C#•9mo ago

✅ Directory path

Hi, In the appsettings.json file, I've specified a specific path to the data.json file. Unfortunately, the file cannot be found at the provided path: "Path": "/Users/an/Desktop/Development/Project/Project.Api/App_data/data.json". The error message indicates:

System.IO.DirectoryNotFoundException: Could not find a part of the path '/Library/Frameworks/Mono.framework/Commands:/Applications/Visual Studio.app/Contents/MacOS:/usr/bin:/bin:/usr/sbin:/sbin:/opt/homebrew/bin:/usr/local/bin:~/.dotnet/tools:/usr/local/share/dotnet'.

Occurring on the following code when trying to deserialize: string fullPath = Path.Combine(parameters.Path); var json = File.ReadAllText(fullPath); var searchMethod = JsonConvert.DeserializeObject<List<DefinitionJson>>(json); I'm using an iOS operating system. Looking forward to a reply 🙂

25 Replies

The Fog from Human Resources•9mo ago

Try using Relative path instead of absolute path

Jimmacle•9mo ago

the path it's saying it can't find is not even close to the path you're putting in the config, how are you reading the path in your code? that looks like an environment PATH instead

NohxiOP•9mo ago

It is , that is why I am wondering how pathing works on iOS or dotnet

Jimmacle•9mo ago

have you debugged to make sure parameters.Path contains the value you expect?

NohxiOP•9mo ago

parameters.Path "/Library/Frameworks/Mono.framework/Commands:/Applications/Visual Studio.app/Contents/MacOS:/usr/bin:/bin:/usr/sbin:/sbin:/opt/homebrew/bin:/usr/local/bin:~/.dotnet/tools:/usr/local/share/dotnet" complete different path

Jimmacle•9mo ago

so the problem is not in the code you shared where does that value come from?

NohxiOP•9mo ago

originally from appsettings.json

Jimmacle•9mo ago

show code because that's not what's in appsettings.json

NohxiOP•9mo ago

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    "AppDbConnectionString": "server=localhost;database=db;User=root;Password=admin;"
  },
  "Path": "/Users/an/Desktop/Development/Project/Project.Api/App_data/data.json"

}

Jimmacle•9mo ago

i need to see all the code that is involved in getting from appsettings.json to parameters.Path having a value we know the json has a certain value and parameters.Path has the wrong value so the problem is somwhere in the middle

NohxiOP•9mo ago

Sure let me organize the code Repo

public class DefinitionRepository : IDefinitionRepository
{
    private readonly IParameters parameters;

    public DefinitionRepository(IParameters parameters)
    {
        this.parameters = parameters;
    }

    public async Task<IEnumerable<DefinitionJson>> Get()
    {
        string fullPath = Path.Combine(parameters.Path);

        var json = File.ReadAllText(fullPath);

        var searchMethod = JsonConvert.DeserializeObject<List<DefinitionJson>>(json);

        return searchMethod;
    }
}

Jimmacle•9mo ago

this still doesn't tell me where parameters.Path gets a value

NohxiOP•9mo ago

Interface `namespace Definition.Infrastructure { public interface IParameters { string Path { get; } } }z

Jimmacle•9mo ago

that's all i want to know

NohxiOP•9mo ago

Parameter dir

namespace Definition.Api.Parameters
{
    public class Parameters : IParameters
    {
        private readonly IConfiguration configuration;

        public Parameters(IConfiguration configuration)
        {
            this.configuration = configuration;
        }

        public string Path => configuration["Path"] ?? "";
    }
}

Jimmacle•9mo ago

as an aside, this isn't how you should be doing this you should bind your configuration class during application startup instead of injecting IConfiguration anyway, i'd put a breakpoint on that getter and check the configuration in general to see if it has reasonable values

NohxiOP•9mo ago

injected in startup : builder.Services.AddScoped<IParameters, Parameters>(); ty though

