@yosefsolutions/feathers-redis-cache
Version:
Redis cache for feathers service
209 lines • 9.12 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var hooks_1 = require("./hooks");
var DISABLE_REDIS_CACHE = process.env.DISABLE_REDIS_CACHE;
var HTTP_OK = 200;
var HTTP_NO_CONTENT = 204;
var HTTP_SERVER_ERROR = 500;
var HTTP_NOT_FOUND = 404;
var serviceClearSingle = {
setup: function (app, path) {
this.app = app;
this.path = path;
},
find: function (params) {
return __awaiter(this, void 0, void 0, function () {
var client, target;
return __generator(this, function (_a) {
client = this.app.get('redisClient');
target = params.query.target;
if (!target) {
return [2, {
message: 'You must provide key',
status: HTTP_NOT_FOUND
}];
}
if (!client) {
return [2, {
message: 'Redis unavailable',
status: HTTP_SERVER_ERROR
}];
}
return [2, new Promise(function (resolve) {
var del = client.unlink || client.del;
client.get(target, function (err, reply) {
if (err) {
return resolve({ message: 'something went wrong' + err.message });
}
if (!reply) {
return resolve({
message: "cache already cleared for key " + target,
status: HTTP_NO_CONTENT
});
}
del(target, function (err, reply) {
if (err) {
return resolve({ message: 'something went wrong' + err.message });
}
if (!reply) {
return resolve({
message: "cache already cleared for key " + target,
status: HTTP_NO_CONTENT
});
}
resolve({
message: "cache cleared for key " + target,
status: HTTP_OK
});
});
});
})];
});
});
},
};
var serviceClearGroup = {
setup: function (app, path) {
this.app = app;
this.path = path;
},
find: function (params) {
return __awaiter(this, void 0, void 0, function () {
var client, prefix, target, targetGroup;
return __generator(this, function (_a) {
client = this.app.get('redisClient');
prefix = this.app.get('redis').prefix;
target = params.query.target;
targetGroup = target ? hooks_1.hashCode("group-" + target) : '';
if (!client) {
return [2, {
message: 'Redis unavailable',
status: HTTP_SERVER_ERROR
}];
}
if (!targetGroup) {
return [2, {
message: 'Target is required',
status: HTTP_SERVER_ERROR
}];
}
return [2, hooks_1.purgeGroup(client, targetGroup, prefix)
.then(function () { return ({
message: "cache cleared for group " + target,
status: HTTP_OK,
}); })
.catch(function (err) { return ({
message: err.message,
status: HTTP_SERVER_ERROR,
}); })];
});
});
},
};
var serviceClearAll = {
setup: function (app, path) {
this.app = app;
this.path = path;
},
find: function () {
return __awaiter(this, void 0, void 0, function () {
var client, prefix;
return __generator(this, function (_a) {
client = this.app.get('redisClient');
prefix = this.app.get('redis').prefix;
if (!client) {
return [2, {
message: 'Redis unavailable',
status: HTTP_SERVER_ERROR
}];
}
return [2, hooks_1.purgeGroup(client, '', prefix)
.then(function () { return ({
message: 'cache cleared',
status: HTTP_OK,
}); })
.catch(function (err) { return ({
message: err.message,
status: HTTP_SERVER_ERROR,
}); })];
});
});
},
};
var serviceFlashDb = {
setup: function (app, path) {
this.app = app;
this.path = path;
},
find: function () {
return __awaiter(this, void 0, void 0, function () {
var client;
return __generator(this, function (_a) {
client = this.app.get('redisClient');
if (!client) {
return [2, {
message: 'Redis unavailable',
status: HTTP_SERVER_ERROR
}];
}
return [2, new Promise(function (resolve) {
client.flushdb(function () {
resolve({
message: 'Cache cleared',
status: HTTP_OK
});
});
})];
});
});
},
};
exports.default = (function (options) {
if (options === void 0) { options = {}; }
var pathPrefix = options.pathPrefix || '/cache';
return function () {
var app = this;
if (!DISABLE_REDIS_CACHE) {
app.use(pathPrefix + "/clear/single", serviceClearSingle);
app.use(pathPrefix + "/clear/group", serviceClearGroup);
app.use(pathPrefix + "/clear/all", serviceClearAll);
app.use(pathPrefix + "/flashdb", serviceFlashDb);
}
};
});
//# sourceMappingURL=services.js.map