CODEWITHSUNDEEP
javascriptnode.jspromise
Sarus Crane
Sarus Crane

Reputation: 336

Node js execute another function after complete multiple function in loop node js

My code is below-:

function get_btc(address) {
    address_transaction(address, user_id, coin_key, deposite_txn_fee, function (callback) {
        for (var j = 0; j < callback.response.data.txs.length; j++) {
            let user_id = callback.user_id;
            //some code//
        }
    });
}

get_label_info(function (err, data) {
    var promise = [];
    for (var i = 0; i < data.length; i++) {
        let address = data[i].address;
        var test_function = function (done) {
            deposite_model.get_coin_info(function (err, data1) {
                var coin_name = data1[0].coin_code;
                const return_functions = get_switch(coin_name);
                if (return_functions) {
                    obj[return_functions](address);
                }
                done(err, data1);
            });
        };
        promise.push(test_function);
    }
    sample();
});

function sample() {
    console.log('all functions has been completed');
}

By the help of above mentioned code i want to excecute all_completed loop when all functions has been completly done. At the initial start get_label_info function is excuted then controller go on to get_btc function.

Please help me how could i run all_completed functions after all functions completed run.

Upvotes: 0

Views: 137

Answers (1)

Rahul Sharma
Rahul Sharma

Reputation: 10071

Try this,

Define test_function outside for loop, It's not the good approach to declare inside the loop.

var test_function = function (address) {
    return new Promise((resolve, reject) => {
        deposite_model.get_coin_info(function (err, data1) {
            if (err)
                return reject(err);
            var coin_name = data1[0].coin_code;
            const return_functions = get_switch(coin_name);
            if (return_functions) {
                obj[return_functions](address);
            }
            return resolve(data1);
        })
    })
}

get_label_info(function (err, data) {
    var promises = [];
    for (var i = 0; i < data.length; i++) {
        promises.push(test_function(address));
    }

    Promise.all(promises).then((data) => {
        sample();
    })
});


function sample() {
    console.log('all functions has been completed');
}

Upvotes: 1

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