node-ts-cache-storage-node-fs/dist/index.js

Nodejs filesystem storage module for node-ts-cache

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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};
var __generator = (this && this.__generator) || function (thisArg, body) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.NodeFsStorage = void 0;
var Bluebird = require("bluebird");
var Fs = Bluebird.promisifyAll(require("fs"));
var NodeFsStorage = /** @class */ (function () {
    function NodeFsStorage(jsonFilePath) {
        this.jsonFilePath = jsonFilePath;
        if (!Fs.existsSync(this.jsonFilePath)) {
            this.createEmptyCache();
        }
    }
    NodeFsStorage.prototype.getItem = function (key) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.getCacheObject()];
                    case 1: return [2 /*return*/, (_a.sent())[key]];
                }
            });
        });
    };
    NodeFsStorage.prototype.setItem = function (key, content) {
        return __awaiter(this, void 0, void 0, function () {
            var cache;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.getCacheObject()];
                    case 1:
                        cache = _a.sent();
                        cache[key] = content;
                        return [4 /*yield*/, this.setCache(cache)];
                    case 2:
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        });
    };
    NodeFsStorage.prototype.clear = function () {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.createEmptyCache()];
                    case 1:
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        });
    };
    NodeFsStorage.prototype.createEmptyCache = function () {
        Fs.writeFileSync(this.jsonFilePath, JSON.stringify({}));
    };
    NodeFsStorage.prototype.setCache = function (newCache) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, Fs.writeFileAsync(this.jsonFilePath, JSON.stringify(newCache))];
                    case 1:
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        });
    };
    NodeFsStorage.prototype.getCacheObject = function () {
        return __awaiter(this, void 0, void 0, function () {
            var _a, _b;
            return __generator(this, function (_c) {
                switch (_c.label) {
                    case 0:
                        _b = (_a = JSON).parse;
                        return [4 /*yield*/, Fs.readFileAsync(this.jsonFilePath)];
                    case 1: return [2 /*return*/, _b.apply(_a, [(_c.sent()).toString()])];
                }
            });
        });
    };
    return NodeFsStorage;
}());
exports.NodeFsStorage = NodeFsStorage;