feat: allow overriding withCDN via env-var

README.md

@@ -118,6 +118,7 @@ PORT=3456                      # Daemon port
 DATABASE_PATH=./pins.db        # SQLite database
 CAR_STORAGE_PATH=./cars        # CAR file directory
 LOG_LEVEL=info                 # Logging level
+WITH_CDN=true                  # Enable/Disable CDN for content uploads
 ```
 
 ### Default Directories
@@ -193,4 +194,4 @@ Dual-licensed under [MIT](LICENSE-MIT) + [Apache 2.0](LICENSE-APACHE)
 
 - [IPFS Pinning Service API](https://ipfs.github.io/pinning-services-api-spec/)
 - [Synapse SDK](https://github.com/filecoin-project/synapse-sdk)
-- [USDFC Documentation](https://docs.secured.finance/usdfc-stablecoin)
+- [USDFC Documentation](https://docs.secured.finance/usdfc-stablecoin)

src/common/env-vars.ts

@@ -0,0 +1,11 @@
+/**
+ * Generic helpers for environment variable parsing and validation.
+ */
+
+export const envToBool = (value: string | undefined, defaultValue: boolean): boolean => {
+  if (value === undefined) return defaultValue
+  const normalized = value.trim().toLowerCase()
+  if (['1', 'true', 'yes', 'on'].includes(normalized)) return true
+  if (['0', 'false', 'no', 'off'].includes(normalized)) return false
+  return defaultValue
+}

src/synapse/service.ts

@@ -8,6 +8,7 @@ import {
   type SynapseOptions,
 } from '@filoz/synapse-sdk'
 import type { Logger } from 'pino'
+import { envToBool } from '../common/env-vars.js'
 import type { Config } from '../config.js'
 
 /**
@@ -22,7 +23,7 @@ const DEFAULT_DATA_SET_METADATA = {
  * Default configuration for creating storage contexts
  */
 const DEFAULT_STORAGE_CONTEXT_CONFIG = {
-  withCDN: false, // CDN not needed for Filecoin Pin currently
+  withCDN: envToBool(process.env.WITH_CDN, false),
   metadata: DEFAULT_DATA_SET_METADATA,
 } as const