Static
prefixedOur documentId in Automerge URL form.
Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Optional
context: anySends an arbitrary ephemeral message out to all reachable peers who would receive sync messages from you. It has no guarantee of delivery, and is not persisted to the underlying automerge doc in any way. Messages will have a sending PeerId but this is not a useful user identifier (a user could have multiple tabs open and would appear as multiple PeerIds). Every message source must have a unique PeerId.
All changes to an Automerge document should be made through this method. Inside the callback, the document should be treated as mutable: all edits will be recorded using a Proxy and translated into operations as part of a single recorded "change".
Note that assignment via ES6 spread operators will result in replacing the object
instead of mutating it which will prevent clean merges. This may be what you want, but
doc.foo = { ...doc.foo, bar: "baz" }
is not equivalent to doc.foo.bar = "baz"
.
Local changes will be stored (by the StorageSubsystem) and synchronized (by the DocSynchronizer) to any peers you are sharing it with.
Returns a set of Patch operations that will move a materialized document from one state to another if applied.
Automerge patches that go from one document state to the other. Use view() to get the full state.
We allow specifying both a from/to heads or just a single comparison point, in which case the base will be the current document heads.
states to wait for, such as "LOADING". mostly for internal use.
the current state of this handle's Automerge document.
This is the recommended way to access a handle's document. Note that this waits for the handle to be ready if necessary. If loading (or synchronization) fails, this will never resolve.
Synchronously returns the current state of the Automerge document this handle manages, or
undefined. Consider using await handle.doc()
instead. Check isReady()
, or use whenReady()
if you want to make sure loading is complete first.
Not to be confused with the SyncState of the document, which describes the state of the synchronization process.
Note that undefined
is not a valid Automerge document, so the return from this function is
unambigous.
the current document, or undefined if the document is not ready.
Calls each of the listeners registered for a given event.
Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Return an array listing the events for which the emitter has registered listeners.
Creates a fixed "view" of an automerge document at the given point in time represented
by the heads
passed in. The return value is the same type as docSync() and will return
undefined if the object hasn't finished loading.
The individual heads for every change in the document.
A point-in-time in an automerge document is an array of heads since there may be concurrent edits. This API just returns a topologically sorted history of all edits so every previous entry will be (in some sense) before later ones, but the set of all possible history views would be quite large under concurrency (every thing in each branch against each other). There might be a clever way to think about this, but we haven't found it yet, so for now at least we present a single traversable view which excludes concurrency.
true if the handle is in one of the given states.
Return the number of listeners listening to a given event.
Return the listeners registered for a given event.
Optional
fn: ((...args) => void)Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Optional
context: anyOptional
once: booleanAdd a listener for a given event.
Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Optional
context: anyAdd a one-time listener for a given event.
Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Optional
context: anyRemove the listeners of a given event.
Optional
fn: ((...args) => void)Rest
...args: ArgumentMap<DocHandleEvents<T>>[Extract<T, keyof DocHandleEvents<T>>]Optional
context: anyOptional
once: booleanCreates a fixed "view" of an automerge document at the given point in time represented
by the heads
passed in. The return value is the same type as docSync() and will return
undefined if the object hasn't finished loading.
An Automerge.Doc
Note that our Typescript types do not consider change over time and the current version of Automerge doesn't check types at runtime, so if you go back to an old set of heads that doesn't match the heads here, Typescript will not save you.
a promise that resolves when the document is in one of the given states (if no states are passed, when the document is ready)
Use this to block until the document handle has finished loading. The async equivalent to
checking inState()
.
A DocHandle is a wrapper around a single Automerge document that lets us listen for changes and notify the network and storage of new changes.
Remarks
A
DocHandle
represents a document which is being managed by a Repo. You shouldn't ever instantiate this yourself. To obtainDocHandle
use Repo.find or Repo.create.To modify the underlying document use either DocHandle.change or DocHandle.changeAt. These methods will notify the
Repo
that some change has occured and theRepo
will save any new changes to the attached StorageAdapter and send sync messages to connected peers.