@checkfirst/nestjs-outlook
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An opinionated NestJS module for Microsoft Outlook integration that provides easy access to Microsoft Graph API for emails, calendars, and more.
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JavaScript
;
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var DeltaSyncService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DeltaSyncService = exports.DeltaSyncError = void 0;
const common_1 = require("@nestjs/common");
const outlook_delta_link_repository_1 = require("../../repositories/outlook-delta-link.repository");
const resource_type_enum_1 = require("../../enums/resource-type.enum");
const retry_util_1 = require("../../utils/retry.util");
class DeltaSyncError extends Error {
constructor(message, code, statusCode) {
super(message);
this.code = code;
this.statusCode = statusCode;
this.name = "DeltaSyncError";
}
}
exports.DeltaSyncError = DeltaSyncError;
let DeltaSyncService = DeltaSyncService_1 = class DeltaSyncService {
constructor(deltaLinkRepository) {
this.deltaLinkRepository = deltaLinkRepository;
this.logger = new common_1.Logger(DeltaSyncService_1.name);
this.MAX_RETRIES = 3;
this.RETRY_DELAY_MS = 1000;
}
handleDeltaResponse(response, userId, resourceType) {
var _a;
if ((_a = response["@odata.deltaLink"]) === null || _a === void 0 ? void 0 : _a.includes("$deltatoken=")) {
this.logger.log(`Sync reset detected for user ${userId}, resource ${resourceType} with ${response.value.length} changes`);
}
if (response["@odata.deltaLink"]) {
const tokenExpiry = this.calculateTokenExpiry(resourceType);
this.logger.log(`Delta token will expire at ${tokenExpiry.toISOString()}`);
}
}
calculateTokenExpiry(resourceType) {
const now = new Date();
if (resourceType === resource_type_enum_1.ResourceType.CALENDAR) {
return new Date(now.getTime() + 6 * 24 * 60 * 60 * 1000);
}
return new Date(now.getTime() + 7 * 24 * 60 * 60 * 1000);
}
handleReplays(items) {
var _a;
const uniqueItems = new Map();
for (const item of items) {
if (item.id) {
if (item["@removed"]) {
uniqueItems.set(item.id, item);
}
else if (!uniqueItems.has(item.id) ||
!((_a = uniqueItems.get(item.id)) === null || _a === void 0 ? void 0 : _a["@removed"])) {
uniqueItems.set(item.id, item);
}
}
}
return Array.from(uniqueItems.values());
}
sortDeltaItems(items) {
return items.sort((a, b) => {
var _a, _b, _c, _d;
const aTime = (_b = (_a = a.lastModifiedDateTime) !== null && _a !== void 0 ? _a : a.createdDateTime) !== null && _b !== void 0 ? _b : "";
const bTime = (_d = (_c = b.lastModifiedDateTime) !== null && _c !== void 0 ? _c : b.createdDateTime) !== null && _d !== void 0 ? _d : "";
return new Date(aTime).getTime() - new Date(bTime).getTime();
});
}
fetchDeltaPagesCore(client, startUrl, userId) {
return __asyncGenerator(this, arguments, function* fetchDeltaPagesCore_1() {
let currentUrl = startUrl;
let pageCount = 0;
while (currentUrl) {
pageCount++;
this.logger.debug(`[fetchDeltaPagesCore] Fetching page ${pageCount} for user ${userId}`);
const response = (yield __await((0, retry_util_1.retryWithBackoff)(() => client.api(currentUrl).get(), {
maxRetries: this.MAX_RETRIES,
retryDelayMs: this.RETRY_DELAY_MS,
})));
this.logger.debug(`[fetchDeltaPagesCore] Received ${response.value.length} items in page ${pageCount}`);
const eventDetails = yield __await(Promise.all(response.value.map((item) => item["@removed"]
? Promise.resolve(item)
: client.api(`/me/events/${item.id}`).get())));
const deltaLink = response["@odata.deltaLink"]
? this.getDeltaLink(response)
: null;
const isLastPage = deltaLink !== null;
if (isLastPage) {
this.logger.log(`[fetchDeltaPagesCore] Reached last page (${pageCount}) with delta link for user ${userId}`);
}
yield yield __await({
items: eventDetails,
deltaLink,
isLastPage,
});
currentUrl = response["@odata.nextLink"] || "";
if (currentUrl) {
yield __await((0, retry_util_1.delay)(200));
}
}
});
}
async fetchAllDeltaPages(client, startUrl, userId) {
var _a, e_1, _b, _c;
const allItems = [];
let lastDeltaLink = null;
let pageCount = 0;
try {
for (var _d = true, _e = __asyncValues(this.fetchDeltaPagesCore(client, startUrl, userId)), _f; _f = await _e.next(), _a = _f.done, !_a; _d = true) {
_c = _f.value;
_d = false;
const page = _c;
allItems.push(...page.items);
pageCount++;
if (page.isLastPage && page.deltaLink) {
lastDeltaLink = page.deltaLink;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (!_d && !_a && (_b = _e.return)) await _b.call(_e);
}
finally { if (e_1) throw e_1.error; }
}
this.logger.log(`[fetchAllDeltaPages] Collected ${allItems.length} items across ${pageCount} pages for user ${userId}`);
return { items: allItems, deltaLink: lastDeltaLink };
}
async fetchAndSortChanges(client, requestUrl, userId, forceReset = false, dateRange) {
let startLink = await this.deltaLinkRepository.getDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR);
this.logger.log(`[fetchAndSortChanges] startLink: ${startLink} forceReset: ${forceReset} dateRange: ${JSON.stringify(dateRange)}`);
if (forceReset && startLink) {
this.logger.log(`[fetchAndSortChanges] Force reset requested, deleting existing delta link for user ${userId}`);
