@paradeum/burrow/dist/lib/events.js

TypeScript library that calls a Hyperledger Burrow server over GRPC.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
exports.__esModule = true;
exports.Events = void 0;
var rpcevents_pb_1 = require("../../proto/rpcevents_pb");
var grpc = __importStar(require("grpc"));
var Events = /** @class */ (function () {
    function Events(burrow) {
        this.burrow = burrow;
    }
    Events.prototype.listen = function (query, callback) {
        var start = new rpcevents_pb_1.Bound();
        start.setType(3);
        start.setIndex(0);
        var end = new rpcevents_pb_1.Bound();
        end.setType(4);
        end.setIndex(0);
        var range = new rpcevents_pb_1.BlockRange();
        range.setStart(start);
        range.setEnd(end);
        var arg = new rpcevents_pb_1.BlocksRequest();
        arg.setBlockrange(range);
        arg.setQuery(query);
        var stream = this.burrow.events(arg);
        stream.on('data', function (data) {
            data.getEventsList().map(function (event) {
                callback(null, event.getLog());
            });
        });
        stream.on('error', function (err) {
            return err.code === grpc.status.CANCELLED ? callback(null, null) : callback(err, null);
        });
        stream.on('close', function () { return callback(null, null); });
        stream.on('end', function () { return callback(null, null); });
        return stream;
    };
    Events.prototype.subContractEvents = function (address, signature, callback) {
        var filter = "EventType = 'LogEvent' AND Address = '" + address.toUpperCase() + "'" + " AND Log0 = '" + signature.toUpperCase() + "'";
        return this.listen(filter, callback);
    };
    return Events;
}());
exports.Events = Events;
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