chore: misc cleanups and refactoring

Author: rvagg

src/car-blockstore.ts

@@ -1,6 +1,6 @@
 import { EventEmitter } from 'node:events'
-import { createWriteStream, existsSync, type WriteStream } from 'node:fs'
-import { mkdir, open } from 'node:fs/promises'
+import { createWriteStream, type WriteStream } from 'node:fs'
+import { mkdir, open, stat } from 'node:fs/promises'
 import { dirname } from 'node:path'
 import { Readable, Transform } from 'node:stream'
 import { pipeline } from 'node:stream/promises'
@@ -129,7 +129,9 @@ export class CARWritingBlockstore extends EventEmitter implements Blockstore {
     await new Promise((resolve) => setTimeout(resolve, 20))
 
     // Verify file was created
-    if (!existsSync(this.outputPath)) {
+    try {
+      await stat(this.outputPath)
+    } catch {
       throw new Error(`Failed to create CAR file at ${this.outputPath}`)
     }
 

src/filecoin-pinning-server.ts

@@ -4,7 +4,7 @@ import type { Logger } from 'pino'
 import type { Config } from './config.js'
 import { FilecoinPinStore, type PinOptions } from './filecoin-pin-store.js'
 import type { ServiceInfo } from './server.js'
-import { initializeSynapse } from './synapse/service.js'
+import { setupSynapse } from './synapse/service.js'
 
 declare module 'fastify' {
   interface FastifyRequest {
@@ -25,8 +25,8 @@ export async function createFilecoinPinningServer(
   logger: Logger,
   serviceInfo: ServiceInfo
 ): Promise<{ server: FastifyInstance; pinStore: FilecoinPinStore }> {
-  // Initialize Synapse
-  const synapseService = await initializeSynapse(config, logger)
+  // Set up Synapse service
+  const synapseService = await setupSynapse(config, logger)
 
   // Create our custom Filecoin pin store with Synapse service
   const filecoinPinStore = new FilecoinPinStore({