❔ ✅ Swagger page doesn't load in fresh generated 7.0 .net webapi

V

v0fbu1vm•5/1/23, 3:00 PM

The application doesn't seem to be freshly generated. There have been some modifications. Try this

       app.UseSwagger();

       app.UseSwaggerUI();

       app.UseSwagger();

       app.UseSwaggerUI();

       app.UseSwagger();

       app.UseSwaggerUI();

       app.UseSwagger();

       app.UseSwaggerUI();

and navigate to

localhost:port/swagger

localhost:port/swagger

localhost:port/swagger

localhost:port/swagger when running.

P

PjotrHOP•5/1/23, 3:04 PM

Yes, c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1"); on line 22 was added in an attempt at troubleshooting. Removed it again, same result on http://localhost:5132/swagger

P

PjotrHOP•5/1/23, 3:05 PM

P

PjotrHOP•5/1/23, 3:05 PM

here's my launchsettings for good measure

P

Pobiega•5/1/23, 3:20 PM

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();

P

Pobiega•5/1/23, 3:20 PM

this is the program.cs for a freshly generated web api

P

Pobiega•5/1/23, 3:21 PM

if you remove your alterations to SwaggerGen and SwaggerEndpoint, does that help?

P

PjotrHOP•5/1/23, 3:23 PM

Nope, same result. Note that I've already tried the fresh version, my alterations have been done to troubleshoot.

P

Pobiega•5/1/23, 3:24 PM

very weird, since the fresh template works

P

PjotrHOP•5/1/23, 3:24 PM

I can try to generate another new project

P

Pobiega•5/1/23, 3:24 PM

yeah just

dotnet new webapi -n DeleteMe

dotnet new webapi -n DeleteMe

dotnet new webapi -n DeleteMe

dotnet new webapi -n DeleteMe

P

Pobiega•5/1/23, 3:25 PM

and run it straight up, not a single line of code modified

P

PjotrHOP•5/1/23, 3:25 PM

will do

P

Pobiega•5/1/23, 3:25 PM

if that doesnt work, something is very weird

P

PjotrHOP•5/1/23, 3:25 PM

DeleteMe? what's this

P

Pobiega•5/1/23, 3:25 PM

just the name of the new project

P

PjotrHOP•5/1/23, 3:25 PM

oh lol

P

Pobiega•5/1/23, 3:25 PM

-n

-n

-n

-n gives it a name via the CLI and creates it in a new subfolder

P

Pobiega•5/1/23, 3:25 PM

instead of generating the project where you are

P

PjotrHOP•5/1/23, 3:26 PM

still the same

P

PjotrHOP•5/1/23, 3:26 PM

Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]
Failed to determine the https port for redirect.

P

PjotrHOP•5/1/23, 3:26 PM

warning when trying to access root url

P

PjotrHOP•5/1/23, 3:26 PM

and http://localhost:5113/swagger

P

Pobiega•5/1/23, 3:27 PM

well, you shouldn't be accessing it on HTTP

P

Pobiega•5/1/23, 3:28 PM

how are you running it?

P

PjotrHOP•5/1/23, 3:28 PM

dotnet run

P

PjotrHOP•5/1/23, 3:28 PM

it defaults to http apparently

P

PjotrHOP•5/1/23, 3:29 PM

P

Pobiega•5/1/23, 3:29 PM

okay. you can make it use https by default by re-ordering the profiles - or use

dotnet run --launch-profile https

dotnet run --launch-profile https

dotnet run --launch-profile https

dotnet run --launch-profile https

P

PjotrHOP•5/1/23, 3:29 PM

this is with https in url

P

PjotrHOP•5/1/23, 3:31 PM

that worked

P

PjotrHOP•5/1/23, 3:31 PM

but still the same 404 in browser

P

Pobiega•5/1/23, 3:32 PM

https uses a different port

P

Pobiega•5/1/23, 3:32 PM

make sure you are accessing the correct url

P

Pobiega•5/1/23, 3:32 PM

P

PjotrHOP•5/1/23, 3:32 PM

yes it's on https://localhost:7289

P

PjotrHOP•5/1/23, 3:34 PM

P

PjotrHOP•5/1/23, 3:34 PM

P

Pobiega•5/1/23, 3:35 PM

Don't take this the wrong way, but you must be doing something wrong :p

P

Pobiega•5/1/23, 3:35 PM

are you sure you dont have another instance of the program running already, causing binding failures?

P

Pobiega•5/1/23, 3:35 PM

or another app using those ports

P

PjotrHOP•5/1/23, 3:36 PM

Not that I know of. Gonna make sure

P

PjotrHOP•5/1/23, 3:36 PM

brb rebooting

P

PjotrHOP•5/1/23, 3:39 PM

Nah still nothing

P

PjotrHOP•5/1/23, 3:40 PM

only thing I can think of now is that I had to manually set my environment variable for the 7.0 SDK to generate a project

P

PjotrHOP•5/1/23, 3:41 PM

setting it to C:\Program Files\dotnet\sdk\7.0.203\Sdks after installing 7.0 sdk

P

PjotrHOP•5/1/23, 3:41 PM

but I can generate the project so clearly that works

P

PjotrHOP•5/1/23, 3:44 PM

Noticing something else in my env variables: %USERPROFILE%.dotnet\tools --- C:\Users\peter.dotnet doesn't have any tools folder

P

PjotrHOP•5/1/23, 3:44 PM

idk if that's relevant

P

Pobiega•5/1/23, 3:45 PM

probably not for this

❔ ✅ Swagger page doesn't load in fresh generated 7.0 .net webapi

Similar Threads

Similar Threads

Similar Threads