Firebase Remote Config: How to get all config in Map<String, String>-CodePudding

Is there a way to get all the configs in String data type? There is a public method getAll() which is a Map<String, FirebaseRemoteConfigValue> but the value is an interface.

@NonNull
  public Map<String, FirebaseRemoteConfigValue> getAll() {
    return getHandler.getAll();
  }

It is guaranteed in our setup that the config values are in String data type.

CodePudding user response：

FirebaseRemoteConfig stores your data as json in your application's files directory. And these values don't have a data type at the moment. You may convert any FirebaseRemoteConfigValue to string but not Boolean or Long.

{
  "configs_key": {
    "hello": "world",
    "flag": "true",
    "isOpen": "true or false :)", // may be string but not bool
  },
  // ...
}

We can see that FirebaseRemoteConfigValue interface always return a string from a value but may throw an IllegalArgumentException for other primitive data types.

interface FirebaseRemoteConfigValue {
  @NonNull String asString();

  boolean asBoolean() throws IllegalArgumentException;
  // ...
}

There may be a tricky solution. If you can add a prefix to your remote config values, you may get them by a specified prefix. This trick requires the developer to set a prefix to all string values. (May not suit to everyone)

// "str_salutation": "hello world", "str_language": "kotlin", "isSomething": "false"
config.getKeysByPrefix("str_").forEach { key ->
  val value = config.getString(key)
  println("key = $key, value=$value")
}

Hope it helps.

CodePudding user response：

So far this is what I ended up, considering that all configuration value for this app is data type of String.

// Convert Firebase Remote Config values to String
 val map = remoteConfig.all.mapValues { it.value.asString() }