@amnesia-js/core/lib/core/io.js

Javascript Client for AmnesiaDB

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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        step((generator = generator.apply(thisArg, _arguments || [])).next());
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};
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;
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                case 0: case 1: t = op; break;
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AmnesiaClient = void 0;
var net_1 = require("net");
var uuid_1 = require("uuid");
var constants_1 = require("../constants");
var AmnesiaClient = /** @class */ (function () {
    function AmnesiaClient() {
        this.jobResolvers = new Map();
    }
    AmnesiaClient.prototype.connect = function (_a) {
        var _b = _a.port, port = _b === void 0 ? constants_1.DEFAULT_PORT : _b, _c = _a.host, host = _c === void 0 ? constants_1.DEFAULT_ADDRESS : _c;
        return __awaiter(this, void 0, void 0, function () {
            var _this = this;
            return __generator(this, function (_d) {
                return [2 /*return*/, new Promise(function (resolve) {
                        _this.client = (0, net_1.createConnection)({
                            port: port,
                            host: host,
                        }, function () {
                            var _a;
                            (_a = _this.client) === null || _a === void 0 ? void 0 : _a.on('data', function (data) {
                                var respList = data.toString().trimEnd().split('\r\n');
                                respList.forEach(function (value, index) {
                                    var resp = value.split(':');
                                    var resolveInner = _this.jobResolvers.get(resp[0]);
                                    _this.jobResolvers.delete(resp[0]);
                                    resolveInner === null || resolveInner === void 0 ? void 0 : resolveInner(resp[1]);
                                });
                            });
                            console.debug('Connected to Amnesia DB');
                            resolve(_this.client);
                        });
                    })];
            });
        });
    };
    AmnesiaClient.prototype.query = function (queryString) {
        return __awaiter(this, void 0, void 0, function () {
            var jobId;
            var _this = this;
            return __generator(this, function (_a) {
                jobId = (0, uuid_1.v4)();
                return [2 /*return*/, new Promise(function (resolve) {
                        var _a;
                        _this.jobResolvers.set(jobId, resolve);
                        (_a = _this.client) === null || _a === void 0 ? void 0 : _a.write(jobId + ":" + queryString + constants_1.CRLF);
                    })];
            });
        });
    };
    AmnesiaClient.prototype.get = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            var resp;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.query("GET " + key)];
                    case 1:
                        resp = _a.sent();
                        if (resp === '<NIL>') {
                            return [2 /*return*/, null];
                        }
                        return [2 /*return*/, resp];
                }
            });
        });
    };
    AmnesiaClient.prototype.set = function (key, value, config) {
        return __awaiter(this, void 0, void 0, function () {
            var queryString, _a, ttl, nfetch;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        queryString = "SET \"" + key + "\" AS \"" + value + "\"";
                        _a = config !== null && config !== void 0 ? config : {}, ttl = _a.ttl, nfetch = _a.nfetch;
                        if (ttl || nfetch) {
                            queryString += " WHERE" + (ttl ? " TTL=" + ttl : '') + (nfetch ? " NFETCH=" + nfetch : '');
                        }
                        return [4 /*yield*/, this.query(queryString)];
                    case 1:
                        _b.sent();
                        return [2 /*return*/, true];
                }
            });
        });
    };
    AmnesiaClient.prototype.destroy = function () {
        this.client.destroy();
    };
    return AmnesiaClient;
}());
exports.AmnesiaClient = AmnesiaClient;