feat(cache): add flag to choose cache strategy if stale

stephanebachelier · Apr 24, 2016 · d228174 · d228174
1 parent 44f7d36
commit d228174
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/index.js b/lib/index.js
@@ -12,6 +12,7 @@ function cache (config = {}) {
   config.maxAge = config.maxAge || 0
   config.readCache = config.readCache || readCache
   config.serialize = config.serialize || serialize
+  config.clearOnStale = config.clearOnStale !== undefined ? config.clearOnStale : true
 
   config.exclude = config.exclude || {}
   config.exclude.query = config.exclude.query || true
@@ -56,7 +57,7 @@ function cache (config = {}) {
       return config.readCache(req, config.log)(value)
         .catch(err => {
           // clean up cache if stale
-          err.reason === 'cache-stale' ? config.store.removeItem(uuid).then(f) : f()
+          config.clearOnStale && err.reason === 'cache-stale' ? config.store.removeItem(uuid).then(f) : f()
         })
     })
   }