Use axios, fix transliteration bug, added basic test

Author: vitalikmay

jest.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  testMatch: ['**/*.test.ts'],
+  moduleFileExtensions: ['ts', 'js'],
+  setupFilesAfterEnv: ["<rootDir>/jest.setup.js"]
+};

jest.setup.js

@@ -0,0 +1 @@
+require('jest-fetch-mock').enableMocks();