how to push the object keys and values to array

Question

I need to push the key value pair to new array and should build the mongodb $match query.

const queryFormat = (payload) => {
    delete payload.userEventId
    var query = {}
     var res = []
    for(key in payload) {
        if(typeof(payload[key])) {
       res.push({ [key]: payload[key] })
        }
        else {
            res.push({"$in" :{ [key]: payload[key] }})
        }
    }
    console.log(res[3])
    query['$match'] = {"$and" :res}
    console.log(query)    
}


const payload = {
    id :1,
    name : 'Alfred',
    location : 'moon',
    values : [{name: 'u',age:9}]
}
queryFormat(payload)

expected output

{"$match":{"$and":[{id:1},{name:"Alfred"},{location:"moon"},{"values":{"$in":[{name:"u"},{age: 9}]} }]}}

output I got

{"$match":{"$and":[{id:1},{name:"Alfred"},{location:"moon"},{"values":{"$in":[{name:"u",age: 9}]} }]}}

How to deal with it Thanks!!

Anurag Srivastava · Accepted Answer · 2021-02-16 07:50:15Z

1

Currently you are specifying the key as "key"

Use [] to specify that you need the value of key as the key

const queryFormat = (payload) => {
    delete payload.userEventId
    var query = {}
     var res = []
    for(key in payload) {
       res.push({ [key]: payload[key] })
    }
    query['$match'] = {"$and" :res}
    console.log(query)    
}


const payload = {
    id :1,
    name : 'Alfred',
    location : 'moon'
}
queryFormat(payload)

answered Feb 16, 2021 at 7:50

Anurag Srivastava

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