Add vars to disable writing or reading API's methods

apps/block_scout_web/config/config.exs

@@ -89,8 +89,8 @@ config :wobserver,
   mode: :plug
 
 config :block_scout_web, BlockScoutWeb.ApiRouter,
-  enabled: System.get_env("DISABLE_API") != "true",
-  enabled_update_endpoints: System.get_env("DISABLE_UPDATE_ENDPOINTS") != "true"
+  writing_enabled: System.get_env("DISABLE_WRITE_API") != "true",
+  reading_enabled: System.get_env("DISABLE_READ_API") != "true"
 
 config :block_scout_web, BlockScoutWeb.WebRouter, enabled: System.get_env("DISABLE_WEBAPP") != "true"
 

apps/block_scout_web/lib/block_scout_web/api_router.ex

@@ -1,11 +1,19 @@
+defmodule RPCTranslatorForwarder do
+  @moduledoc """
+  Phoenix router limits forwarding,
+  so this module is to forward old paths for backward compatibility
+  """
+  alias BlockScoutWeb.API.RPC.RPCTranslator
+  defdelegate init(opts), to: RPCTranslator
+  defdelegate call(conn, opts), to: RPCTranslator
+end
+
 defmodule BlockScoutWeb.ApiRouter do
   @moduledoc """
   Router for API
   """
   use BlockScoutWeb, :router
 
-  alias BlockScoutWeb.API.RPC
-
   pipeline :api do
     plug(:accepts, ["json"])
   end
@@ -13,12 +21,13 @@ defmodule BlockScoutWeb.ApiRouter do
   scope "/v1", as: :api_v1 do
     pipe_through(:api)
 
-    scope "/", BlockScoutWeb.API.V1 do
-      get("/supply", SupplyController, :supply)
+    scope "/" do
+      alias BlockScoutWeb.API.{RPC, V1}
+      get("/supply", V1.SupplyController, :supply)
 
-      post("/eth_rpc", EthController, :eth_request)
+      post("/eth_rpc", RPC.EthController, :eth_request)
 
-      forward("/", RPCTranslator, %{
+      forward("/", RPC.RPCTranslator, %{
         "block" => RPC.BlockController,
         "account" => RPC.AddressController,
         "logs" => RPC.LogsController,
@@ -31,12 +40,13 @@ defmodule BlockScoutWeb.ApiRouter do
   end
 
   # For backward compatibility. Should be removed
-  scope "/", BlockScoutWeb.API.RPC do
+  scope "/" do
+    alias BlockScoutWeb.API.RPC
     pipe_through(:api)
 
-    post("/eth_rpc", EthController, :eth_request)
+    post("/eth_rpc", RPC.EthController, :eth_request)
 
-    forward("/", RPCTranslator, %{
+    forward("/", RPCTranslatorForwarder, %{
       "block" => RPC.BlockController,
       "account" => RPC.AddressController,
       "logs" => RPC.LogsController,

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -23,19 +23,13 @@ defmodule BlockScoutWeb.Router do
     pipe_through(:api)
     get("/health", HealthController, :health)
 
-    if Application.get_env(:block_scout_web, ApiRouter)[:enabled_update_endpoints] do
+    if Application.get_env(:block_scout_web, ApiRouter)[:writing_enabled] do
       post("/decompiled_smart_contract", DecompiledSmartContractController, :create)
       post("/verified_smart_contracts", VerifiedSmartContractController, :create)
     end
   end
 
-  scope "/verify_smart_contract" do
-    pipe_through(:api)
-
-    post("/contract_verifications", BlockScoutWeb.AddressContractVerificationController, :create)
-  end
-
-  if Application.get_env(:block_scout_web, ApiRouter)[:enabled] do
+  if Application.get_env(:block_scout_web, ApiRouter)[:reading_enabled] do
     forward("/api", ApiRouter)
 
     # Needs to be 200 to support the schema introspection for graphiql
@@ -70,6 +64,12 @@ defmodule BlockScoutWeb.Router do
     get("/eth_rpc_api_docs", APIDocsController, :eth_rpc)
   end
 
+  scope "/verify_smart_contract" do
+    pipe_through(:api)
+
+    post("/contract_verifications", BlockScoutWeb.AddressContractVerificationController, :create)
+  end
+
   if Application.get_env(:block_scout_web, WebRouter)[:enabled] do
     forward("/", BlockScoutWeb.WebRouter)
   else

apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex

@@ -68,7 +68,7 @@
             <% end %>
           </li>
         <% end %>
-        <%= if Application.get_env(:block_scout_web, BlockScoutWeb.ApiRouter)[:enabled] or Application.get_env(:block_scout_web, :api_url) do %>
+        <%= if Application.get_env(:block_scout_web, BlockScoutWeb.ApiRouter)[:reading_enabled] || Application.get_env(:block_scout_web, :api_url) do %>
           <li class="nav-item dropdown">
             <a href="#" role="button" id="navbarAPIsDropdown" class="nav-link topnav-nav-link dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
               <span class="nav-link-icon">