Mongoose findOneAndUpdate not working if I dont specify the field to update - mongodb

Question

I currently have the following mongoose function in a hapi.js api call
server.route({
method: "PUT",
path:"/api/blockinfo/{hash}",
handler: async (request, h) => {
try{
var jsonPayload = JSON.parse(request.payload)
console.log(jsonPayload)
var result = await BlockModel.findOneAndUpdate(request.params.hash, {$set: { height : jsonPayload[Object.keys(jsonPayload)[0]]}}, {new: true});
return h.response(result);
}catch{
return h.response(error).code(500);
}
}
})
Its goal is basically to update a value using a PUT. In the case above, it will update the field height, and it will work just fine.
But what if I want to update an arbitrary field?
For example my object format is the following:
{"_id":"5cca9f15b1b535292eb4e468", "hash":"d6e0fdb404cb9779a34894b4809f492f1390216ef9d2dc0f2ec91f95cbfa89c9", "height":301651, "size":883, "time":1556782336, "__v":0}
In the case above I updated the height value using the $set, but what if I decide to input 2 random fields to update, for example, size and time.
This would be my put in postman:
{
"size": 300,
"time": 2
}
Well obviously it wont work in the code above because those fields are missing in the set.
SO how do i make that set to recognize automatically whatever it needs to update?
I tried to simplify it with the following code but it wont update anything
server.route({
method: "PUT",
path:"/api/blockinfo/{hash}",
handler: async (request, h) => {
try{
var result = await BlockModel.findOneAndUpdate(request.params.hash, request.payload, {new: true});
return h.response(result);
}catch{
return h.response(error).code(500);
}
}
})
Schema
const BlockModel = Mongoose.model("blocks", {
hash: String,
height: Number,
size: Number,
time: Number
});

Answer 1

Problem is with your hash key. First parameter/argument in findOneAndUpdate function should be the key value pair. And here you are directly putting the key.
So it should be
handler: async (request, h) => {
try {
const { hash } = request.params
var result = await BlockModel.findOneAndUpdate({ hash }, request.payload, { new: true })
return h.response(result)
} catch (err) {
return h.response(error).code(500)
}
}
Update:
You are defining mongoose model in incorrect way. Schema is not just an object. It should be mongoose object. Something like this
const schema = new Mongoose.Schema({
hash: String,
height: Number,
size: Number,
time: Number
})
export default Mongoose.model("blocks", schema)

Answer 2

handler: async (request, h) => {
try{
var result = await BlockModel.findOneAndUpdate(request.params.hash, JSON.parse(request.payload ), {new: true});
return h.response(result);
}catch{
return h.response(error).code(500);
}
}
SInce we are updating a JSON, the payload must be in JSON format

Answer 3

You have not added $set in your simplified code, adding that it should work.
Send payload as an object with the required fields.
server.route({
method: "PUT",
path:"/api/blockinfo/{hash}",
handler: async (request, h) => {
try{
var result = await BlockModel.findOneAndUpdate(request.params.hash, { $set: request.payload } , {new: true});
return h.response(result);
}catch{
return h.response(error).code(500);
}
}
})