@ethereumjs/trie / TrieOpts
• Optional cacheSize: number
LRU cache for trie nodes to allow for faster node retrieval.
Default: 0 (deactivated)
• Optional common: CommonInterface
@ethereumjs/common Common instance (an alternative to passing in a customHashingFunction)
packages/trie/src/types.ts:102
• Optional db: DB<string, string | Uint8Array>
A database instance.
• Optional keyPrefix: Uint8Array
Add a prefix to the trie node keys
(potential performance benefits if multiple tries are stored within the same DB, e.g. all storage tries being stored in the outer account state DB)
• Optional root: Uint8Array
A Uint8Array for the root of a previously stored trie
• Optional useKeyHashing: boolean
Create as a secure Trie where the keys are automatically hashed using the
keccak256 hash function or alternatively the custom hash function provided.
Default: false
This is the flavor of the Trie which is used in production Ethereum networks like Ethereum Mainnet.
Note: This functionality has been refactored along the v5 release and was before
provided as a separate inherited class SecureTrie. Just replace with Trie
instantiation with useKeyHashing set to true.
• Optional useKeyHashingFunction: HashKeysFunction
Hash function used for hashing trie node and securing key.
• Optional useNodePruning: boolean
Flag to prune the trie. When set to true, each time a value is overridden,
unreachable nodes will be pruned (deleted) from the trie
• Optional useRootPersistence: boolean
Store the root inside the database after every write operation
• Optional valueEncoding: ValueEncoding
ValueEncoding of the database (the values which are put/get in the db are of this type). Defaults to string