hello world

.gitignore

@@ -0,0 +1,3 @@
+.idea
+/vendor/
+/build/

docker-compose.yml

@@ -0,0 +1,70 @@
+version: '3'
+services:
+  postgres:
+    command: postgres -c shared_preload_libraries=pg_stat_statements -c pg_stat_statements.track=all
+    container_name: template_nk_postgres
+    environment:
+      - POSTGRES_DB=nakama
+      - POSTGRES_PASSWORD=localdb
+    expose:
+      - "8080"
+      - "5432"
+    image: postgres:12.2-alpine
+    ports:
+      - "5432:5432"
+      - "8080:8080"
+    healthcheck:
+      test: ["CMD", "pg_isready", "-U", "postgres", "-d", "nakama"]
+      interval: 3s
+      timeout: 3s
+      retries: 5
+    volumes:
+      - data:/var/lib/postgresql/data
+
+  plugin-builder:
+    image: heroiclabs/nakama-pluginbuilder:3.21.0
+    container_name: nk_plugin_builder
+    working_dir: /workspace
+    volumes:
+      - ./:/workspace
+    entrypoint:
+      - sh
+      - -c
+      - |
+        mkdir -p build
+        go mod tidy
+        go build --trimpath --buildmode=plugin -o build/main.so ./plugins
+
+  nakama:
+    image: heroiclabs/nakama:3.21.0
+    container_name: nk_backend
+    depends_on:
+      - postgres
+    entrypoint:
+      - "/bin/sh"
+      - "-ecx"
+      - >
+        /nakama/nakama migrate up --database.address postgres:localdb@postgres:5432/nakama?sslmode=disable &&
+        exec /nakama/nakama --config /nakama/data/local.yml --database.address postgres:localdb@postgres:5432/nakama?sslmode=disable
+    volumes:
+      - ./local.yml:/nakama/data/local.yml
+      - ./build:/nakama/data/modules
+    expose:
+      - "7349"
+      - "7350"
+      - "7351"
+    healthcheck:
+      test: ["CMD", "/nakama/nakama", "healthcheck"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    links:
+      - "postgres:db"
+    ports:
+      - "7349:7349"
+      - "7350:7350"
+      - "7351:7351"
+    restart: unless-stopped
+
+volumes:
+  data:

go.mod

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+module git.aetoskia.com/lila-games/tic-tac-toe
+
+go 1.21
+
+require github.com/heroiclabs/nakama-common v1.31.0
+
+require google.golang.org/protobuf v1.31.0 // indirect

go.sum

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+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/heroiclabs/nakama-common v1.31.0 h1:oaJbwVRUiFXA77gXF3XNrGCmR0CXf7+2vXEvaBLkP6w=
+github.com/heroiclabs/nakama-common v1.31.0/go.mod h1:Os8XeXGvHAap/p6M/8fQ3gle4eEXDGRQmoRNcPQTjXs=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=

local.yml

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+console:
+  max_message_size_bytes: 409600
+logger:
+  level: "DEBUG"
+session:
+  token_expiry_sec: 7200 # 2 hours
+socket:
+  max_message_size_bytes: 4096 # reserved buffer
+  max_request_size_bytes: 131072

main.go

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+package main

plugins/main.go

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+package main
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/heroiclabs/nakama-common/runtime"
+)
+
+func HelloWorld(
+  ctx context.Context,
+  logger runtime.Logger,
+  db *sql.DB,
+  nk runtime.NakamaModule,
+  payload string,
+) (string, error) {
+	logger.Info("HelloWorld RPC called — payload: %s", payload)
+	return `{"message": "Hello from Go RPC!"}`, nil
+}
+
+// Required module initializer
+func InitModule(
+  ctx context.Context,
+  logger runtime.Logger,
+  db *sql.DB,
+  nk runtime.NakamaModule,
+  initializer runtime.Initializer,
+) error {
+	if err := initializer.RegisterRpc("hello_world", HelloWorld); err != nil {
+		logger.Error("Failed to register RPC: %v", err)
+		return err
+	}
+
+	logger.Info("Go module loaded successfully!")
+	return nil
+}