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Loro

@loro.dev

Reimagine state management with CRDTs https://github.com/loro-dev/loro

10 Posts209 Follower6 Folgt
Loro@loro.dev · 2mo ago

New in Loro: Mergeable Containers! Concurrent Map child container creations no longer overwrite. This surprising overwrite issue existed in Loro, Yjs, and Automerge. Happy to finally ship a solution!

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Loro@loro.dev · 9mo ago

The Loro Protocol repo is now open source! It contains documentation for the wire protocol, along with TypeScript and Rust implementations of WebSocket clients and servers. The protocol allows reusing a single connection to join multiple CRDT rooms, such as Loro documents or the Ephemeral Store.

zx@zxch3n.com · last yr.

Loro Inspector is here! Now you can directly browse the current state and complete edit history of your Loro documents in the browser. You can also use this tool to time travel to any version in the history of your Loro document.

Loro@loro.dev · 2y ago

New version control primitives have been added to Loro: - diff(from, to): calculate the differences between any two versions - revertTo(version): Generate ops to revert to the target version - applyDiff(diff): Apply differences You can use them to implement functions like git squash and revert.

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zx@zxch3n.com · 2y ago

You may experience data loss due to the following issues caused by incorrect usage of CRDTs libraries, regardless of whether you're using Loro, Automerge, or Yjs. Here is how to avoid them:

Container Overwrites When initializing child containers in parallel, overwrites can occur instead of automatic merging. For example: const doc = new LoroDoc(); const map = doc.getMap("map"); // Parallel initialization of child containers const docB = doc.fork(); const textA = doc.getMap("map").setContainer("text", new LoroText()); textA.insert(0, "A"); const textB = docB.getMap("map").setContainer("text", new LoroText()); textB.insert(0, "B"); doc.import(docB.export({ mode: "update" })); // Result: Either { "meta": { "text": "A" } } or { "meta": { "text": "B" } } This behavior can lead to serious data loss issues. If a container holds significant data or even the entire document's content, overwriting it could result in unexpected loss of important information. While the complete editing history is preserved and allows for potential recovery of user data, the recovery process can be complex.