Hello there. I’m right now build an app to get a data from JSON API from Wordpress Blog based… Yesterday I saw this for callthe API… Using promises like there… Now, when I’m using the code for load a “post”, again, using promises. I got error Error In Build Pages I’m already using the Loading to …

a little hint: you do not have to create your promise on your own. You can add the additional toPromise function to an Observable, so you can call .toPromise() after your .map.

Can you give me the example of the code ?? I’m still new in the Ionic 2 :smiley: Thanks *note : I can write that code because I see the tutorial from Ionic 2 Blog :grin:

you need to import the toPromise function: import 'rxjs/add/operator/toPromise'; then you can to something like this return this.http.get(this.heroesUrl) .toPromise() .then(this.extractData)

It’s still give me error sir… [image]

if you read the error you can find: TypeError: self.context.post So i think you are using this.post somewhere, where it is not defined. Maybe in your loadPost function

All right… But, I can get the Output of the data… Here’s the loadPost code loadPost(){ this.postService.loadPost(this.id) .then(data => { this.post = data; //and this is the post variable console.log(this.post); //I can see the post in here this.hideLoading(); }); } Here’…

I’m little confused with the promises and the async data… Because it can show the form even when the data is not ready (since it using the async method) But, I don’t know the alternative of this “async” way… Anyway… Thanks for giving a info about toPromise But I hope I can stcik to the manual promi…

sry i meant the this.post in your service function [image] MacG: this.postService.loadPost(this.id) and there is no alternative to async handling of request… because request are async ^^

Did you mean this.post in my service not get the data ?? I don’t think so, because I can show it from this code in my post.ts file loadPost(){ this.postService.loadPost(this.id) .then(data => { this.post = data; //and this is the post variable console.log(this.post); //I can see …

Here is the little proof that my service and the controller both get the data ^^ [image] It can be loaded because I’m not using {{post.post.content}} on my post.html ^^

Promises break the build of page

Ionic Framework ionic-v3

MacG September 21, 2016, 6:55am 5

It’s still give me error sir…

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Promises break the build of page

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