lisk-framework/dist-node/engine/endpoint/state.js

Lisk blockchain application platform

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StateEndpoint = void 0;
const lisk_validator_1 = require("@liskhq/lisk-validator");
const stateProveRequestSchema = {
    $id: '/node/endpoint/stateProveRequestSchema',
    type: 'object',
    required: ['queryKeys'],
    properties: {
        queryKeys: {
            type: 'array',
            items: {
                dataType: 'string',
            },
        },
    },
};
class StateEndpoint {
    constructor(args) {
        this._abi = args.abi;
        this._chain = args.chain;
    }
    async prove(ctx) {
        lisk_validator_1.validator.validate(stateProveRequestSchema, ctx.params);
        if (!this._chain.lastBlock.header.stateRoot) {
            throw new Error('Last block header state root is empty.');
        }
        const { proof } = await this._abi.prove({
            stateRoot: this._chain.lastBlock.header.stateRoot,
            keys: ctx.params.queryKeys.map(key => Buffer.from(key, 'hex')),
        });
        return {
            proof: {
                queries: proof.queries.map(query => ({
                    bitmap: query.bitmap.toString('hex'),
                    key: query.key.toString('hex'),
                    value: query.value.toString('hex'),
                })),
                siblingHashes: proof.siblingHashes.map(s => s.toString('hex')),
            },
        };
    }
}
exports.StateEndpoint = StateEndpoint;
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