Basic flake with go http server and debugging

.gitignore

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+result

.vscode/settings.json

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+{
+  "nixEnvSelector.nixFile": "${workspaceRoot}/shell.nix"
+}

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1683627095,
+        "narHash": "sha256-8u9SejRpL2TrMuHBdhYh4FKc1OGPDLyWTpIbNTtoHsA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a08e061a4ee8329747d54ddf1566d34c55c895eb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A simple Go project built with Nix";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        server = pkgs.callPackage ./server/default.nix { };
+      in
+      {
+        packages."dynamic-frame-server" = server;
+        packages.default = server;
+        devShell = pkgs.mkShell {
+          buildInputs = [ pkgs.go ];
+        };
+      }
+    );
+}

server/default.nix

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+{ pkgs, ... }:
+
+pkgs.buildGoModule rec {
+  pname = "dynamic-frame-server";
+  version = "0.0.1";
+
+  src = ./.;
+
+  vendorSha256 = "uTqGdqswbnmPsEm5NISD0Nh9ry4GLMAsuVF7+U8BRdA=";
+}

server/go.mod

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+module git.neet.dev/zuckerberg/dynamic-frame/server
+
+go 1.19
+
+require github.com/go-chi/chi/v5 v5.0.8

server/go.sum

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+github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0=
+github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=

server/main.go

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+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+)
+
+// Define a function to handle incoming requests
+func requestHandler(w http.ResponseWriter, r *http.Request) {
+	// Get the 'name' variable from the request
+	name := chi.URLParam(r, "name")
+
+	// Use a default value if 'name' is not present
+	if name == "" {
+		name = "World"
+	}
+
+	// Respond with a greeting message
+	fmt.Fprintf(w, "Hello, %s!\n", name)
+}
+
+func main() {
+  fmt.Println("Hello, Nix!")
+
+	// Create a new Chi router
+	router := chi.NewRouter()
+
+	// Register the requestHandler function to handle requests at the root path
+	// and a path with the 'name' parameter
+	router.Get("/", requestHandler)
+	router.Get("/{name}", requestHandler)
+
+	// Start the HTTP server on port 8080 and log any errors
+	log.Fatal(http.ListenAndServe(":8080", router))
+}

shell.nix

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+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+mkShell {
+  buildInputs = [
+    go
+  ];
+
+  # Disabling hardening is required for go debugger to work. Not needed for packaging.
+  NIX_HARDENING_ENABLE = "";
+}