heroku.md>)

Topics: [Heroku](<https://devfeed.tech/topics/heroku.md>), [.NET](<https://devfeed.tech/topics/net.md>), [ASP.NET Core](<https://devfeed.tech/topics/asp-net-core.md>), [Blazor](<https://devfeed.tech/topics/blazor.md>), [C#](<https://devfeed.tech/topics/csharp.md>), [F#](<https://devfeed.tech/topics/fsharp.md>), [Visual Basic](<https://devfeed.tech/topics/visual-basic.md>), [cross-platform](<https://devfeed.tech/topics/cross-platform.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Databases](<https://devfeed.tech/topics/databases.md>)

Tags: [announce](<https://devfeed.tech/tags/announce.md>), [apis](<https://devfeed.tech/tags/apis.md>), [app](<https://devfeed.tech/tags/app.md>), [asp-net](<https://devfeed.tech/tags/asp-net.md>), [asp-net-core](<https://devfeed.tech/tags/asp-net-core.md>), [blazor](<https://devfeed.tech/tags/blazor.md>), [buildpacks](<https://devfeed.tech/tags/buildpacks.md>), [c-sharp](<https://devfeed.tech/tags/c-sharp.md>), [can](<https://devfeed.tech/tags/can.md>), [community](<https://devfeed.tech/tags/community.md>), [core](<https://devfeed.tech/tags/core.md>), [cross-platform](<https://devfeed.tech/tags/cross-platform.md>), [deploy](<https://devfeed.tech/tags/deploy.md>), [developers](<https://devfeed.tech/tags/developers.md>), [f-sharp](<https://devfeed.tech/tags/f-sharp.md>), [heroku](<https://devfeed.tech/tags/heroku.md>), [high-performance](<https://devfeed.tech/tags/high-performance.md>), [languages](<https://devfeed.tech/tags/languages.md>), [maintainability](<https://devfeed.tech/tags/maintainability.md>), [net](<https://devfeed.tech/tags/net.md>), [news](<https://devfeed.tech/tags/news.md>), [nextgen](<https://devfeed.tech/tags/nextgen.md>), [platform](<https://devfeed.tech/tags/platform.md>)

### AI overview

Heroku announces that official .NET support is entering public beta. Developers can build and deploy C#, F#, and Visual Basic applications using frameworks including ASP.NET Core and Blazor. The support includes a buildpack, documentation, testing, and guidance for deploying applications, including Blazor apps with Heroku Postgres.

### Source excerpt

We're excited to announce that official support for .NET on Heroku is entering public beta starting today. Developers can now build and deploy applications in C#, F#, and Visual Basic, using frameworks like ASP.NET Core and Blazor, all with the simplicity and flexibility of the Heroku platform. .NET has long been one of the most [...] The post .NET Support on Heroku appeared first on Heroku.