Method not allowed with method POST

Hello, i need your help!

I have problem with the api, i use register like this

//------------------------------------------------------- index.js
const api = require('lambda-api')({ version: 'v1.0', base: 'v1' });
api.register(require('./routes'), { prefix: '/bot' });
//------------------------------------------------------- 

i not have problem with the method get, my problem are the methods POST, i proof the two forms, but any working

//------------------------------------------------------- routes.js
module.exports = (api, opts) => {
  api.get('/list', bot.list);
  api.post('/selector', bot.selector);
  api.METHOD('post','/validator_response', bot.validator_response);
  api.post('/hermes', bot.hermes);
};
//-------------------------------------------------------

Always i have the same response:

Response
{
  "statusCode": 200,
  "headers": {
    "content-type": "application/json"
  },
  "body": "{\"error\":\"Method not allowed\"}"
}