Add web3 service

odysseyhack · Apr 13, 2019 · 90fcd1e · 90fcd1e
1 parent 7b424ac
commit 90fcd1e
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Showing 4 changed files with 56 additions and 2 deletions.
diff --git a/rails-api/.ruby-version b/rails-api/.ruby-version
@@ -1 +1 @@
-2.4.4
+2.4.4
diff --git a/rails-api/Gemfile b/rails-api/Gemfile
@@ -29,6 +29,9 @@ gem 'bootsnap', '>= 1.1.0', require: false
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
 gem 'rack-cors'
 
+gem 'eth'
+gem 'ethereum.rb'
+
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]

diff --git a/rails-api/Gemfile.lock b/rails-api/Gemfile.lock
@@ -59,6 +59,7 @@ GEM
     devise-jwt (0.5.8)
       devise (~> 4.0)
       warden-jwt_auth (~> 0.3.5)
+    digest-sha3 (1.1.0)
     dotenv (2.5.0)
     dry-auto_inject (0.6.0)
       dry-container (>= 0.3.4)
@@ -68,7 +69,19 @@ GEM
       concurrent-ruby (~> 1.0)
       dry-configurable (~> 0.1, >= 0.1.3)
     erubi (1.7.1)
+    eth (0.4.10)
+      digest-sha3 (~> 1.1)
+      ffi (~> 1.0)
+      money-tree (~> 0.10.0)
+      rlp (~> 0.7.3)
+      scrypt (~> 3.0.6)
+    ethereum.rb (2.2)
+      activesupport (>= 4.0)
+      digest-sha3 (~> 1.1)
     ffi (1.9.25)
+    ffi-compiler (1.0.1)
+      ffi (>= 1.0.0)
+      rake
     globalid (0.4.1)
       activesupport (>= 4.2.0)
     i18n (1.1.1)
@@ -93,6 +106,8 @@ GEM
     mini_mime (1.0.1)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
+    money-tree (0.10.0)
+      ffi
     msgpack (1.2.4)
     multi_json (1.13.1)
     nio4r (2.3.1)
@@ -136,7 +151,10 @@ GEM
     responders (2.4.0)
       actionpack (>= 4.2.0, < 5.3)
       railties (>= 4.2.0, < 5.3)
+    rlp (0.7.3)
     ruby_dep (1.5.0)
+    scrypt (3.0.6)
+      ffi-compiler (>= 1.0, < 2.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -168,6 +186,8 @@ DEPENDENCIES
   devise
   devise-jwt
   dotenv
+  eth
+  ethereum.rb
   jbuilder (~> 2.5)
   listen (>= 3.0.5, < 3.2)
   pg (>= 0.18, < 2.0)
@@ -180,4 +200,4 @@ RUBY VERSION
    ruby 2.4.4p296
 
 BUNDLED WITH
-   1.16.6
+   2.0.1
diff --git a/rails-api/app/services/web3_service.rb b/rails-api/app/services/web3_service.rb
@@ -0,0 +1,31 @@
+class Web3Service
+  def initialize
+    contract_address = "0x539bc5Ef3907DC37eFE798926A7D52d75C8FA512"
+    dummy_private_key = "8695fe6ca35eeb46a6e920093e97ed374aaab45b92e7103cd6b65d1975c018d7"
+
+    client = Ethereum::HttpClient.new('http://localhost:8545')
+
+    @contract = Ethereum::Contract.create(
+      client: client,
+      name: "Certificates",
+      truffle: { paths: [ "#{Rails.root}/../energy" ]},
+      address: contract_address
+    )
+
+    # key = Eth::Key.new
+    # p key.private_hex
+    # p key.public_hex
+    # p key.address
+    # @contract.key = key
+
+    @contract.key = Eth::Key.new(priv: dummy_private_key)
+  end
+
+  def push_certificate(id, amount, timestamp, certificate_type)
+    @contract.transact.push_certificate(id, amount, timestamp, certificate_type)
+  end
+
+  def certificates(id)
+    @contract.call.certificates(id)
+  end
+end