Merge branch 'master' into ab-add-contract-code

README.md

@@ -59,6 +59,7 @@ Currently available block explorers (i.e. Etherscan and Etherchain) are closed s
 * [Fuse Network](https://explorer.fuse.io/)
 * [ARTIS](https://explorer.sigma1.artis.network)
 * [SafeChain](https://explorer.safechain.io)
+* [SpringChain](https://explorer.springrole.com/)
 
 ### Visual Interface
 

apps/indexer/config/config.exs

@@ -36,6 +36,7 @@ config :indexer,
   memory_limit: 1 <<< 30
 
 # config :indexer, Indexer.ReplacedTransaction.Supervisor, disabled?: true
+# config :indexer, Indexer.Block.Reward.Supervisor, disabled?: true 
 
 config :indexer, Indexer.Tracer,
   service: :indexer,

apps/indexer/lib/indexer/block/reward/fetcher.ex

@@ -18,6 +18,7 @@ defmodule Indexer.Block.Reward.Fetcher do
   alias Explorer.Chain.{Block, Wei}
   alias Indexer.Address.CoinBalances
   alias Indexer.{AddressExtraction, BufferedTask, CoinBalance, Tracer}
+  alias Indexer.Block.Reward.Supervisor, as: BlockRewardSupervisor
 
   @behaviour BufferedTask
 
@@ -34,7 +35,11 @@ defmodule Indexer.Block.Reward.Fetcher do
   """
   @spec async_fetch([Block.block_number()]) :: :ok
   def async_fetch(block_numbers) when is_list(block_numbers) do
-    BufferedTask.buffer(__MODULE__, block_numbers)
+    if BlockRewardSupervisor.disabled?() do
+      :ok
+    else
+      BufferedTask.buffer(__MODULE__, block_numbers)
+    end
   end
 
   @doc false

apps/indexer/lib/indexer/block/reward/supervisor.ex

@@ -22,7 +22,15 @@ defmodule Indexer.Block.Reward.Supervisor do
   end
 
   def start_link(arguments, gen_server_options \\ []) do
-    Supervisor.start_link(__MODULE__, arguments, Keyword.put_new(gen_server_options, :name, __MODULE__))
+    if disabled?() do
+      :ignore
+    else
+      Supervisor.start_link(__MODULE__, arguments, Keyword.put_new(gen_server_options, :name, __MODULE__))
+    end
+  end
+
+  def disabled?() do
+    Application.get_env(:indexer, __MODULE__, [])[:disabled?] == true
   end
 
   @impl Supervisor