Merged in fix/add-logging-when-cache-get-fails (pull request #3215)

fix: add logging when we fail to get cache data

* fix: add logging when we fail to get cache data


Approved-by: Linus Flood

packages/common/dataCache/DistributedCache/get.ts

@@ -21,7 +21,10 @@ export async function get<T>(key: string) {
     })
   )
 
-  if (!response || !response.ok || error) {
+  const isJson = response?.headers
+    .get("content-type")
+    ?.includes("application/json")
+  if (!response || !response.ok || error || !isJson) {
     if (response?.status === 404) {
       cacheLogger.debug(
         `Miss '${key}' took ${(performance.now() - perf).toFixed(2)}ms`
@@ -29,11 +32,19 @@ export async function get<T>(key: string) {
       return undefined
     }
 
+    cacheLogger.error(`Failed to get cache for key ${key}`, {
+      cacheKey: key,
+      statusCode: response?.status,
+      statusText: response?.statusText,
+      contentType: response?.headers.get("content-type"),
+    })
+
     Sentry.captureException(error ?? new Error("Unable to GET cachekey"), {
       extra: {
         cacheKey: key,
         statusCode: response?.status,
         statusText: response?.statusText,
+        contentType: response?.headers.get("content-type"),
       },
     })
     return undefined
@@ -45,8 +56,8 @@ export async function get<T>(key: string) {
 
   if (jsonError) {
     cacheLogger.error("Failed to parse cache response", {
-      key,
-      error: jsonError,
+      cacheKey: key,
+      error: serializeError(jsonError),
     })
 
     await deleteKey(key)
@@ -59,3 +70,23 @@ export async function get<T>(key: string) {
 
   return data?.data
 }
+
+function serializeError(error: unknown):
+  | string
+  | {
+      name: string
+      message: string
+      stack?: string
+      cause?: unknown
+    } {
+  if (error instanceof Error) {
+    return {
+      name: error.name,
+      message: error.message,
+      stack: error.stack,
+      cause: error.cause ? serializeError(error.cause) : undefined,
+    }
+  } else {
+    return String(error)
+  }
+}