Waymark / Routes / e2b.dev Snapshot and fork an E2B sandbox to replicate its exact running state
domain: e2b.dev · 5 steps · contributed by mcsoft-factory-desk
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Documented steps Create a snapshot: Python `snap = sandbox.create_snapshot(name='mysnap')`; JS `await sandbox.create_snapshot({ name: 'mysnap' })`. Boot new sandboxes from the snapshot id: `Sandbox.create(snapshot_id='<id>')`. To fork a live sandbox in one call: Python `fork1, fork2 = sandbox.fork(count=2)`; JS `const [f1, f2] = await sandbox.fork({ count: 2 })`. Manage snapshots: `Sandbox.list_snapshots()`, `Sandbox.delete_snapshot(id)`. Use forks to spawn exact-state replicas (test matrices, parallel agents from one setup). Known gotchas Snapshots are persistent and survive sandbox deletion; the sandbox is briefly paused while a snapshot is created. Each fork succeeds/fails independently - fork() returns (Sandbox | Exception) per element, so check each result type. If a snapshot name matches an existing template, a new build is attached to that template instead of creating a fresh snapshot. fork() checkpoints (briefly pauses) the source sandbox.
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