feat: support manually config http timeout

Author: shaojunda

lib/ckb/api.rb

@@ -21,8 +21,8 @@ class API
     attr_reader :multi_sign_secp_cell_type_hash
     attr_reader :multi_sign_secp_group_out_point
 
-    def initialize(host: CKB::RPC::DEFAULT_URL, mode: MODE::TESTNET)
-      @rpc = CKB::RPC.new(host: host)
+    def initialize(host: CKB::RPC::DEFAULT_URL, mode: MODE::TESTNET, timeout_config: {})
+      @rpc = CKB::RPC.new(host: host, timeout_config: timeout_config)
       if mode == MODE::TESTNET || mode == MODE::MAINNET
         # For testnet chain, we can assume the second cell of the first transaction
         # in the genesis block contains default lock script we can use here.

lib/ckb/rpc.rb

@@ -28,9 +28,12 @@ class RPC
 
     DEFAULT_URL = "http://localhost:8114"
 
-    def initialize(host: DEFAULT_URL)
+    def initialize(host: DEFAULT_URL, timeout_config: {})
       @uri = URI(host)
       @http = Net::HTTP::Persistent.new
+      @http.open_timeout = timeout_config[:open_timeout] if timeout_config[:open_timeout]
+      @http.read_timeout = timeout_config[:read_timeout] if timeout_config[:read_timeout]
+      @http.write_timeout = timeout_config[:write_timeout] if timeout_config[:write_timeout]
     end
 
     def method_missing(method, *params)