fromPromise initialValue from previous fromPromise about mobx-utils HOT 4 CLOSED

If think the above pattern is probably not what you want, as this.data.valuemight not have been reseolved yet, probably you need:

this.data = fromPromise(this.data.promise.then(() => somePromise())) ?

from mobx-utils.

But that will not set the value until somePromise resolves. It will reset to undefined, right? I would like to keep the the previous data.value when calling getData again and update with new value when promise resolves, so only data.state will change in between.

from mobx-utils.

In that case just store the value you want to keep in another observable, returning that until the promise resolves? e.g. simply do:

@action getData() {
  somePromise().then(data => this.data = data)
}

from mobx-utils.

yes thats how looked my first implementation

getData(){
    this.setState({data:{data:[],isLoading:true}})
    somePromise().then(data => {
         this.setState({data:{data,isLoading:false}})
    })
}

I thought fromPromise would come handy because it also holds state of the promise, anyway thanks for the suggestions

from mobx-utils.