Solving the Debugging Issues in Blazor WebAssembly and Web API Projects

A comprehensive guide to resolving debugging challenges when working with Blazor WebAssembly and Web API projects that share the same port.
---
This video is based on the question https://stackoverflow.com/q/67058983/ asked by the user 'R.Haughton' ( https://stackoverflow.com/u/8468850/ ) and on the answer https://stackoverflow.com/a/67061556/ provided by the user 'MrC aka Shaun Curtis' ( https://stackoverflow.com/u/13065781/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Blazor (WASM) and Web Api separate Project Debugging

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Debugging Challenges in Blazor WebAssembly and Web API Projects

If you are a developer working with Blazor WebAssembly (WASM) and Web API projects, you may encounter debugging challenges, particularly when both projects share the same port. This situation can cause confusion and frustration, especially if breakpoints do not work as expected or if you receive messages indicating that no symbols have been loaded. In this guide, we will explore the problem and provide an effective solution to facilitate debugging in such setups.

Understanding the Problem

When you set up a Blazor WASM project alongside a Web API project, and both are configured to share the same port, you may run into issues during debugging. Some common signs of these issues include:

Breakpoints in your Blazor project not being hit, displaying a message like, "The breakpoint will not currently be hit. No symbols have been loaded for this document."

The ability to access your Blazor site only when launching the Web API project, which might seem counterintuitive.

Initial Setup

The typical setup involves:

WASM Blazor UI Project: This is where the UI components of your application are created using Blazor.

Web API Project: This project serves as the backend for your application, providing data and handling business logic.

Shared Port: Both projects are set to communicate through the same local ports (e.g., https://localhost:5001 and http://localhost:5000), often for ease of development.

Finding a Solution

The following steps outline how to resolve the debugging issues you are facing by adjusting your project configurations properly.

Step 1: Verify Project Configuration

Make sure you confirm certain assumptions:

You're running the project in AspNetCore and not IIS.

The API Server project is set as your startup project.

You are in Debug mode.

Your setup resembles the template used for a Web Assembly hosted on ASPNetCore.

Step 2: Adjust LaunchSettings.json

The key to resolving the debugging issue lies in the LaunchSettings.json file for your API project. Here’s what you need to do:

Inspect URI: Add the inspectUri configuration directly within the API project's launch settings. This entry will enable the connection necessary for the debugging process.

Here’s an example of what your LaunchSettings.json might look like in the API project:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Be Patient During Startup

After setting up everything correctly, remember that starting in debug mode can be slow. Thus, if you notice delays, give your application some time to fully load and initialize.

Conclusion

By following these steps, you should be able to resolve any debugging issues with your Blazor WebAssembly and Web API projects that share the same port. Proper configuration of the LaunchSettings.json is key to making sure you can effectively debug your Blazor components. Once you have the correct settings in place, debugging should become a smoother experience, allowing you to focus on building great applications without frustration.

If you have further questions or continue to face issues, feel free to reach out or consult additional resources on Blazor and ASP.NET Core development. Happy coding!

Видео Solving the Debugging Issues in Blazor WebAssembly and Web API Projects канала vlogize