1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
import { and, eq, inArray } from "drizzle-orm";
import { DequeuedJob, Runner } from "liteque";
import Parser from "rss-parser";
import { buildImpersonatingTRPCClient } from "trpc";
import type { ZFeedRequestSchema } from "@hoarder/shared/queues";
import { db } from "@hoarder/db";
import { rssFeedImportsTable, rssFeedsTable } from "@hoarder/db/schema";
import logger from "@hoarder/shared/logger";
import { FeedQueue } from "@hoarder/shared/queues";
import { BookmarkTypes } from "@hoarder/shared/types/bookmarks";
export class FeedWorker {
static build() {
logger.info("Starting feed worker ...");
const worker = new Runner<ZFeedRequestSchema>(
FeedQueue,
{
run: run,
onComplete: async (job) => {
const jobId = job.id;
logger.info(`[feed][${jobId}] Completed successfully`);
await db
.update(rssFeedsTable)
.set({ lastFetchedStatus: "success", lastFetchedAt: new Date() })
.where(eq(rssFeedsTable.id, job.data?.feedId));
},
onError: async (job) => {
const jobId = job.id;
logger.error(
`[feed][${jobId}] Feed fetch job failed: ${job.error}\n${job.error.stack}`,
);
if (job.data) {
await db
.update(rssFeedsTable)
.set({ lastFetchedStatus: "failure", lastFetchedAt: new Date() })
.where(eq(rssFeedsTable.id, job.data?.feedId));
}
},
},
{
concurrency: 1,
pollIntervalMs: 1000,
timeoutSecs: 30,
},
);
return worker;
}
}
async function run(req: DequeuedJob<ZFeedRequestSchema>) {
const jobId = req.id;
const feed = await db.query.rssFeedsTable.findFirst({
where: eq(rssFeedsTable.id, req.data.feedId),
});
if (!feed) {
throw new Error(
`[feed][${jobId}] Feed with id ${req.data.feedId} not found`,
);
}
const response = await fetch(feed.url, {
signal: AbortSignal.timeout(5000),
});
const contentType = response.headers.get("content-type");
if (!contentType || !contentType.includes("application/xml")) {
throw new Error(
`[feed][${jobId}] Feed with id ${req.data.feedId} is not a valid RSS feed`,
);
}
const xmlData = await response.text();
logger.info(
`[feed][${jobId}] Successfully fetched feed "${feed.name}" (${feed.id}) ...`,
);
const parser = new Parser();
const feedData = await parser.parseString(xmlData);
logger.info(
`[feed][${jobId}] Found ${feedData.items.length} entries in feed "${feed.name}" (${feed.id}) ...`,
);
if (feedData.items.length === 0) {
logger.info(`[feed][${jobId}] No entries found.`);
return;
}
const exitingEntries = await db.query.rssFeedImportsTable.findMany({
where: and(
eq(rssFeedImportsTable.rssFeedId, feed.id),
inArray(
rssFeedImportsTable.entryId,
feedData.items
.map((item) => item.guid)
.filter((id): id is string => !!id),
),
),
});
const newEntries = feedData.items.filter(
(item) =>
!exitingEntries.some((entry) => entry.entryId === item.guid) && item.link,
);
if (newEntries.length === 0) {
logger.info(
`[feed][${jobId}] No new entries found in feed "${feed.name}" (${feed.id}).`,
);
return;
}
logger.info(
`[feed][${jobId}] Found ${newEntries.length} new entries in feed "${feed.name}" (${feed.id}) ...`,
);
const trpcClient = await buildImpersonatingTRPCClient(feed.userId);
const createdBookmarks = await Promise.allSettled(
newEntries.map((item) =>
trpcClient.bookmarks.createBookmark({
type: BookmarkTypes.LINK,
url: item.link!,
}),
),
);
// It's ok if this is not transactional as the bookmarks will get linked in the next iteration.
await db
.insert(rssFeedImportsTable)
.values(
newEntries.map((item, idx) => {
const b = createdBookmarks[idx];
return {
entryId: item.guid!,
bookmarkId: b.status === "fulfilled" ? b.value.id : null,
rssFeedId: feed.id,
};
}),
)
.onConflictDoNothing();
logger.info(
`[feed][${jobId}] Successfully imported ${newEntries.length} new enteries from feed "${feed.name}" (${feed.id}).`,
);
return Promise.resolve();
}
|
