xapi-activities
Version:
A server for xAPI activities
135 lines • 7.45 kB
JavaScript
;
var __assign = (this && this.__assign) || Object.assign || function(t) {
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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}
return t;
};
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) {
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var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
/* tslint:disable:max-file-line-count */
var lodash_1 = require("lodash");
var mongodb_1 = require("mongodb");
var IfMatch_1 = require("../errors/IfMatch");
var IfNoneMatch_1 = require("../errors/IfNoneMatch");
var MaxEtags_1 = require("../errors/MaxEtags");
var NonJsonObject_1 = require("../errors/NonJsonObject");
var constants_1 = require("./utils/constants");
// Within this code, Etags (ifMatch/ifNoneMatch) are used to manage concurrent creates/updates.
// Docs: https://github.com/adlnet/xAPI-Spec/blob/master/xAPI-Communication.md#concurrency
exports.default = function (config) {
return function (opts) { return __awaiter(_this, void 0, void 0, function () {
var collection, checkIfMatch, checkIfNoneMatch, jsonObjectFilter, profileFilter, contentPatch, update, ifMatchFilter, updateOpResult, updatedDocuments, createOpResult, wasCreated;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, config.db];
case 1:
collection = (_a.sent()).collection(constants_1.COLLECTION_NAME);
checkIfMatch = opts.ifMatch !== undefined;
checkIfNoneMatch = opts.ifNoneMatch === '*';
if (checkIfMatch && checkIfNoneMatch) {
throw new MaxEtags_1.default();
}
jsonObjectFilter = {
contentType: 'application/json',
isObjectContent: true,
};
profileFilter = {
activityId: opts.activityId,
lrs: new mongodb_1.ObjectID(opts.client.lrs_id),
organisation: new mongodb_1.ObjectID(opts.client.organisation),
profileId: opts.profileId,
};
contentPatch = lodash_1.mapKeys(opts.content, function (_value, key) {
return "content." + key;
});
update = {
// Overwrites the content and contentType.
contentType: 'application/json',
etag: opts.etag,
extension: 'json',
isObjectContent: true,
// Updates updatedAt time.
updatedAt: new Date(),
};
if (!!checkIfNoneMatch) return [3 /*break*/, 3];
ifMatchFilter = checkIfMatch ? { etag: opts.ifMatch } : {};
return [4 /*yield*/, collection.findOneAndUpdate(__assign({}, ifMatchFilter, jsonObjectFilter, profileFilter), {
$set: __assign({}, contentPatch, update),
}, {
returnOriginal: false,
upsert: false,
})];
case 2:
updateOpResult = _a.sent();
updatedDocuments = updateOpResult.lastErrorObject.n;
if (updatedDocuments === 1) {
return [2 /*return*/];
}
_a.label = 3;
case 3: return [4 /*yield*/, collection.findOneAndUpdate(profileFilter, {
$setOnInsert: __assign({ content: opts.content }, update),
}, {
returnOriginal: false,
upsert: true,
})];
case 4:
createOpResult = _a.sent();
wasCreated = createOpResult.lastErrorObject.upserted !== undefined;
// When the profile is found at the create stage but not the update stage,
// And the ifNoneMatch option was not provided.
// Then the exsting profile either has the wrong content or didn't match the ifMatch option.
if (!wasCreated && !checkIfNoneMatch) {
if (checkIfMatch && createOpResult.value.etag !== opts.ifMatch) {
throw new IfMatch_1.default();
}
throw new NonJsonObject_1.default();
}
// When the ifNoneMatch option is provided.
// No profile should be created when it already exists, hence we throw this error.
if (!wasCreated && checkIfNoneMatch) {
throw new IfNoneMatch_1.default();
}
return [2 /*return*/];
}
});
}); };
};
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