@lodestar/beacon-node/lib/db/single/preGenesisStateLastProcessedBlock.js

A Typescript implementation of the beacon chain

import { ssz } from "@lodestar/types";
import { Bucket } from "../buckets.js";
export class PreGenesisStateLastProcessedBlock {
    constructor(_config, db) {
        this.db = db;
        this.type = ssz.UintNum64;
        this.bucket = Bucket.phase0_preGenesisStateLastProcessedBlock;
        this.key = new Uint8Array([this.bucket]);
    }
    async put(value) {
        await this.db.put(this.key, this.type.serialize(value));
    }
    async get() {
        const value = await this.db.get(this.key);
        return value ? this.type.deserialize(value) : null;
    }
    async delete() {
        await this.db.delete(this.key);
    }
}
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