Back4App and Virgil server

main.js

const axios = require("axios");
const { JwtGenerator } = require("virgil-sdk");
const { VirgilCrypto, VirgilAccessTokenSigner } = require("virgil-crypto");
const crypto = new VirgilCrypto();

const APP_ID = "YOUR_VIRGIL_APP_ID";
const API_KEY = "YOUR_VIRGIL_API_KEY";
const API_KEY_ID = "YOUR_VIRGIL_APP_ID";
const PARSE_APP_ID = "YOUR_PARSE_APP_ID";
const PARSE_REST_API_KEY = "YOUR_PARSE_REST_API_KEY";

const generator = new JwtGenerator({
    appId: APP_ID,
    apiKeyId: API_KEY_ID,
    apiKey: crypto.importPrivateKey(API_KEY),
    accessTokenSigner: new VirgilAccessTokenSigner(crypto)
});

Parse.Cloud.define("virgil-jwt", function(request, response) {
    const { sessionToken } = request.params;
    return axios
        .get("https://parseapi.back4app.com/users/me", {
            headers: {
                "X-Parse-Application-Id": PARSE_APP_ID,
                "X-Parse-REST-API-Key": PARSE_REST_API_KEY,
                "X-Parse-Session-Token": sessionToken
            }
        })
        .then(resp => {
            const identity = resp.data.objectId;
            const virgilJwtToken = generator.generateToken(identity);
            response.success({ token: virgilJwtToken.toString() });
        })
        .catch(error => {
            response.error(error.message);
        });
});

package.json

{
  "dependencies": {
    "axios": "^0.18.0",
    "virgil-crypto": "^3.2.1",
    "virgil-sdk": "^5.2.2"
  }
}