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Merge pull request #226 from sammychinedu2ky/iformfile 

chore: sample code for iformfile
pull/229/head
Rick Anderson 2023-10-16 12:24:34 -10:00 committed by GitHub
parent 9c15638408 69be0c0832
commit 0d601d8292
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3 changed files with 80 additions and 1 deletions
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9
fundamentals/minimal-apis/samples/IFormFile/IFormFile.csproj 100644
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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
</Project>

71
fundamentals/minimal-apis/samples/IFormFile/Program.cs 100644
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using Microsoft.AspNetCore.Antiforgery;
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
var builder = WebApplication.CreateBuilder();
builder.Services.AddAntiforgery();
var app = builder.Build();
app.UseAntiforgery();
string GetOrCreateFilePath(string fileName, string filesDirectory = "uploadFiles")
{
var directoryPath = Path.Combine(app.Environment.ContentRootPath, filesDirectory);
Directory.CreateDirectory(directoryPath);
return Path.Combine(directoryPath, fileName);
}
async Task UploadFileWithName(IFormFile file, string fileSaveName)
{
var filePath = GetOrCreateFilePath(fileSaveName);
await using var fileStream = new FileStream(filePath, FileMode.Create);
await file.CopyToAsync(fileStream);
}
app.MapGet("/", (HttpContext context, IAntiforgery antiforgery) =>
{
var token = antiforgery.GetAndStoreTokens(context);
var html = $"""
<html>
<body>
<form action="/upload" method="POST" enctype="multipart/form-data">
<input name="{token.FormFieldName}" type="hidden" value="{token.RequestToken}" required/>
<br/>
<input name="Name" type="text" placeholder="Name of file" pattern=".*\.(jpg|jpeg|png)$" title="Please enter a valid name ending with .jpg, .jpeg, or .png" required/>
<br/>
<input name="Description" type="text" placeholder="Description of file" required/>
<br/>
<input type="file" name="FileDocument" placeholder="Upload an image..." accept=".jpg,
.jpeg, .png" />
<input type="submit" />
</form>
</body>
</html>
""";
return Results.Content(html, "text/html");
});
app.MapPost("/upload", async Task<Results<Ok<string>,
BadRequest<string>>> ([FromForm] FileUpload file, HttpContext context, IAntiforgery antiforgery) =>
{
try
{
await antiforgery.ValidateRequestAsync(context);
await UploadFileWithName(file.FileDocument, file.Name);
return TypedResults.Ok($"Your file with the description: {file.Description} has been uploaded successfully");
}
catch (AntiforgeryValidationException e)
{
return TypedResults.BadRequest("Invalid anti-forgery token");
}
});
app.Run();
public class FileUpload
{
public string? Name { get; set; }
public string? Description { get; set; }
public IFormFile? FileDocument { get; set; }
}

1
fundamentals/minimal-apis/samples/IFormFile/Readme.txt
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Delete after adding sample