t1c.dev
forked from
rocksky.app/rocksky
A decentralized music tracking and discovery platform built on AT Protocol 🎵
Use WAL-mode client and batch event inserts
tsiry-sandratraina.com
+10
-4
tap/src/drizzle.ts
+10
-4
tap/src/drizzle.ts
···
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import { drizzle } from "drizzle-orm/libsql";
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import { createClient } from "@libsql/client";
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const db = drizzle({
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connection: {
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url: Deno.env.get("TAP_CACHE_DATABASE_URL") || "file:tap-cache.db",
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},
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const client = createClient({
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url: Deno.env.get("TAP_CACHE_DATABASE_URL") || "file:tap-cache.db",
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});
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await client.execute("PRAGMA journal_mode = WAL;");
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await client.execute("PRAGMA busy_timeout = 5000;");
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await client.execute("PRAGMA synchronous = NORMAL;");
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await client.execute("PRAGMA cache_size = -10000;");
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const db = drizzle(client);
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export default { db };
+84
-41
tap/src/tap.ts
+84
-41
tap/src/tap.ts
···
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import schema from "./schema/mod.ts";
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import _ from "@es-toolkit/es-toolkit/compat";
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import { broadcastEvent } from "./main.ts";
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import type { InsertEvent } from "./schema/event.ts";
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export const TAP_WS_URL = Deno.env.get("TAP_URL") || "http://localhost:2480";
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const BATCH_SIZE = 50;
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const BATCH_TIMEOUT_MS = 100;
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export default function connectToTap() {
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const tap = new Tap(TAP_WS_URL);
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const indexer = new SimpleIndexer();
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const indexer = new SimpleIndexer();
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// Batch buffers
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let eventBatch: InsertEvent[] = [];
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let batchTimer: number | null = null;
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async function flushBatch() {
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if (eventBatch.length === 0) return;
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const toInsert = [...eventBatch];
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eventBatch = [];
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try {
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const results = await ctx.db
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.insert(schema.events)
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.values(toInsert)
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.onConflictDoNothing()
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.returning()
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.execute();
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for (const result of results) {
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broadcastEvent(result);
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}
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logger.info`📝 Batch inserted ${results.length} events`;
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} catch (error) {
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logger.error`Failed to insert batch: ${error}`;
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}
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}
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indexer.identity(async (evt) => {
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const result = await ctx.db
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.insert(schema.events)
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.values({
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id: evt.id,
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type: evt.type,
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did: evt.did,
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handle: evt.handle,
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status: evt.status,
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isActive: evt.isActive,
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})
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.onConflictDoNothing()
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.returning()
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.execute();
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function addToBatch(event: InsertEvent) {
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eventBatch.push(event);
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if (batchTimer !== null) {
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clearTimeout(batchTimer);
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}
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if (result.length > 0) {
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broadcastEvent(result[0]);
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if (eventBatch.length >= BATCH_SIZE) {
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flushBatch();
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} else {
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batchTimer = setTimeout(() => {
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flushBatch();
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batchTimer = null;
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}, BATCH_TIMEOUT_MS);
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}
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}
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indexer.identity(async (evt) => {
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addToBatch({
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id: evt.id,
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type: evt.type,
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did: evt.did,
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handle: evt.handle,
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status: evt.status,
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isActive: evt.isActive,
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action: null,
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rev: null,
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collection: null,
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rkey: null,
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record: null,
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cid: null,
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live: null,
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});
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logger.info`${evt.did} updated identity: ${evt.handle} (${evt.status})`;
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});
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indexer.record(async (evt) => {
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logger.info`${evt}`;
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const result = await ctx.db
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.insert(schema.events)
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.values({
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id: evt.id,
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type: evt.type,
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action: evt.action,
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did: evt.did,
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rev: evt.rev,
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collection: evt.collection,
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rkey: evt.rkey,
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record: JSON.stringify(evt.record),
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cid: evt.cid,
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live: evt.live,
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})
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.onConflictDoNothing()
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.returning()
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.execute();
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addToBatch({
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id: evt.id,
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type: evt.type,
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action: evt.action,
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did: evt.did,
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rev: evt.rev,
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collection: evt.collection,
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rkey: evt.rkey,
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record: JSON.stringify(evt.record),
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cid: evt.cid,
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live: evt.live,
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handle: null,
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status: null,
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isActive: null,
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});
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if (result.length > 0) {
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broadcastEvent(result[0]);
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}
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const uri = `at://${_.get(result, "[0].did")}/${_.get(result, "[0].collection")}/${_.get(result, "[0].rkey")}`;
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logger.info`New record inserted: ${result.length} ${uri}`;
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const uri = `at://${evt.did}/${evt.collection}/${evt.rkey}`;
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logger.info`New record: ${uri}`;
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});
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indexer.error((err) => logger.error`${err}`);
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const channel = tap.channel(indexer);
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channel.start();
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globalThis.addEventListener("beforeunload", () => {
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flushBatch();
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});
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}