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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/viem/_cjs/actions/public
Просмотр файла: watchEvent.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.watchEvent = watchEvent;
const abi_js_1 = require("../../errors/abi.js");
const rpc_js_1 = require("../../errors/rpc.js");
const decodeEventLog_js_1 = require("../../utils/abi/decodeEventLog.js");
const encodeEventTopics_js_1 = require("../../utils/abi/encodeEventTopics.js");
const log_js_1 = require("../../utils/formatters/log.js");
const getAction_js_1 = require("../../utils/getAction.js");
const observe_js_1 = require("../../utils/observe.js");
const poll_js_1 = require("../../utils/poll.js");
const stringify_js_1 = require("../../utils/stringify.js");
const createEventFilter_js_1 = require("./createEventFilter.js");
const getBlockNumber_js_1 = require("./getBlockNumber.js");
const getFilterChanges_js_1 = require("./getFilterChanges.js");
const getLogs_js_1 = require("./getLogs.js");
const uninstallFilter_js_1 = require("./uninstallFilter.js");
function watchEvent(client, { address, args, batch = true, event, events, fromBlock, onError, onLogs, poll: poll_, pollingInterval = client.pollingInterval, strict: strict_, }) {
const enablePolling = (() => {
if (typeof poll_ !== 'undefined')
return poll_;
if (typeof fromBlock === 'bigint')
return true;
if (client.transport.type === 'webSocket' ||
client.transport.type === 'ipc')
return false;
if (client.transport.type === 'fallback' &&
(client.transport.transports[0].config.type === 'webSocket' ||
client.transport.transports[0].config.type === 'ipc'))
return false;
return true;
})();
const strict = strict_ ?? false;
const pollEvent = () => {
const observerId = (0, stringify_js_1.stringify)([
'watchEvent',
address,
args,
batch,
client.uid,
event,
pollingInterval,
fromBlock,
]);
return (0, observe_js_1.observe)(observerId, { onLogs, onError }, (emit) => {
let previousBlockNumber;
if (fromBlock !== undefined)
previousBlockNumber = fromBlock - 1n;
let filter;
let initialized = false;
const unwatch = (0, poll_js_1.poll)(async () => {
if (!initialized) {
try {
filter = (await (0, getAction_js_1.getAction)(client, createEventFilter_js_1.createEventFilter, 'createEventFilter')({
address,
args,
event: event,
events,
strict,
fromBlock,
}));
}
catch { }
initialized = true;
return;
}
try {
let logs;
if (filter) {
logs = await (0, getAction_js_1.getAction)(client, getFilterChanges_js_1.getFilterChanges, 'getFilterChanges')({ filter });
}
else {
const blockNumber = await (0, getAction_js_1.getAction)(client, getBlockNumber_js_1.getBlockNumber, 'getBlockNumber')({});
if (previousBlockNumber && previousBlockNumber !== blockNumber) {
logs = await (0, getAction_js_1.getAction)(client, getLogs_js_1.getLogs, 'getLogs')({
address,
args,
event: event,
events,
fromBlock: previousBlockNumber + 1n,
toBlock: blockNumber,
});
}
else {
logs = [];
}
previousBlockNumber = blockNumber;
}
if (logs.length === 0)
return;
if (batch)
emit.onLogs(logs);
else
for (const log of logs)
emit.onLogs([log]);
}
catch (err) {
if (filter && err instanceof rpc_js_1.InvalidInputRpcError)
initialized = false;
emit.onError?.(err);
}
}, {
emitOnBegin: true,
interval: pollingInterval,
});
return async () => {
if (filter)
await (0, getAction_js_1.getAction)(client, uninstallFilter_js_1.uninstallFilter, 'uninstallFilter')({ filter });
unwatch();
};
});
};
const subscribeEvent = () => {
let active = true;
let unsubscribe = () => (active = false);
(async () => {
try {
const transport = (() => {
if (client.transport.type === 'fallback') {
const transport = client.transport.transports.find((transport) => transport.config.type === 'webSocket' ||
transport.config.type === 'ipc');
if (!transport)
return client.transport;
return transport.value;
}
return client.transport;
})();
const events_ = events ?? (event ? [event] : undefined);
let topics = [];
if (events_) {
const encoded = events_.flatMap((event) => (0, encodeEventTopics_js_1.encodeEventTopics)({
abi: [event],
eventName: event.name,
args,
}));
topics = [encoded];
if (event)
topics = topics[0];
}
const { unsubscribe: unsubscribe_ } = await transport.subscribe({
params: ['logs', { address, topics }],
onData(data) {
if (!active)
return;
const log = data.result;
try {
const { eventName, args } = (0, decodeEventLog_js_1.decodeEventLog)({
abi: events_ ?? [],
data: log.data,
topics: log.topics,
strict,
});
const formatted = (0, log_js_1.formatLog)(log, { args, eventName });
onLogs([formatted]);
}
catch (err) {
let eventName;
let isUnnamed;
if (err instanceof abi_js_1.DecodeLogDataMismatch ||
err instanceof abi_js_1.DecodeLogTopicsMismatch) {
if (strict_)
return;
eventName = err.abiItem.name;
isUnnamed = err.abiItem.inputs?.some((x) => !('name' in x && x.name));
}
const formatted = (0, log_js_1.formatLog)(log, {
args: isUnnamed ? [] : {},
eventName,
});
onLogs([formatted]);
}
},
onError(error) {
onError?.(error);
},
});
unsubscribe = unsubscribe_;
if (!active)
unsubscribe();
}
catch (err) {
onError?.(err);
}
})();
return () => unsubscribe();
};
return enablePolling ? pollEvent() : subscribeEvent();
}
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