working with Node js Await/Async functions

Question

This is my axios Request to call the API.

export function axiosGet (url) {
      return opsutils.get(url)
        .then(function (response) {
            return response.data.data;
        })
        .catch(function (error) {
            return 'An error occured..' + error;
        })
    }

From here i'm calling it asynchrously

async getDirList(data){
      this.domainDir=data.domain_name
      var apiurl="some URL"
      var stat = await axiosGet(apiurl)
      if (status){
        this.domainlog= stat
    }

From here i'm calling the async func defined above

Notify(data){
    var filelist = this.getDirList(data)
    if(filelist){
           var status =  createNotification(data.domain_name,message_stripped,'Degrading web server performance')
}

The ideal should be like this that it should go forward only after the promise is resolved ,right now the var filelist got empty. How do i get to solve this problem ?Thanks in advance

Don't return a plain string in case of an error

Bergi
– Bergi

2018-11-01 19:22:50 +00:00
Commented Nov 1, 2018 at 19:22 — Bergi
– Bergi, Commented Nov 1, 2018 at 19:22

Blue · Accepted Answer · 2018-11-01 19:15:31Z

4

The problem is this.getDirList(data) is not being accessed asynchronously as well. Remember, because that is async now, it's returning a promise, so you either need to chain it with .then():

Notify(data){
    var filelist = this.getDirList(data)
        .then(data => {
            var status = createNotification(data.domain_name,message_stripped,'Degrading web server performance')
        });

}

Or turn Notify() into an async function as well:

async Notify(data){
    var filelist = await this.getDirList(data);
    if(filelist){
           var status =  createNotification(data.domain_name,message_stripped,'Degrading web server performance')
}

Additionally, make sure you're actually returning data from getDirList so you can utilize the return value when you await it.

answered Nov 1, 2018 at 19:15

Blue

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1 Comment

Blue Over a year ago

@Rohit: There's a good tutorial here that I recommend checking out, if you're new to promises/tasks.

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