[Solved] angular 6 wait post response

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Using async/await is perfect for your situation. It will help you to make your code more readable and make abstraction of the async part thanks to the await keyword

aync post(){

    const res1 = await this._service1.save(this.data1).toPromise();
    const res2 = await this._service2.save(res1).toPromise();
    console.log('here is my data 2 ' + res2);

    return 'what you want, can be res1 or res2 or a string';
}

How to call it ?

this.myService.post().then( (whatYouWanted) => {
  console.log(whatYouWanted); // what you want, can be res1 or res2 or a string
});

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solved angular 6 wait post response