Node.js - Joi schema: Check req.value & ip not working - node.js

Question

I have this joi schema to validate email and password that was sent via body as json. In addition I now want to check the ip address. I tried it like below but I get this:
{
"isJoi": true,
"name": "ValidationError",
"details": [
{
"message": "\"ip\" is required",
"path": [
"ip"
],
"type": "any.required",
"context": {
"key": "ip",
"label": "ip"
}
}
],
"_object": {
"email": "loremlipsum02#abc.at",
"password": "kyuser2923?"
}
}
Here my joi schema in routehelpers.js
const Joi = require('joi');
module.exports = {
validateSignup: (schema) => {
return (req, res, next) => {
const result = Joi.validate(req.body, schema);
if (result.error) {
return res.status(400).json(result.error);
}
if (!req.value) { req.value = {}; }
req.value['body']= result.value;
next();
}
},
schemas: {
signupSchema: Joi.object().keys({
email: Joi.string().email().required(),
password: Joi.string().required(),
ip: Joi.string().ip({
version: [
'ipv4',
'ipv6'
],
cidr: 'required'
}).required()
})
}
}
When I insert in my controller:
const curIP = req.ip;
console.log('IP: '+curIP);
I do get the ip in the console:
Server running at http://127.0.0.1:4002/
IP: 127.0.0.1
But how in addition can I validate the ip from the server requesting a signup?
I suppose it is because it is checking everything in req.value.body . But how do I need to alter validateSignup: (schema) to also check the ip that is requesting signup?

Answer 1

Looks like you are trying to match ip property in body while it's a property of req object.
Try:
const result = Joi.validate(Object.assign(req.body, { ip: req.ip }), schema);
Although I think better approach would be using a library like proxy-addr. That is going to extract correct client IP even when your server runs behind a reverse proxy.