C#•2mo ago

✅ How to talk to Web API hosted on RPI?

Hello, I have created a Web API project with C# and I have published that project to my Pi. When I run the 'launch' command on my Pi I receive:

info: Microsoft.Hosting.Lifetime[14]
      Now listening on: http://localhost:5000
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]

info: Microsoft.Hosting.Lifetime[14]
      Now listening on: http://localhost:5000
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]

In Postman, I want to connect to it by using the following http://{my-PI-IP}:5000/{my-Endpoint} Yet I keep receiving Error: connect ECONNREFUSED {my-PI-IP}:5000. The image describes my publish specifications. And In my program.cs I only added these lines of code just to be sure: Program.cs

builder.WebHost.ConfigureKestrel(options =>
{
    options.ListenAnyIP(5000);
});

// Removed the app.UseHttpsRedirection();

builder.WebHost.ConfigureKestrel(options =>
{
    options.ListenAnyIP(5000);
});

// Removed the app.UseHttpsRedirection();

This is what my launchSettings.json looks like;

`{
  "profiles": {
    "http": {
      "commandName": "Project",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "dotnetRunMessages": true,
      "applicationUrl": "http://0.0.0.0:5000"
    },
    "https": {
      "commandName": "Project",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "dotnetRunMessages": true,
      "applicationUrl": "https://0.0.0.0:7273;http://0.0.0.0:5022"
    },
    "Container (Dockerfile)": {
      "commandName": "Docker",
      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}",
      "environmentVariables": {
        "ASPNETCORE_HTTPS_PORTS": "8081",
        "ASPNETCORE_HTTP_PORTS": "8080"
      },
      "publishAllPorts": true,
      "useSSL": true
    }
  },
  "$schema": "https://json.schemastore.org/launchsettings.json"
}

`{
  "profiles": {
    "http": {
      "commandName": "Project",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "dotnetRunMessages": true,
      "applicationUrl": "http://0.0.0.0:5000"
    },
    "https": {
      "commandName": "Project",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "dotnetRunMessages": true,
      "applicationUrl": "https://0.0.0.0:7273;http://0.0.0.0:5022"
    },
    "Container (Dockerfile)": {
      "commandName": "Docker",
      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}",
      "environmentVariables": {
        "ASPNETCORE_HTTPS_PORTS": "8081",
        "ASPNETCORE_HTTP_PORTS": "8080"
      },
      "publishAllPorts": true,
      "useSSL": true
    }
  },
  "$schema": "https://json.schemastore.org/launchsettings.json"
}

8 Replies

Pobiega•2mo ago

You are binding to localhost, not all available interfaces Meaning only local connections are accepted

FestivalDelGelato•2mo ago

he is using ListenAnyIP tho

Pobiega•2mo ago

Yes, but the launch message is quite clear So we must figure out why

FestivalDelGelato•2mo ago

i would try using --urls in the command line as a first test

Unknown User•2mo ago

Message Not Public

electronic heartbreak.OP•2mo ago

Thanks for the replies. I gave it a go again without any changes and somehow it did not work at first, due to permission issues in Linux. But after fixing that I ran the stuff again and it works... http://{my-PI-IP}:5000/{my-endpoint}

Unknown User•2mo ago

Message Not Public

MODiX•2mo ago

If you have no further questions, please use /close to mark the forum thread as answered

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✅ How to talk to Web API hosted on RPI?

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