"Cannot use import statement outside a module" error when using ontology-ts-sdk (@vespaiach/axios-fetch-adapter/index.js)

[sinanouri]

When attempting to use the ontology-ts-sdk library in a Node.js environment, I encountered the error "Cannot use import statement outside a module." This error seems to be related to the library's internal usage of ES module syntax (import statements) conflicting with the CommonJS syntax used in Node.js environments.

Steps to Reproduce:

1. Include the following code in app.js:

const {
  Account,
  Crypto,
  OntAssetTxBuilder,
  TransactionBuilder,
  RestClient,
  CONST,
} = require("ontology-ts-sdk");
console.log("ontology sdk");

2. Install the ontology-ts-sdk library via npm:

npm install ontology-ts-sdk

3. Run the application:

node app.js

Expected Behavior:
The application should run without errors, and the message "ontology sdk" should be logged to the console.

Actual Behavior:
The application throws a SyntaxError: "Cannot use import statement outside a module" at @vespaiach/axios-fetch-adapter/index.js.

Environment:

• Node.js version: v18.19.0
• ontology-ts-sdk version: 2.0.3

Package.json:

{
  "dependencies": {
    "ontology-ts-sdk": "^2.0.3"
  }
}

The Error:

/node_modules/@vespaiach/axios-fetch-adapter/index.js:1
import axios from 'axios';
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at internalCompileFunction (node:internal/vm:73:18)
    at wrapSafe (node:internal/modules/cjs/loader:1274:20)
    at Module._compile (node:internal/modules/cjs/loader:1320:27)
    at Module._extensions..js (node:internal/modules/cjs/loader:1414:10)
    at Module.load (node:internal/modules/cjs/loader:1197:32)
    at Module._load (node:internal/modules/cjs/loader:1013:12)
    at Module.require (node:internal/modules/cjs/loader:1225:19)
    at require (node:internal/modules/helpers:177:18)
    at Object.<anonymous> (/node_modules/ontology-ts-sdk/lib/index.js:1:2593)
    at r (/node_modules/ontology-ts-sdk/lib/index.js:1:124)

Node.js v18.19.0