expo-esc-pos-utils/src/ExpoEscPosUtilsModule.ts

Expo module for ESC/POS printer utilities, supporting image printing and text formatting

import { NativeModule, requireNativeModule } from 'expo';

import { ExpoEscPosUtilsModuleEvents } from './ExpoEscPosUtils.types';

declare class ExpoEscPosUtilsModule extends NativeModule<ExpoEscPosUtilsModuleEvents> {
  PI: number;
  hello(): string;
  setValueAsync(value: string): Promise<void>;
  convertBase64ToGsV0Data(base64: string, width: number): Promise<number[]>;
}

// This call loads the native module object from the JSI.
export default requireNativeModule<ExpoEscPosUtilsModule>('ExpoEscPosUtils');