Railway•5mo ago

Can't read appsettings.json file in c#.net core

Hello friends. I am facing a problem in my project. The problem When deploying the application, the "appsettings.json" file is not found/read when the application is run. The file is copied to the deploy page. I don't know if it was the way I programmed it that is generating this error. Project data ID: 608729b3-caba-4f38-82e1-b0830df0e764 Language: c#.net core Type: RESTFull API.

3 Replies

Percy•5mo ago

Project ID: N/A

Brody•5mo ago

is that file in your repo?

Misa•5mo ago

Yes the file is in the repository Follow my c#.net code, Program.cs:

using ValveSteamDataTools.Domain.Models;

var builder = WebApplication.CreateBuilder(args);

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

builder.Services.AddAutoMapper(typeof(AutoMapperProfile));

builder.Services.AddScoped<IValveSteamService, ValveSteamService>();
builder.Services.AddScoped<IPlayerService, PlayerService>();
builder.Services.AddScoped<IGameService, GameService>();

var policyName = "ValeSteamDataTools";

builder.Services.AddCors(options =>
{
    options.AddPolicy
    (
        name: policyName,
        policy => policy
            .WithOrigins(AppSettings.Frontend.Url)
            .AllowAnyHeader()
            .AllowAnyMethod()
            .AllowCredentials()
    );
});

var app = builder.Build();

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

app.UseHttpsRedirection();
app.UseCors(policyName);
app.UseAuthorization();
app.MapControllers();
app.Run();

using ValveSteamDataTools.Domain.Models;

var builder = WebApplication.CreateBuilder(args);

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

builder.Services.AddAutoMapper(typeof(AutoMapperProfile));

builder.Services.AddScoped<IValveSteamService, ValveSteamService>();
builder.Services.AddScoped<IPlayerService, PlayerService>();
builder.Services.AddScoped<IGameService, GameService>();

var policyName = "ValeSteamDataTools";

builder.Services.AddCors(options =>
{
    options.AddPolicy
    (
        name: policyName,
        policy => policy
            .WithOrigins(AppSettings.Frontend.Url)
            .AllowAnyHeader()
            .AllowAnyMethod()
            .AllowCredentials()
    );
});

var app = builder.Build();

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

app.UseHttpsRedirection();
app.UseCors(policyName);
app.UseAuthorization();
app.MapControllers();
app.Run();

I did the reading a little differently in my program. Handling reading in an AppSettings.cs class, using static properties and libraries for reading the IConfiguration file This is the result of the class:

namespace ValveSteamDataTools.Domain.Models
{
    public class AppSettings
    {
        public static class ValveSteam
        {
            public static class BaseUrl
            {
                public static string Api { get => GetValeuFromKey("ValveSteam:BaseUrl:Api"); }
                public static string Store { get => GetValeuFromKey("ValveSteam:BaseUrl:Store"); }
            }
        }

        public static class Frontend
        {
            public static string Url { get => GetValeuFromKey("Frontend:Url"); }
        }

        private static IConfigurationRoot GetAppSettings()
        {
            IConfigurationBuilder builder = new ConfigurationBuilder();
            var appSettingFile = Path.Combine(Directory.GetCurrentDirectory(), "appsettings.json");

            if (!File.Exists(appSettingFile))
                throw new Exception("The appsettings.json file not found in project.");

            builder.AddJsonFile(appSettingFile);
            IConfigurationRoot root = builder.Build();
            
            return root;
        }

        private static string GetValeuFromKey(string key) => GetAppSettings().GetSection(key).Value!;
    }
}

namespace ValveSteamDataTools.Domain.Models
{
    public class AppSettings
    {
        public static class ValveSteam
        {
            public static class BaseUrl
            {
                public static string Api { get => GetValeuFromKey("ValveSteam:BaseUrl:Api"); }
                public static string Store { get => GetValeuFromKey("ValveSteam:BaseUrl:Store"); }
            }
        }

        public static class Frontend
        {
            public static string Url { get => GetValeuFromKey("Frontend:Url"); }
        }

        private static IConfigurationRoot GetAppSettings()
        {
            IConfigurationBuilder builder = new ConfigurationBuilder();
            var appSettingFile = Path.Combine(Directory.GetCurrentDirectory(), "appsettings.json");

            if (!File.Exists(appSettingFile))
                throw new Exception("The appsettings.json file not found in project.");

            builder.AddJsonFile(appSettingFile);
            IConfigurationRoot root = builder.Build();
            
            return root;
        }

        private static string GetValeuFromKey(string key) => GetAppSettings().GetSection(key).Value!;
    }
}

And used libs:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="6.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
  </ItemGroup>

</Project>

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="6.0.0" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
  </ItemGroup>

</Project>

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Can't read appsettings.json file in c#.net core