I had to write some hooks for our project. That’s why I am trying to setup Nakama typescript server runtime using TypeScript Runtime tutorial. But when I am using the command “npm run build” I am having the below error.
(node:60942) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
[!] RollupError: Node tried to load your configuration file as CommonJS even though it is likely an ES module. To resolve this, change the extension of your configuration to ".mjs", set "type": "module" in your package.json file or pass the "--bundleConfigAsCjs" flag.
Original error: Cannot use import statement outside a module
https://rollupjs.org/guide/en/#--bundleconfigascjs
/home/ashik/ts-project/rollup.config.js:1
import resolve from "@rollup/plugin-node-resolve";
flavio
October 31, 2022, 3:57pm
2
Hello @Shahariar_Ashik ,
Could you post the contents of the configuration files mentioned in this section of the documentation?
package.json
{
"name": "ts-project",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"build": "rollup -c",
"type-check": "tsc --noEmit"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"@babel/core": "^7.19.6",
"@babel/plugin-external-helpers": "^7.18.6",
"@babel/preset-env": "^7.19.4",
"@rollup/plugin-babel": "^6.0.2",
"@rollup/plugin-commonjs": "^23.0.2",
"@rollup/plugin-json": "^5.0.1",
"@rollup/plugin-node-resolve": "^15.0.1",
"@rollup/plugin-typescript": "^9.0.2",
"rollup": "^3.2.3",
"tslib": "^2.4.0",
"typescript": "^4.8.4"
},
"dependencies": {
"nakama-runtime": "github:heroiclabs/nakama-common"
}
}
rollup.config.js
import resolve from "@rollup/plugin-node-resolve";
import commonJS from "@rollup/plugin-commonjs";
import json from "@rollup/plugin-json";
import babel from "@rollup/plugin-babel";
import typescript from "@rollup/plugin-typescript";
import pkg from "./package.json";
const extensions = [".mjs", ".js", ".ts", ".json"];
export default {
input: "./src/main.ts",
external: ["nakama-runtime"],
plugins: [
// Allows node_modules resolution
resolve({ extensions }),
// Compile TypeScript
typescript(),
json(),
// Resolve CommonJS modules
commonJS({ extensions }),
// Transpile to ES5
babel({
extensions,
babelHelpers: "bundled",
}),
],
output: {
file: "build/index.js",
},
};
babel.config.json
{
"presets": ["@babel/env"],
"plugins": []
}
tsconfig.json
{
"compilerOptions": {
"noImplicitReturns": true,
"moduleResolution": "node",
"esModuleInterop": true,
"noUnusedLocals": true,
"removeComments": true,
"target": "es5",
"module": "ESNext",
"strict": false
},
"files": ["./node_modules/nakama-runtime/index.d.ts"],
"include": ["src/**/*"],
"exclude": ["node_modules", "build"]
}
main.ts
function InitModule(
ctx: nkruntime.Context,
logger: nkruntime.Logger,
nk: nkruntime.Nakama,
initializer: nkruntime.Initializer
) {
logger.info("TypeScript module loaded.");
}
// Reference InitModule to avoid it getting removed on build
!InitModule && InitModule.bind(null);
local.yml
console:
max_message_size_bytes: 409600
logger:
level: "DEBUG"
runtime:
js_entrypoint: "build/index.js"
session:
token_expiry_sec: 7200 # 2 hours
socket:
max_message_size_bytes: 4096 # reserved buffer
max_request_size_bytes: 131072
Dockerfile
FROM node:alpine AS node-builder
WORKDIR /backend
COPY package*.json .
RUN npm install
COPY . .
RUN npm run build
FROM registry.heroiclabs.com/heroiclabs/nakama:3.14.0
COPY --from=node-builder /backend/build/*.js /nakama/data/modules/build/
COPY local.yml /nakama/data/
docker-compose.yml
version: "3"
services:
postgres:
command: postgres -c shared_preload_libraries=pg_stat_statements -c pg_stat_statements.track=all
environment:
- POSTGRES_DB=nakama
- POSTGRES_PASSWORD=localdb
expose:
- "8080"
- "5432"
image: postgres:12.2-alpine
ports:
- "5432:5432"
- "8080:8080"
volumes:
- data:/var/lib/postgresql/data
nakama:
build: .
depends_on:
- postgres
entrypoint:
- "/bin/sh"
- "-ecx"
- >
/nakama/nakama migrate up --database.address postgres:localdb@postgres:5432/nakama &&
exec /nakama/nakama --config /nakama/data/local.yml --database.address postgres:localdb@postgres:5432/nakama
expose:
- "7349"
- "7350"
- "7351"
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:7350/"]
interval: 10s
timeout: 5s
retries: 5
links:
- "postgres:db"
ports:
- "7349:7349"
- "7350:7350"
- "7351:7351"
restart: unless-stopped
volumes:
data:
Does problem go away if you rename rollup.config.js to the rollup.config.mjs or add "type": "module" to your package.json as error suggests?
If I convert rollup.config.js to rollup.config.mjs it now gives below error:
[!] TypeError: Unknown file extension ".json" for /home/ashik/ts-project/package.json
OK, I’ll try to reproduce problem using files you provided and let you know.
1 Like
OK, I made it work, with these changes:
rename rollup.config.js to rollup.config.mjs
remove import pkg from "./package.json"; line from rollup.config.js as it is not used anyway.
Let me know if it fixes for you too, once confirmed we’ll update docs.
npm run build didn’t give any error this time. But after running “sudo docker compose up” it shows like below:
Finally it worked. But now I am having one more issue. I can’t register rpc functions.main.ts
let InitModule: nkruntime.InitModule = function (
ctx: nkruntime.Context,
logger: nkruntime.Logger,
nk: nkruntime.Nakama,
initializer: nkruntime.Initializer
) {
initializer.registerRpc("healthcheck", rpcHealthcheck);
logger.info("My Custom Module initialized.");
};
// Reference InitModule to avoid it getting removed on build
!InitModule && InitModule.bind(null);
healthcheck.ts
function rpcHealthcheck(
ctx: nkruntime.Context,
logger: nkruntime.Logger,
nk: nkruntime.Nakama,
payload: string
) {
logger.info("healthcheck rpc called");
return JSON.stringify({ succeed: true });
}
tsconfig.json
{
"compilerOptions": {
"noImplicitReturns": true,
"moduleResolution": "node",
"esModuleInterop": true,
"noUnusedLocals": true,
"removeComments": true,
"target": "es5",
"module": "ESNext",
"strict": false
},
"files": ["./node_modules/nakama-runtime/index.d.ts", "./healthcheck.ts"],
"include": ["src/**/*"],
"exclude": ["node_modules", "build"]
}
