Profiles and Media

Goal

This snapshot advances Ironwharf Gazette by teaching you to show author profiles and accept constrained avatar uploads.

Every numbered folder is a complete app. Run this stage independently, then compare it with the previous folder.

Prerequisites

Use .NET 8 SDK, a terminal, and Docker for Postgres stages. You should recognize C#, HTTP verbs, and basic HTML.

Port 5081 must be free. Copy .env.example and review appsettings.json before database stages.

• .NET 8 SDK
• A code editor and terminal
• Docker from part 4 onward

Concepts

Upload handlers must check content type and size, generate safe filenames, and store paths—not user-supplied names.

Keep components focused: Razor components present data, form handlers and EF Core enforce rules, and Blazor escapes output by default.

Walkthrough

Protect profile editing, allowlist display name and bio, and serve uploads from wwwroot.

Read the example, then open the matching snapshot. The repository includes the surrounding setup and error handling.

if (Image.Length > 2 * 1024 * 1024) { Error = "Image too large"; return; }

Run and verify

Enter 08-Profiles-And-Media, restore packages, and run on port 5081.

Open http://127.0.0.1:5081. Watch the terminal for validation and database errors.

docker compose up -d
git clone https://github.com/michaeldunga1/fcc-blazor-blog.git
cd fcc-blazor-blog/08-Profiles-And-Media
cp .env.example .env
dotnet restore
dotnet run --urls http://127.0.0.1:5081

Troubleshooting

If no file arrives, confirm enctype=multipart/form-data and the field name.

Restore errors usually mean the SDK is missing or you opened the wrong folder. For Postgres failures, confirm Docker is running and the ironwharf_NN database name matches the snapshot.

• Read the first error first
• Restart after environment changes
• Never commit .env or production secrets

Try this

Upload a valid image, then reject a text file.

Test a happy path and one invalid or unauthorized request.

• Make one small change
• Test it in the browser
• Compare with the next snapshot only after it works