Question 190037 in Javascript Question posted in
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Javascript – mongoose.createConnection() – model is not a function

I’m trying create multiple connections to my mongodb Cloud.
The old code for single connection with mongoose.connect() is still fine, but when I changed to mongoose.createConnection() for multiple connections, I got this error:

TypeError: conn1.model is not a function

Edited: I’ve removed .asPromise() behind mongoose.createConnection(process.env.MONGO_URI) but it is still the same problem

My code:

const mongoose = require("mongoose");
const Schema = mongoose.Schema;
require("dotenv").config();

const conn1 = mongoose.createConnection(process.env.MONGO_URI)
const UserSchema = new Schema({
    username: {
        type: String,
        required: true,
        unique: true,
    },
    email: {
        type: String,
        required: true,
        uniquie: true,
        lowercase: true,
    },
});

module.exports = conn1.model("users", UserSchema);
Tags:

2

Answers


  1. 0

    You can try using the then() method in handling successful connections to your MongoDB database. Also use handle errors

    const mongoose = require("mongoose");
const Schema = mongoose.Schema;
require("dotenv").config();

const conn1 = mongoose.createConnection(process.env.MONGO_URI);
conn1.then(() => {
    const UserSchema = new Schema({
        username: {
            type: String,
            required: true,
            unique: true,
        },
        email: {
            type: String,
            required: true,
            unique: true,
            lowercase: true,
        },
    });

    module.exports = conn1.model("users", UserSchema);
}).catch((error) => {
    console.error("Connection error:", error);
});
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  2. 0

    try remove .asPromise(. I think it is usefull

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