I have an api using express, mongodb and I use AJV validation to validate the incoming requests.

//JSONSchema
var recordJsonSchema = {
     type: "object",
     properties: {
         name: { type: "string" },
         idNumber: { type: "number" },
         content: { type: "string" }
     },
     required: ['name','idNumber']
}

And I'd use this JSON schema to validate incoming requests like so.

app.post('/record', (req,res) => {
   let errors = ajv.inspect(req.body, recordJsonSchema)
   return errors ? res.send(errors) : res.send(this.handler(req));
})

This works fine and is very fast. I also like JsonSchema since it follows OpenAPI standards.

Unfortunately, in order to read/write to mongo via mongoose I also need to create a MongoSchema for Record. They are very similar but a bit different in how they handle required fields etc.

var recordSchema = new Schema({
   name: { type: "string", required: true },
   idNumber: { type: "number", required: true },
   content: { type: "string" }
})

So for my model of Record I have two schemas now. One for JSONschema and one for handling Mongo read/writes.

I'm looking for a way to cut MongoSchema, any suggestions?