Running Typescript code from Python

readme.md

Running Typescript code from Python

✅ Requires node installation for NPX command
✅ Requires package.json project wrapping typescript code

Pros

• Typescript
• Use python for your ipython notebooks
• Expandable formula to other languages with cli communication
• Error message passthough

Cons

• CLI overhead
• More complex interactions may call for a web server w/ APIs instead

ipynb_code.py

import subprocess
import json

script_name = "typescript_code.ts"
json_data = json.dumps({"key": "value"})
try:
    result = subprocess.run(
        ["npx", "tsx", "getPageMd.ts", json_data],
        cwd=os.path.join(os.getcwd(), "../other_directory/cmd_scripts/"),
        capture_output=True,
        text=True,
        check=True,
    )
    parsed_output = json.loads(result.stdout)
except subprocess.CalledProcessError as e:
    print(e.stderr)
    exit(2)
print(parsed_output["value"])

typescript_code.ts

import * as process from "process";

type JsonInput = {
  input: string,
};
type JsonOutput = {
  output: string;
};

const jsonString = process.argv[2];
const inputData = JSON.parse(jsonString) as JsonInput;
const value: string = inputData.input;

(async () => {
  const output: JsonOutput = { output: await yourLibrary(value) };
  process.stdout.write(JSON.stringify(output));
  process.exit();
})();