@substrate/node-watcher
Version:
Extract, Transform, Load Kusama/Polkadot history into a PostgreSQL DB
235 lines (234 loc) • 15.4 kB
JavaScript
"use strict";
// Copyright 2018-2020 @paritytech/nomidot authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __asyncValues = (this && this.__asyncValues) || function (o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
};
Object.defineProperty(exports, "__esModule", { value: true });
var util_1 = require("@polkadot/util");
var prisma_client_1 = require("../generated/prisma-client");
var filterEvents_1 = require("../util/filterEvents");
var l = util_1.logger('Task: Nomination + Validators');
/*
* ======= Table (Nomination and Validators) ======
*/
var createNominationAndValidators = {
name: 'createNominationAndValidators',
read: function (blockHash, cached, api) { return __awaiter(void 0, void 0, void 0, function () {
var result, events, sessionIndex, didNewSessionStart, validators;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
result = new Set();
events = cached.events, sessionIndex = cached.sessionIndex;
didNewSessionStart = filterEvents_1.filterEvents(events, 'session', 'NewSession').length > 0;
if (!didNewSessionStart) return [3 /*break*/, 3];
return [4 /*yield*/, api.query.session.validators.at(blockHash)];
case 1:
validators = _a.sent();
return [4 /*yield*/, Promise.all(validators.map(function (validator) { return __awaiter(void 0, void 0, void 0, function () {
var bonded, ledger, result_1, validatorStash, validatorController, validatorPreferences, exposure, currentEra;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, api.query.staking.bonded.at(blockHash, validator)];
case 1:
bonded = _a.sent();
return [4 /*yield*/, api.query.staking.ledger.at(blockHash, validator)];
case 2:
ledger = _a.sent();
// n.b. In the history of Kusama, there was a point when the Validator set was hard coded in, so during this period, they were actually not properly bonded, i.e. bonded and ledger were actually null.
if (bonded.isNone && ledger.isNone) {
result_1 = {
stakedAmount: null,
session: sessionIndex,
nominatorController: null,
nominatorStash: null,
validatorPreferences: null,
validatorController: validator,
validatorStash: validator,
};
return [2 /*return*/, result_1];
}
validatorStash = bonded.isNone
? ledger.unwrap().stash
: validator;
validatorController = ledger.isSome && ledger.unwrap().stash
? validator
: bonded.unwrap();
return [4 /*yield*/, api.query.staking.validators.at(blockHash, validatorStash)];
case 3:
validatorPreferences = _a.sent();
if (!api.query.staking.stakers) return [3 /*break*/, 5];
return [4 /*yield*/, api.query.staking.stakers.at(blockHash)];
case 4:
exposure = _a.sent();
return [3 /*break*/, 8];
case 5: return [4 /*yield*/, api.query.staking.currentEra.at(blockHash)];
case 6:
currentEra = _a.sent();
return [4 /*yield*/, api.query.staking.erasStakers.at(blockHash, currentEra.unwrap(), validatorStash)];
case 7:
exposure = _a.sent();
_a.label = 8;
case 8:
// per validator in session, get nominator info
return [4 /*yield*/, Promise.all(exposure.others.map(function (individualExposure) { return __awaiter(void 0, void 0, void 0, function () {
var who, value, bonded, ledger, nominatorStash, nominatorController;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
who = individualExposure.who, value = individualExposure.value;
return [4 /*yield*/, api.query.staking.bonded.at(blockHash, who)];
case 1:
bonded = _a.sent();
return [4 /*yield*/, api.query.staking.ledger.at(blockHash, who)];
case 2:
ledger = _a.sent();
nominatorStash = bonded.isNone
? ledger.unwrapOr({ stash: null }).stash
: who;
nominatorController = ledger.isSome && ledger.unwrapOr({ stash: null }).stash
? who
: bonded.unwrapOr(null);
result.add({
nominatorStash: nominatorStash,
nominatorController: nominatorController,
session: sessionIndex,
stakedAmount: value,
validatorController: validatorController,
validatorStash: validatorStash,
validatorPreferences: validatorPreferences,
});
return [2 /*return*/];
}
});
}); }))];
case 9:
// per validator in session, get nominator info
_a.sent();
return [2 /*return*/];
}
});
}); }))];
case 2:
_a.sent();
return [3 /*break*/, 4];
case 3:
l.log('Session did not change. Skipping....');
_a.label = 4;
case 4: return [2 /*return*/, result];
}
});
}); },
write: function (blockNumber, values) { var values_1, values_1_1; return __awaiter(void 0, void 0, void 0, function () {
var nominationsAndValidators, stakedAmount, session, nominatorController, nominatorStash, validatorController, validatorStash, validatorPreferences, e_1_1;
var e_1, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 7, 8, 13]);
values_1 = __asyncValues(values);
_b.label = 1;
case 1: return [4 /*yield*/, values_1.next()];
case 2:
if (!(values_1_1 = _b.sent(), !values_1_1.done)) return [3 /*break*/, 6];
nominationsAndValidators = values_1_1.value;
stakedAmount = nominationsAndValidators.stakedAmount, session = nominationsAndValidators.session, nominatorController = nominationsAndValidators.nominatorController, nominatorStash = nominationsAndValidators.nominatorStash, validatorController = nominationsAndValidators.validatorController, validatorStash = nominationsAndValidators.validatorStash, validatorPreferences = nominationsAndValidators.validatorPreferences;
return [4 /*yield*/, prisma_client_1.prisma.createValidator({
session: {
connect: {
index: session.toNumber(),
},
},
controller: validatorController ? validatorController.toHex() : '0x00',
stash: validatorStash ? validatorStash.toHex() : '0x00',
preferences: validatorPreferences
? validatorPreferences.toHex()
: '0x00',
})];
case 3:
_b.sent();
return [4 /*yield*/, prisma_client_1.prisma.createNomination({
session: {
connect: {
index: session.toNumber(),
},
},
validatorController: validatorController
? validatorController.toHex()
: '0x00',
validatorStash: validatorStash ? validatorStash.toHex() : '0x00',
nominatorController: nominatorController
? nominatorController.toHex()
: '0x00',
nominatorStash: nominatorStash ? nominatorStash.toHex() : '0x00',
stakedAmount: stakedAmount.toHex(),
})];
case 4:
_b.sent();
_b.label = 5;
case 5: return [3 /*break*/, 1];
case 6: return [3 /*break*/, 13];
case 7:
e_1_1 = _b.sent();
e_1 = { error: e_1_1 };
return [3 /*break*/, 13];
case 8:
_b.trys.push([8, , 11, 12]);
if (!(values_1_1 && !values_1_1.done && (_a = values_1.return))) return [3 /*break*/, 10];
return [4 /*yield*/, _a.call(values_1)];
case 9:
_b.sent();
_b.label = 10;
case 10: return [3 /*break*/, 12];
case 11:
if (e_1) throw e_1.error;
return [7 /*endfinally*/];
case 12: return [7 /*endfinally*/];
case 13: return [2 /*return*/];
}
});
}); },
};
exports.default = createNominationAndValidators;