如何使用 angular 从 firebase 获取服务器时间？

Question

I am working with firebase and angular application. I was working with new Date() , but now our requirement is to change this function to server time. But I have no idea how can i get server time from firebase.

Code

I save time in firebase like this.

 this.projectForm.value.createdAt = firebase.database.ServerValue.TIMESTAMP;
 this.firestore.collection('projects').add(this.projectForm.value);

But no idea how can I get the value

this.firestore.collection('projects').doc(this.projectId).get().subscribe(snapshot => {
    const project: any = snapshot.data();
});

Any solution appreciated!

Answer 1

I hope I'm not missing out on something here, I'm not sure what exactly the problem is. What exactly are you trying to do with the project?

You are declaring a local variable in the

this.firestore.collection('projects').doc(this.projectId).get().subscribe(snapshot => {
    const project: any = snapshot.data();
});

snippet.

Therefore you can only access the project in this codeblock.

Try

this.firestore.collection('projects').doc(this.projectId).get().subscribe(snapshot => {
    const project: any = snapshot.data();
    console.log('CreatedAt', project.createdAt);
});

And check the console for output.

PS: You are using TypeScript you should define a type for Project . Using any type is very bad practice.