Save an array of a model in mongodb using mongoose and nodejs

Question

I am using nodejs and mongoose to save data in mongodb. I have a schema like this. I want to save an array which has these objects as array elements

const gatePassSchema = new mongoose.Schema({
    sno: {
        type: String,
        required: true
    },
    modeOfTransport: {
        type: String,
        required: true
    },
    description: {
        type: String,
        required: true
    },
    quantity: {
        type: Number,
        required: true
    },
    unit: {
        type: String,
        required: true
    },
    issuedTo: {
        type: String,
        required: true
    },
    dateOfReturn: {
        type: Date,
        required: true
    },
    from: {
        type: String,
        required: true
    },
    to: {
        type: String,
        required: true
    },
    reason: {
        type: String,
        required: true
    },
    remark: {
        type: String,
        required: true
    },
    incomingRef: {
        type: String,
        required: true
    }

})

The request body coming to the server looks like this:

 [ { sno: '1',
    modeOfTransport: 'oijoi',
    description: 'oiouiu',
    quantity: 5,
    unit: 'number',
    issuedTo: 'giug',
    dateOfReturn: '2020-07-12T18:30:00.000Z',
    from: 'iuhiu',
    to: 'hiuhi',
    reason: 'hiu',
    remark: 'ih',
    incomingRef: 'iuhilk' },
  { sno: '2',
    modeOfTransport: 'avvss',
    description: 'uihiuhiu',
    quantity: 6,
    unit: 'packet',
    issuedTo: 'giukh',
    dateOfReturn: '2020-07-05T18:30:00.000Z',
    from: 'iuhi',
    to: 'uihnvn',
    reason: 'lop',
    remark: 'ytfyvh',
    incomingRef: 'psd' } ]

I want it to save this data format: [{gatePassSchema},{gatePassSchema}....] Most implementations I found online show how to turn an element in the model into an array, but what if I want to use the whole model as an array?

Answer 1

First you will need to convert your schema into a model:

var GatePass = mongoose.model('GatePass', gatePassSchema);

after that you just need to run array.map on your array and create instances of your model.

Something like this:

yourArray.map(element => new GatePass(element));

This should return an array where your JSON object should be converted into mongoose models. Is this what you needed?

More on array map:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map