C#•3mo 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•3mo ago

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

this_is_pain•3mo ago

he is using ListenAnyIP tho

Pobiega•3mo ago

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

this_is_pain•3mo ago

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

Unknown User•3mo ago

Message Not Public

electronic heartbreak.OP•3mo 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•3mo ago

Message Not Public

MODiX•3mo 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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