await this.deltaLinkRepository.deleteDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR);
startLink = null;
}
if (!startLink) {
this.logger.log(`[fetchAndSortChanges] No delta link found for user ${userId}, initializing from current point`);
const result = await this.initializeDeltaLink(client, requestUrl, Number(userId), resource_type_enum_1.ResourceType.CALENDAR, dateRange);
return this.sortDeltaItems(result);
}
this.logger.debug(`[fetchAndSortChanges] Starting incremental sync with existing delta link for user ${userId}`);
const { items: allItems, deltaLink: lastDeltaLink } = await this.fetchAllDeltaPages(client, startLink, Number(userId));
if (lastDeltaLink) {
await this.saveDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR, lastDeltaLink);
this.logger.log(`[fetchAndSortChanges] Saved delta link after fetching ${allItems.length} changes for user ${userId}`);
}
return this.sortDeltaItems(allItems);
}
streamDeltaChanges(client_1, requestUrl_1, userId_1) {
return __asyncGenerator(this, arguments, function* streamDeltaChanges_1(client, requestUrl, userId, forceReset = false, dateRange, saveDeltaLink = true) {
var _a, e_2, _b, _c;
let startLink = yield __await(this.deltaLinkRepository.getDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR));
this.logger.log(`[streamDeltaChanges] Starting stream for user ${userId}, startLink: ${startLink ? 'exists' : 'none'}, forceReset: ${forceReset}`);
if (forceReset && startLink) {
this.logger.log(`[streamDeltaChanges] Force reset requested, deleting existing delta link for user ${userId}`);
yield __await(this.deltaLinkRepository.deleteDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR));
startLink = null;
}
let urlToUse;
let finalDeltaLink = null;
if (!startLink) {
this.logger.log(`[streamDeltaChanges] No delta link found, initializing from current point for user ${userId}`);
if (dateRange) {
const { startDate, endDate } = dateRange;
urlToUse = `${requestUrl}?startDateTime=${startDate.toISOString()}&endDateTime=${endDate.toISOString()}`;
this.logger.log(`[streamDeltaChanges] Using date range: ${startDate.toISOString()} to ${endDate.toISOString()}`);
}
else {
urlToUse = requestUrl;
}
}
else {
this.logger.log(`[streamDeltaChanges] Using existing delta link for incremental sync for user ${userId}`);
urlToUse = startLink;
}
let pageCount = 0;
try {
for (var _d = true, _e = __asyncValues(this.fetchDeltaPagesCore(client, urlToUse, Number(userId))), _f; _f = yield __await(_e.next()), _a = _f.done, !_a; _d = true) {
_c = _f.value;
_d = false;
const page = _c;
pageCount++;
const sortedBatch = this.sortDeltaItems(page.items);
this.logger.log(`[streamDeltaChanges] Yielding page ${pageCount} with ${sortedBatch.length} sorted items for user ${userId}`);
yield yield __await(sortedBatch);
if (page.isLastPage && page.deltaLink) {
finalDeltaLink = page.deltaLink;
}
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (!_d && !_a && (_b = _e.return)) yield __await(_b.call(_e));
}
finally { if (e_2) throw e_2.error; }
}
if (finalDeltaLink && saveDeltaLink) {
yield __await(this.saveDeltaLink(Number(userId), resource_type_enum_1.ResourceType.CALENDAR, finalDeltaLink));
this.logger.log(`[streamDeltaChanges] Saved delta link after streaming ${pageCount} pages for user ${userId}`);
}
else if (finalDeltaLink && !saveDeltaLink) {
this.logger.log(`[streamDeltaChanges] Delta link discarded (saveDeltaLink=false) after streaming ${pageCount} pages for user ${userId}`);
}
else {
this.logger.warn(`[streamDeltaChanges] No delta link received after streaming ${pageCount} pages for user ${userId}`);
}
return yield __await(finalDeltaLink);
});
}
async initializeDeltaLink(client, requestUrl, userId, resourceType, dateRange) {
this.logger.log(`[initializeDeltaLink] Initializing delta link and fetching current items for user ${userId}`);
let urlWithDateRange = requestUrl;
if (dateRange) {
const { startDate, endDate } = dateRange;
urlWithDateRange = `${requestUrl}?startDateTime=${startDate.toISOString()}&endDateTime=${endDate.toISOString()}`;
this.logger.log(`[initializeDeltaLink] Using date range: ${startDate.toISOString()} to ${endDate.toISOString()}`);
}
const { items: allItems, deltaLink: lastDeltaLink } = await this.fetchAllDeltaPages(client, urlWithDateRange, userId);
if (!lastDeltaLink) {
throw new Error('Failed to initialize delta link - no delta link received from Microsoft Graph');
}
await this.saveDeltaLink(userId, resourceType, lastDeltaLink);
this.logger.log(`[initializeDeltaLink] Delta link initialized and saved for user ${userId}, returning ${allItems.length} items to process`);
return allItems;
}
async saveDeltaLink(userId, resourceType, deltaLink) {
await this.deltaLinkRepository.saveDeltaLink(userId, resourceType, deltaLink);
this.logger.debug(`[saveDeltaLink] Saved delta link for user ${userId}, resource ${resourceType}`);
}
getDeltaLink(response) {
return response["@odata.deltaLink"] || null;
}
};
exports.DeltaSyncService = DeltaSyncService;
exports.DeltaSyncService = DeltaSyncService = DeltaSyncService_1 = __decorate([
(0, common_1.Injectable)(),
__metadata("design:paramtypes", [outlook_delta_link_repository_1.OutlookDeltaLinkRepository])
], DeltaSyncService);
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