Realm JavaScript v10.20.0-alpha.1

[kraenhansen]

NOTE: DO NOT USE THIS RELEASE IN PRODUCTION!
NOTE: This is an early (alpha) release with Hermes/JSI support: We expect crashes and bugs.

Enhancements

• Adding support for Hermes on Android.

Fixed

• None.

Compatibility

• MongoDB Realm Cloud.
• Realm Studio v11.0.0.
• APIs are backwards compatible with all previous releases of Realm JavaScript in the 10.5.x series.
• File format: generates Realms with format v22 (reads and upgrades file format v5 or later for non-synced Realm, upgrades file format v10 or later for synced Realms).

Internal

• Lint react-native templates and ensure they are checked by the CI.
• Small fix to Jenkins to publish Docker image for Raspberry Pi.

---

This discussion was created from the release Realm JavaScript v10.20.0-alpha.1.

[8BallBomBom]

Will test further but so far things seem to be working with RN 0.66.0-rc.3 along with Android 10 on a physical device 👍🏻

[batuhansahan]

So far there is no issue on IOS & Android. What is the roadmap, may i ask ? @kraenhansen

[harloware]

"realm": "10.20.0-alpha.1"
"react-native": "0.66.1"

I'm having an issue calling Realm Functions from the User class. This is on an existing project, and was working before the switch to 10.20.0-alpha.1.

LOG [TypeError: Cannot read property 'findOrganizationsAssociatedByEmailAddress' of undefined]

I log the realmUser object prototype and this is the result:

["__Realm_internal", "constructor", "_customData", "accessToken", "apiKeys", "deviceId", "id", "identities", "isLoggedIn", "profile", "providerType", "refreshToken", "state", "_callFunction", "_linkCredentials", "_logOut", "_makeStreamingRequest", "_newWatchStream", "_pushDeregister", "_pushRegister", "_refreshCustomData", "_sessionForOnDiskPath", "toString", "toLocaleString", "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", "proto", "defineGetter", "defineSetter", "lookupGetter", "lookupSetter"]

Edit: forgot to mention how I am invoking the realm function:

const organizations = await realmUser.functions.findOrganizationsAssociatedByEmailAddress(emailAddress);

Update: I changed realm back to 10.91.1 and set :hermes_enabled => false, and then everything works as expected again. Logged the realmUser object prototype, and it looks as it should:

["deviceId", "apiKeys", "accessToken", "providerType", "profile", "_customData", "refreshToken", "isLoggedIn", "state", "id", "identities", "_newWatchStream", "_pushRegister", "_linkCredentials", "_pushDeregister", "_refreshCustomData", "_logOut", "_makeStreamingRequest", "_callFunction", "_sessionForOnDiskPath", "linkCredentials", "logOut", "callFunction", "refreshCustomData", "mongoClient", "push", "functions", "auth", "customData", "_functionsOnService", "constructor", "toString", "toLocaleString", "valueOf", "hasOwnProperty", "propertyIsEnumerable", "isPrototypeOf", "defineGetter", "defineSetter", "lookupGetter", "lookupSetter", "proto"]

[8BallBomBom]

Nice catch, not using the user functions on my end but the general database functions appear solid 👍🏻

[threefeetcat]

Have a similar issue here.
Cannot logout - got TypeError: user.logOut is not a function
If I disable hermes & use the latest version of realm, everything works well.

[kraenhansen]

I've created #4117 to track this and @threefeetcat I've created #4118 to track your comment.

[somebody32]

In my case updating to that alpha generates an error when creating an object with a property of array of strings, ie:

realm.create(
          'Entity',
          {categories: ['personal']},
          UpdateMode.Modified
        );

gives:

Error: Exception in HostFunction: Entity.categories must be of type 'string[]', got 'object' (personal), js engine: hermes

but, interestingly, everything persists correctly.

But the good news is that now Realm works perfectly with Reanimated 2, reload works without a crash, so I believe that issue could be closed soon: software-mansion/react-native-reanimated#1424

[whalemare]

In my case, hot-reload worked nicely on Androd, but Reload (with R button) cause crash of application

[kraenhansen]

I've created #4119 to track this.

[kraenhansen]

We've released a new version of Realm JS with support for the Hermes engine: Realm JS v10.20.0-alpha.2

Please take it for a spin and provide any feedback or issues you might have using the Hermes issue template.

[fronck]

@somebody32 Have you had a chance to look at whether this issue is still present in alpha.2?

[somebody32]

@fronck yes, unfortunately, it still happens

[fronck]

@somebody32 I haven't been able to reproduce the error. Are you running the code in React Native?
Can you provide a full reproduction example?
Oh, and let's move the discussion on this issue to #4119.