I try to initialize database base via typescript.
my ts is like:
import { User, UserRole } from '../entity/User';
import crypto from 'crypto';
import {dbManager, pwhash } from '..';
async function inituser()
{
const user = new User();
user.email = '[email protected]';
user.own_organization = []
user.salt = crypto.randomBytes(16).toString('hex');
user.password = pwhash("password", user.salt);
user.role = UserRole.admin;
await dbManager.save(user);
const duser = await dbManager.findOne(User);
return duser;
}
const duser = inituser();
console.log("Loaded users: ", duser);
when I try to run the script by ts-node like:
npx ts-node db/initializers/inituser.ts
there is error for:
SyntaxError: Cannot use import statement outside a module
at wrapSafe (internal/modules/cjs/loader.js:1167:16)
at Module._compile (internal/modules/cjs/loader.js:1215:27)
at Module.m._compile (/usr/lib/node_modules/ts-node/src/index.ts:858:23)
at Module._extensions..js (internal/modules/cjs/loader.js:1272:10)
at Object.require.extensions.<computed> [as .ts] (/usr/lib/node_modules/ts-node/src/index.ts:861:12)
at Module.load (internal/modules/cjs/loader.js:1100:32)
at Function.Module._load (internal/modules/cjs/loader.js:962:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
at main (/usr/lib/node_modules/ts-node/src/bin.ts:227:14)
at Object.<anonymous> (/usr/lib/node_modules/ts-node/src/bin.ts:513:3)
root@MEDAIHILW237:/mnt/c/workgit/projeny# ts-node db/initializers/inituser.ts
TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /mnt/c/workgit/projeny/db/initializers/inituser.ts
at Loader.defaultGetFormat [as _getFormat] (internal/modules/esm/get_format.js:65:15)
at Loader.getFormat (internal/modules/esm/loader.js:101:42)
at Loader.getModuleJob (internal/modules/esm/loader.js:230:31)
at Loader.import (internal/modules/esm/loader.js:164:17)
at Object.loadESM (internal/process/esm_loader.js:68:5)
root@MEDAIHILW237:/mnt/c/workgit/projeny# ts-node db/initializers/inituser
TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /mnt/c/workgit/projeny/db/initializers/inituser.ts
at Loader.defaultGetFormat [as _getFormat] (internal/modules/esm/get_format.js:65:15)
at Loader.getFormat (internal/modules/esm/loader.js:101:42)
at Loader.getModuleJob (internal/modules/esm/loader.js:230:31)
at Loader.import (internal/modules/esm/loader.js:164:17)
at Object.loadESM (internal/process/esm_loader.js:68:5)
I add "type": "module" in package.json file.
{
"name": "typescript-test",
"version": "1.0.0",
"type": "module",
...
}
for overcome the error of
(node:3854) 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)
We can use the ts-node package to execute TypeScript files from the command line. Install it with npm or other package manager. After that, simply execute the TypeScript files with the command: ts-node filename.
ts-node supports a variety of options which can be specified via tsconfig.
Did you know that you can use Typescript "natively" with any Node.
A module can be created using the keyword export and a module can be used in another module using the keyword import . In TypeScript, files containing a top-level export or import are considered modules. For example, we can make the above files as modules as below. console.
The Error Warning: To load an ES module, set "type": "module" in the package.json or
is caused by the following Bug in ts-node: https://github.com/TypeStrong/ts-node/issues/935
The Bug is closed, and there is a proposal to solve it, but it is still open: https://github.com/TypeStrong/ts-node/issues/1007
I don't need "type": "module"
in package.json
.
In tsconfig.json
, I'm using using "module": "commonjs"
instead of "module": "es6",
.
I noted this as technical debt pending that ts-node issue #1007 is resolved.
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