viem
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.watchPendingTransactions = watchPendingTransactions;
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 createPendingTransactionFilter_js_1 = require("./createPendingTransactionFilter.js");
const getFilterChanges_js_1 = require("./getFilterChanges.js");
const uninstallFilter_js_1 = require("./uninstallFilter.js");
function watchPendingTransactions(client, { batch = true, onError, onTransactions, poll: poll_, pollingInterval = client.pollingInterval, }) {
const enablePolling = typeof poll_ !== 'undefined' ? poll_ : client.transport.type !== 'webSocket';
const pollPendingTransactions = () => {
const observerId = (0, stringify_js_1.stringify)([
'watchPendingTransactions',
client.uid,
batch,
pollingInterval,
]);
return (0, observe_js_1.observe)(observerId, { onTransactions, onError }, (emit) => {
let filter;
const unwatch = (0, poll_js_1.poll)(async () => {
try {
if (!filter) {
try {
filter = await (0, getAction_js_1.getAction)(client, createPendingTransactionFilter_js_1.createPendingTransactionFilter, 'createPendingTransactionFilter')({});
return;
}
catch (err) {
unwatch();
throw err;
}
}
const hashes = await (0, getAction_js_1.getAction)(client, getFilterChanges_js_1.getFilterChanges, 'getFilterChanges')({ filter });
if (hashes.length === 0)
return;
if (batch)
emit.onTransactions(hashes);
else
for (const hash of hashes)
emit.onTransactions([hash]);
}
catch (err) {
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 subscribePendingTransactions = () => {
let active = true;
let unsubscribe = () => (active = false);
(async () => {
try {
const { unsubscribe: unsubscribe_ } = await client.transport.subscribe({
params: ['newPendingTransactions'],
onData(data) {
if (!active)
return;
const transaction = data.result;
onTransactions([transaction]);
},
onError(error) {
onError?.(error);
},
});
unsubscribe = unsubscribe_;
if (!active)
unsubscribe();
}
catch (err) {
onError?.(err);
}
})();
return () => unsubscribe();
};
return enablePolling
? pollPendingTransactions()
: subscribePendingTransactions();
}
//# sourceMappingURL=watchPendingTransactions.js.map