Firestore设置在第一次尝试时失败，但在第二次尝试时有效

Question

I have a simple firestore set operation like so

var docRef = firebase.firestore().collection('sessions').doc(this.state.userID);
docRef.set({
   Name: seshName,
   Type: theType,
}).then(()=> {
   resolve(true);
});

but for some reason, it always fails on the first try after app install, but then subsequent attempts are fast and smooth.

Anyone encounter similar experiences? Any clues?

Answer 1

Thanks for trying to help. I found the cause. Adding .catch does not help as it just hangs as usual without any output.

It seems that Firestore only allows 1 connection at a time? This issue only happens if I do a DB action right before this .set operation, it seems that the previous DB action isn't complete yet.