mongoose Model.create hangs with no error messages

Question

I'm have a Referral model defined and I'm trying to create an instance of this model. However when I do so, the request hangs indefinitely. When I console.log(Referral) the object shows in console fine.

Here's my code:

                    // TODO: this hangs?
                    console.log("creating referral...");
                    const referral = await Referral.create({
                        referrer: referrer.email,
                        referee: user.email,
                        amount: 1000,
                    });
                    console.log("referral created");

Notice that referral created is never actually printed to the console!

Here's the model:

const mongoose = require("mongoose");
const crypto = require("crypto");

const schema = new mongoose.Schema(
    {
        referrer: {
            type: mongoose.Types.ObjectId,
            required: true,
        },

        referee: {
            type: mongoose.Types.ObjectId,
            required: true,
        },

        // Number of cents, 1000 = $10
        amount: {
            type: Number,
            required: true,
            min: 0,
        },
    },
    { timestamps: true }
);

// A user can't refer the same user twice
schema.index({ referrer: 1, referee: 1 }, { unique: true });

module.exports = mongoose.model("Referral", schema);

After removing the schema.index line, there was no change. I've also tried checking if I'm using connectionOpen, with mongoose, but I'm not.

Answer 1

It turns out the problem was that I migrated the Referral model to use the type of mongoose.Types.ObjectId rather than string. But I kept trying to pass referrer.email as the argument for those fields.

After changing my code like so, it no longer hangs.

                    const referral = await Referral.create({
                        referrer: referrer,
                        referee: user,
                        amount: 1000,
                    });