Get keys of a Typescript interface as array of strings

Question

I\'ve a lot of tables in Lovefield and their respective Interfaces for what columns they have.
Example:

export interface IMyTable {
  id: number;
  t         


        

Answer 1

This was a tough one! Thank you, everyone, for your assistance.

My need was to get keys of an interface as an array of strings to simplify mocha/chai scripting. Not concerned about using in the app (yet), so didn't need the ts files to be created. Thanks to ford04 for the assistance, his solution above was a huge help and it works perfectly, NO compiler hacks. Here's the modified code:

Option 2: Code generator based on TS compiler API (ts-morph)

Node Module

npm install --save-dev ts-morph

keys.ts

NOTE: this assumes all ts files are located in the root of ./src and there are no subfolders, adjust accordingly

import {
  Project,
  VariableDeclarationKind,
  InterfaceDeclaration,
} from "ts-morph";

// initName is name of the interface file below the root, ./src is considered the root
const Keys = (intName: string): string[] => {
  const project = new Project();
  const sourceFile = project.addSourceFileAtPath(`./src/${intName}.ts`);
  const node = sourceFile.getInterface(intName)!;
  const allKeys = node.getProperties().map((p) => p.getName());

  return allKeys;
};

export default Keys;

usage

import keys from "./keys";

const myKeys = keys("MyInterface") //ts file name without extension

console.log(myKeys)