@substrate/api-sidecar
Version:
REST service that makes it easy to interact with blockchain nodes built using Substrate's FRAME framework.
127 lines • 6.22 kB
JavaScript
"use strict";
// Copyright 2017-2025 Parity Technologies (UK) Ltd.
// This file is part of Substrate API Sidecar.
//
// Substrate API Sidecar is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const util_1 = require("@polkadot/util");
const middleware_1 = require("../../middleware");
const services_1 = require("../../services");
const AbstractController_1 = __importDefault(require("../AbstractController"));
class PalletsEventsController extends AbstractController_1.default {
constructor(api) {
super(api, '/pallets/:palletId/events', new services_1.PalletsEventsService(api));
this.getEventById = async ({ query: { at, metadata, useRcBlock }, params: { palletId, eventItemId } }, res) => {
const metadataArg = metadata === 'true';
if (useRcBlock === 'true') {
const rcAtResults = await this.getHashFromRcAt(at);
// Return empty array if no Asset Hub blocks found
if (rcAtResults.length === 0) {
PalletsEventsController.sanitizedSend(res, []);
return;
}
// Process each Asset Hub block found
const results = [];
for (const { ahHash, rcBlockHash, rcBlockNumber } of rcAtResults) {
const historicApi = await this.api.at(ahHash);
const result = await this.service.fetchEventItem(historicApi, {
hash: ahHash,
// stringCamelCase ensures we don't have snake case or kebab case
palletId: (0, util_1.stringCamelCase)(palletId),
eventItemId: (0, util_1.stringCamelCase)(eventItemId),
metadata: metadataArg,
});
const apiAt = await this.api.at(ahHash);
const ahTimestamp = await apiAt.query.timestamp.now();
const enhancedResult = {
...result,
rcBlockHash: rcBlockHash.toString(),
rcBlockNumber,
ahTimestamp: ahTimestamp.toString(),
};
results.push(enhancedResult);
}
PalletsEventsController.sanitizedSend(res, results);
}
else {
const hash = await this.getHashFromAt(at);
const historicApi = await this.api.at(hash);
const result = await this.service.fetchEventItem(historicApi, {
hash,
// stringCamelCase ensures we don't have snake case or kebab case
palletId: (0, util_1.stringCamelCase)(palletId),
eventItemId: (0, util_1.stringCamelCase)(eventItemId),
metadata: metadataArg,
});
PalletsEventsController.sanitizedSend(res, result);
}
};
this.getEvents = async ({ params: { palletId }, query: { at, onlyIds, useRcBlock } }, res) => {
const onlyIdsArg = onlyIds === 'true';
if (useRcBlock === 'true') {
const rcAtResults = await this.getHashFromRcAt(at);
// Return empty array if no Asset Hub blocks found
if (rcAtResults.length === 0) {
PalletsEventsController.sanitizedSend(res, []);
return;
}
// Process each Asset Hub block found
const results = [];
for (const { ahHash, rcBlockHash, rcBlockNumber } of rcAtResults) {
const historicApi = await this.api.at(ahHash);
const result = await this.service.fetchEvents(historicApi, {
hash: ahHash,
palletId: (0, util_1.stringCamelCase)(palletId),
onlyIds: onlyIdsArg,
});
const apiAt = await this.api.at(ahHash);
const ahTimestamp = await apiAt.query.timestamp.now();
const enhancedResult = {
...result,
rcBlockHash: rcBlockHash.toString(),
rcBlockNumber,
ahTimestamp: ahTimestamp.toString(),
};
results.push(enhancedResult);
}
PalletsEventsController.sanitizedSend(res, results);
}
else {
const hash = await this.getHashFromAt(at);
const historicApi = await this.api.at(hash);
const result = await this.service.fetchEvents(historicApi, {
hash,
palletId: (0, util_1.stringCamelCase)(palletId),
onlyIds: onlyIdsArg,
});
PalletsEventsController.sanitizedSend(res, result);
}
};
this.initRoutes();
}
initRoutes() {
this.router.use(this.path, middleware_1.validateUseRcBlock);
this.safeMountAsyncGetHandlers([
['/:eventItemId', this.getEventById],
['/', this.getEvents],
]);
}
}
PalletsEventsController.controllerName = 'PalletsEvents';
PalletsEventsController.requiredPallets = [];
exports.default = PalletsEventsController;
//# sourceMappingURL=PalletsEventsController.js.map