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index.js
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index.js
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'use strict'
const Joi = require('joi'),
_ = require('underscore'),
camelize = require('camelize');
const _check = (schema) => {
const env = process.env,
envKeys = Object.keys(schema),
envCfg = _.pick(env, envKeys);
let validatedCfg = {};
envKeys.forEach((k) => {
const singleVarSchema = Joi.object({
[k]: schema[k]
});
const singleVarCfg = {
[k]: envCfg[k]
};
let result = singleVarSchema.validate(singleVarCfg);
if (result.error) {
throw new Error("Environment var validation exception: " + result.error);
}
validatedCfg = { ...validatedCfg, ...result.value }
})
let formattedCfg = {};
envKeys.forEach((k, v) => {
formattedCfg[camelize(k.toLowerCase())] = validatedCfg[k];
});
return formattedCfg
}
module.exports = _check;