feat: Introduce subscription resolvers using Mongoose Watch

[nodkz]

Can we made it into the core of this tool by using Mongoose Watch

Something like this

UserMD.watch().on("change", (data) => {
    if (data.operationType === "insert") {
      console.log("User inserted: ", data.fullDocument);
    }
  
    if (data.operationType === "replace") {
      console.log("User updated: ", data.fullDocument);
    }
  
    if (data.operationType === "delete") {
      // Like here the user was deleted so it's time to detelet his or her information from all the groups.
      console.log("User deleted: ", data._id);
    }
 });

This is the most common Mongo DB and GraphQL issue so if this tool solve it like it solved the query long time making then this tool will get a boost up.

Originally posted by @maheraldous in #409 (comment)