Thanks Christopher and Emanuele.
I do not want to call cb after saving, mean that I just want to loop via
list of contents, then save them, thats all.
*async.each(contents, function(content, cb) {
content.save(function(err, resp) {*
* /*DO NOT NEE TO CALL cb HERE*/ cb(err); //lets hope err is null,
but if it's not null, the err will get propagated through to the final
"errors" param below.*
* });}, function(errors) { res.status.(200).. ///OK});*
Is it possible to apply async without cb param?
On Tue, Feb 23, 2016 at 1:44 PM, Christopher Mina <
[email protected]> wrote:
> To be clear about Emanuele's response, the async API should look like this.
>
> async.each(contents, function(content, cb) {
> content.save(function(err, resp) {
> cb(err); //lets hope err is null, but if it's not null, the err
> will get propagated through to the final "errors" param below.
> });
> }, function(errors) {
> res.status.(200).. ///OK
> });
>
>
> -Chris
>
> On Monday, February 22, 2016 at 10:01:38 AM UTC-7, Emanuele DelBono wrote:
>>
>> Probably you are using async.js in a wrong way. Do you call the "done
>> callback" on after every save of the chest? The callback for async.each
>> received 2 parameters, the item and the done callback.
>>
>>
>> On Mon, Feb 22, 2016 at 3:55 AM, Duy Nguyen <[email protected]> wrote:
>>
>>> Hi,
>>>
>>> I want to my code work as below:
>>> 1. save Chest object to db
>>> 2. Then save all contents belong to this chest to db (have logic to add
>>> new filed to content before saving)
>>> 3. Then return response with chest + new contents info
>>>
>>> But the real code does not work as I expected, the code is:
>>>
>>> chestApi = createChestWithContents{
>>>> var chest = req.body;
>>>> var contents = req.body.contents;
>>>> chest.save(function(err, chest) {
>>>> async.each(contents, function(content) {
>>>> content.save()....
>>>> }, function(done) {
>>>> return res.status.(200).. ///OK
>>>> });
>>>> });
>>>> }
>>>
>>>
>>> When I use postman to test, the method end up without any response
>>> returned due to asynchronous methods(even when I used async to wait till
>>> the loop finish), cannot figure out how to do those stuff synchronously.
>>> --
>>> Nguyen Hai Duy
>>> Mobile : 0914 72 1900
>>> Skype: nguyenhd2107
>>>
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>>
>>
>>
>> --
>> ema
>> http://ema.codiceplastico.com <http://blog.codiceplastico.com/ema>
>>
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--
Nguyen Hai Duy
Mobile : 0914 72 1900
Skype: nguyenhd2107
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