Opening realm with sync enabled fails with empty string partition value

[sync-by-unito]

When I try to open a realm with sync enabled using a partition value of "" (empty string), I get the following error: "partitionValue of type 'string' may not be an empty string". It looks like this was added in https://github.com/realm/realm-js/pull/3205. The sync server does not impose this restriction so I don't think this check should be enforced by the client.

The check which leads to the exception is https://github.com/realm/realm-js/blob/master/src/js_sync.hpp#L66-L68

[jhoughjr]

dunno why this is closed, empty string still disconnects and is hard to diagnose.
Furhtermore, in my case, my configuration is:

Realm.Configuration {
fileURL = file:///var/mobile/Containers/Data/Application/8D84DD56-6C78-40B4-A5BA-DBA6BCCB6541/Documents/mongodb-realm/ctx-jsaux/625090e03f9e13d68a38e43f/%2522625090e03f9e13d68a38e43f%2522.realm;
inMemoryIdentifier = (null);
encryptionKey = (null);
readOnly = 0;
schemaVersion = 0;
migrationBlock = (null);
deleteRealmIfMigrationNeeded = 0;
shouldCompactOnLaunch = (null);
dynamic = 0;
customSchema = (null);
}
▿ _syncConfiguration : Optional
▿ some : SyncConfiguration
- user : <RLMUser: 0x28039c500>
▿ partitionValue : Optional
▿ some : AnyBSON
- string : "625090e03f9e13d68a38e43f"
- stopPolicy : __C.RLMSyncStopPolicy
- clientResetMode : RealmSwift.ClientResetMode.manual
- isFlexibleSync : false
- cancelAsyncOpenOnNonFatalErrors : false
▿ _path : Optional
- some : "/var/mobile/Containers/Data/Application/8D84DD56-6C78-40B4-A5BA-DBA6BCCB6541/Documents/mongodb-realm/ctx-jsaux/625090e03f9e13d68a38e43f/%22625090e03f9e13d68a38e43f%22.realm"

• _inMemoryIdentifier : nil
• encryptionKey : nil
• readOnly : false
• schemaVersion : 0
• migrationBlock : nil
• _deleteRealmIfMigrationNeeded : false
• shouldCompactOnLaunch : nil
  ▿ maximumNumberOfActiveVersions : Optional
  • some : 18446744073709551615
• seedFilePath : nil
• customSchema : nil
• disableFormatUpgrade : false

as you can see, my partition is not empty.
but logs show

Error:

user does not have permission to sync on partition (ProtocolErrorCode=206)
Partition:

"" (empty string)
Remote IP Address:
47.233.70.86
SDK:
Realm Cocoa v10.25.0
Platform Version:
Version 15.4 (Build 19E241Error:

user does not have permission to sync on partition (ProtocolErrorCode=206)
Partition:

"" (empty string)
Remote IP Address:
47.233.70.86
SDK:
Realm Cocoa v10.25.0
Platform Version:
Version 15.4 (Build 19E241)

[jhoughjr]

my bad this is realm-js, im using realm-swift