Quickstart-ios: remote config fetch callback not called

[EthanDoan]

In my project, I try to fetch a value from remote config but the fetch callback was not called. Here is my code:

RCT_EXPORT_METHOD(getString:(NSString *)string :(RCTResponseSenderBlock)callback) {
  long expirationDuration = 3600;
  if (self.remoteConfig.configSettings.isDeveloperModeEnabled) {
    expirationDuration = 0;
  }

  [self.remoteConfig fetchWithExpirationDuration:expirationDuration completionHandler:^(FIRRemoteConfigFetchStatus status, NSError *error) {
    if (status == FIRRemoteConfigFetchStatusSuccess) {
      [self.remoteConfig activateFetched];
      NSString *result = self.remoteConfig[string].stringValue;
      callback(@[[NSNull null], result]);
    } else {
      callback(@[[NSNull null], [NSNull null]]);
    }
  }];
}

Please help, thanks!

[kroikie]

Hi @EthanDoan your call to fetchWithExpirationDuration looks good to me. However could you explain what is happening with NSString *result = self.remoteConfig[string].stringValue;. That is not a valid statement with the Remote Config SDK.

[EthanDoan]

@kroikie The statement is valid but I wrong put it there. But even if I remove it, the callback's still not called.

[morganchen12]

Can you set the log level to FIRLogLevelDebug and share the logs when this happens? Also, can you share a sample project that reproduces this?

[EthanDoan]

Here is the FIRLog:

 2018-03-30 14:54:01.674860+0700 FrogPlay[3676:158677] 4.10.1 - [Firebase/Analytics][I- 
 ACS031006] View controller already tracked. Class, ID: UIViewController, -3790160624073249039
 2018-03-30 14:54:02.225 [info][tid:com.facebook.react.JavaScript] Running application "FrogPlay" 
 with appParams: {"rootTag":1,"initialProps":{}}. __DEV__ === false, development-level warning are 
 OFF, performance optimizations are ON
 2018-03-30 14:54:02.225525+0700 FrogPlay[3676:158681] Running application "FrogPlay" with 
 appParams: {"rootTag":1,"initialProps":{}}. __DEV__ === false, development-level warning are OFF, 
 performance optimizations are ON
 2018-03-30 14:54:02.247631+0700 FrogPlay[3676:158662] 4.10.1 - [Firebase/InstanceID][I- 
 IID013010] InstanceID library version 2.0.9
 2018-03-30 14:54:02.280904+0700 FrogPlay[3676:158662] 4.10.1 - [Firebase/InstanceID][I- 
 IID015013] Successfully removed all IID tokens
 2018-03-30 14:54:02.281160+0700 FrogPlay[3676:158662] 4.10.1 - [Firebase/RemoteConfig][I- 
 RCN000024] Success to get device authentication ID: 4704593247591040516, security token: 
 7080383854754225082.
 2018-03-30 14:54:02.476601+0700 FrogPlay[3676:158677] 4.10.1 - [Firebase/Analytics][I- 
 ACS031006] View controller already tracked. Class, ID: UIViewController, -3790160624073249039

This is currently happen with my company project. I will try to provide a sample project soon.

[EthanDoan]

hi @morganchen12
Here is sample project for the issue.
https://github.com/EthanDoan/ios-remote-config-callback-not-called
When I try to create another app to work with same firebase account, remote config works perfectly. But in this sample, fetch callback was never called.
Please support, thank you!

[EthanDoan]

Problem solved.
Turning out that I forgot to add [FIRapp configure] in AppDelegate.m
Thanks