eth-rpc-cache/dist/strategies/per-block.js

A simple cache for Ethereum RPC requests extensible with different caching strategies

var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
        if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
        }
    }
    return to.concat(ar || Array.prototype.slice.call(from));
};
// These methods could be permanently cached if executed i.e. on an old block.
// For newer blocks, the results could change in the case of a [deep] reorg.
var mayBeSafeMethods = [
    'eth_call',
    'eth_getBalance',
    'eth_getBlockByNumber',
    'eth_getBlockTransactionCountByNumber',
    'eth_getCode',
    'eth_getLogs',
    'eth_getProof',
    'eth_getRawTransactionByBlockNumberAndIndex',
    'eth_getStorageAt',
    'eth_getTransactionByBlockNumberAndIndex',
    'eth_getTransactionCount',
    'eth_getTransactionReceipt',
    'eth_getUncleByBlockNumberAndIndex',
    'eth_getUncleCountByBlockNumber'
];
// These methods can be cached at most until a new block is mined.
var perBlockMethods = [
    'eth_blockNumber',
    'eth_feeHistory',
    'eth_getFilterChanges',
    'eth_getFilterLogs',
    'eth_getWork'
];
var methods = __spreadArray(__spreadArray([], mayBeSafeMethods, true), perBlockMethods, true);
export var perBlockStrategy = {
    maxAge: 6000, // Half block time: ~6 sec.
    methods: methods,
    name: 'block'
};