Jimmacle•9mo ago

that's not what i'm saying https://learn.microsoft.com/en-us/aspnet/core/fundamentals/configuration/options?view=aspnetcore-8.0#the-options-pattern if the configuration key Path has the wrong value itself, i would try just changing it to a different name in case it's conflicting with the environment variable PATH

NohxiOP•9mo ago

Hahaha that actually did the job

Jimmacle•9mo ago

yeah, environment variables take precedence over basically every other configuration source

NohxiOP•9mo ago

Thank you appreciate it alot. Have been stuck for somewhat 4 hours now

Jimmacle•9mo ago

for future reference this is described in the configuration docs https://learn.microsoft.com/en-us/aspnet/core/fundamentals/configuration/?view=aspnetcore-8.0#default-application-configuration-sources

Configuration in ASP.NET Core

Learn how to use the Configuration API to configure AppSettings in an ASP.NET Core app.

Unknown User•9mo ago

Message Not Public

MODiX•9mo ago

appsettings.json:

{
  "My": {
    "Foo": {
      "Kix": 5
    }
  }
}

{
  "My": {
    "Foo": {
      "Kix": 5
    }
  }
}

src/Foo/FooOptions.cs:

public class FooOptions
{
  public const string SectionName = "My:Foo";

  public string Bar {get;set;} = "default value for bar";
  public int Kix {get;set;} = -1;
  public DateTime? Pouet {get;set;} = default;
}

public class FooOptions
{
  public const string SectionName = "My:Foo";

  public string Bar {get;set;} = "default value for bar";
  public int Kix {get;set;} = -1;
  public DateTime? Pouet {get;set;} = default;
}

src/Foo/FooServiceCollectionExtensions.cs:

namespace Microsoft.Extensions.DependencyInjection; // <==== recommanded for service.Add so that you don't clutter Startup file

public class FooServiceCollectionExtensions
{
  public static IServiceCollection AddFoo(this IServiceCollection services) =>
    services
      .AddOptions<FooOptions>()
      .BindConfiguration(FooOptions.SectionName)
      .Validate(options => options.Kix >= 0, $"The configuration key '{FooOptions.SectionName}:{nameof(Kix)}' cannot be negative")
      ;

  public static IServiceCollection AddFoo(this IServiceCollection services, Action<FooOptions> configure) =>
    services
      .AddFoo()
      .Configure(configure);

namespace Microsoft.Extensions.DependencyInjection; // <==== recommanded for service.Add so that you don't clutter Startup file

public class FooServiceCollectionExtensions
{
  public static IServiceCollection AddFoo(this IServiceCollection services) =>
    services
      .AddOptions<FooOptions>()
      .BindConfiguration(FooOptions.SectionName)
      .Validate(options => options.Kix >= 0, $"The configuration key '{FooOptions.SectionName}:{nameof(Kix)}' cannot be negative")
      ;

  public static IServiceCollection AddFoo(this IServiceCollection services, Action<FooOptions> configure) =>
    services
      .AddFoo()
      .Configure(configure);

Program.cs / Startup.cs:

services.AddFoo();
// or
services.AddFoo(fooOptions => fooOptions.Kix = 12);

services.AddFoo();
// or
services.AddFoo(fooOptions => fooOptions.Kix = 12);

Bar.cs:

public class Bar
{
  private readonly FooOptions _fooOptions;

  // .Value in ctor is fine only if it's always ever a non-changing value (no reload and/or no scoped resolution)
  public Bar(IOptions<FooOptions> fooOptions)
    => _fooOptions = fooOptions.Value;
}

public class Bar
{
  private readonly FooOptions _fooOptions;

  // .Value in ctor is fine only if it's always ever a non-changing value (no reload and/or no scoped resolution)
  public Bar(IOptions<FooOptions> fooOptions)
    => _fooOptions = fooOptions.Value;
}

Unknown User•9mo ago

Message Not Public

Gaming

Programming

✅ Directory path