server.js

import Express from "express";

import { createMerchant } from "paths";

const app = Express();

app.post("/createMerchant", createMerchant);

tookan-createMerchant-request.js

import { validateReqParams, toSnakeCase } from "utils";
import { createMerchant as createTookanMerchant } from "utils/tookan";

export const createMerchant = async (req, res) => {
  const params = req.body;
  if (validateReqParams(params, "createMerchant")) {
    try {
      const paramsToSend = toSnakeCase(params);

      const createdMerchant = await createTookanMerchant(paramsToSend);
      res.status(200).json(createdMerchant);
    } catch (error) {
      console.log(error);
      res.status(100).json({
        code: "502 Bad Gateway",
        message: "Something unexpected happened, we're already on it :)"
      });
    }
  } else {
    res.status(400).json({
      code: "400 Bad request",
      message: "There is something wrong. You're missing an argument or parameter."
    });
  }
};