feat(explorer): take batch ttl from env (#1667)

Author: Oppen

explorer/.env.dev

@@ -22,3 +22,6 @@ DEBUG_ERRORS=true
 TRACKER_API_URL=http://localhost:3030
 
 MAX_BATCH_SIZE=268435456 # 256 MiB
+
+# Time we wait for a batch to be verified before marking it stale
+BATCH_TTL_MINUTES=5

explorer/.env.example

@@ -20,3 +20,6 @@ DEBUG_ERRORS=<true|false>
 
 # Tracker API
 TRACKER_API_URL=<tracker_api_url>
+
+# Time we wait for a batch to be verified before marking it stale
+BATCH_TTL_MINUTES=5

explorer/lib/explorer_web/live/utils.ex

@@ -148,7 +148,8 @@ defmodule ExplorerWeb.Helpers do
   end
 
   def is_stale?(batch) do
-    DateTime.add(batch.submission_timestamp, 5, :minute)
+    ttl = Utils.batch_ttl_minutes()
+    DateTime.add(batch.submission_timestamp, ttl, :minute)
     |> DateTime.before?(DateTime.utc_now())
   end
 
@@ -297,6 +298,11 @@ defmodule Utils do
     end
   end
 
+  def batch_ttl_minutes() do
+    System.get_env("BATCH_TTL_MINUTES")
+    |> String.to_integer()
+  end
+
   def process_batch(%BatchDB{} = batch) do
     case get_proof_hashes(batch) do
       {:ok, proof_hashes} ->

explorer/start.sh

@@ -15,6 +15,7 @@ env_vars=(
   "DEBUG_ERRORS"
   "TRACKER_API_URL"
   "MAX_BATCH_SIZE"
+  "BATCH_TTL_MINUTES"
 )
 
 for var in "${env_vars[@]}"; do