Script for automatic JSON conversion with access to Cloud Yandex

You need to write code, preferably in node.js, that will execute the following sequence of commands:

- get the key from a json file pre-placed in a local directory
- translate the phrase by referring to cloud.yandex.ru with a well-known token
- get the result, write in a similar key in another json
- write the translated json to the local directory

Please write how long it will take to write a script and an hourly rate. Thank you!