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swaggerasp.net-core-2.1

Swagger UI showing "Fetch error Not Found"

in my asp.net core 2.1 api I have added static files serving and Swashbuckle, but apparently can't find the generated .json

services.AddSwaggerGen(x =>
    x.SwaggerDoc("Swagger", new Info { Title = "Asp.Net Core 2 Api", Description = "Swagger Core Api" }));
----
app.UseCors("AllowAll");
app.UseAuthentication();
app.UseStaticFiles();

app.UseSwagger();
app.UseSwaggerUI(x => x.SwaggerEndpoint("/swagger/swagger.json", "Core Api"));

enter image description here

any idea? thanks

Solution

  • Your swagger end-point has the wrong Url, hence the 'Not Found' Error. Swagger documents constructed via the default way have their url in the format /swagger/<document-name>/swagger.json where is the name (first string) parameter supplied in the call to x.SwaggerDoc("Swagger", new Info {...});

    In your case you supplied "Swagger", hence your endpoint url should be "/swagger/Swagger/swagger.json".

    and in your ConfigureServices your call should be like

    app.UseSwaggerUI(x => x.SwaggerEndpoint("/swagger/Swagger/swagger.json", "Core Api"));