[Smart Chain] Add config (#1206)

* Add smart chain config

* update bsc sample config

coin/coins.yml

@@ -396,3 +396,12 @@
   decimals: 18
   blockTime: 6000
   sampleAddress: 'erd12tqtt5zcg6vpw65y4hkanvt49kzq695sr3ctuszjy92xw0ppzcssy2xd5r'
+
+- id: 10000714
+  symbol: BNB
+  preferedSymbol: BSC
+  handle: bsc
+  name: 'Binance Smart Chain'
+  decimals: 18
+  blockTime: 3000
+  sampleAddress: '0x3efb67b34a9b69b54d4027e044954f483dc31678'

coin/gen.go

@@ -6,12 +6,13 @@
 package main
 
 import (
-	"gopkg.in/yaml.v2"
 	"html/template"
 	"log"
 	"os"
 	"strings"
 	"time"
+
+	"gopkg.in/yaml.v2"
 )
 
 const (
@@ -32,6 +33,7 @@ type Coin struct {
 	ID               uint
 	Handle           string
 	Symbol           string
+	PreferedSymbol   string
 	Name             string
 	Decimals         uint
 	BlockTime        int
@@ -45,16 +47,27 @@ func (c *Coin) String() string {
 
 const (
 {{- range .Coins }}
+{{- if .PreferedSymbol}}
+	{{ .PreferedSymbol }} = {{ .ID }}
+{{- else}}
 	{{ .Symbol }} = {{ .ID }}
+{{- end}}
 {{- end }}
 )
 
 var Coins = map[uint]Coin{
 {{- range .Coins }}
+{{- if .PreferedSymbol }}
+	{{ .PreferedSymbol }}: {
+{{- else }}
 	{{ .Symbol }}: {
+{{- end }}
 		ID:               {{.ID}},
 		Handle:           "{{.Handle}}",
 		Symbol:           "{{.Symbol}}",
+{{- if .PreferedSymbol }}
+		PreferedSymbol:   "{{.PreferedSymbol}}",
+{{- end }}
 		Name:             "{{.Name}}",
 		Decimals:         {{.Decimals}},
 		BlockTime:        {{.BlockTime}},
@@ -65,8 +78,12 @@ var Coins = map[uint]Coin{
 }
 
 {{- range .Coins }}
-func {{ .Handle.Upper }}() Coin {
+func {{ .Handle.Capitalize }}() Coin {
+{{- if .PreferedSymbol }}
+	return Coins[{{ .PreferedSymbol }}]
+{{- else }}
 	return Coins[{{ .Symbol }}]
+{{- end}}
 }
 
 {{- end }}
@@ -76,14 +93,15 @@ func {{ .Handle.Upper }}() Coin {
 
 type Handle string
 
-func (h Handle) Upper() string {
+func (h Handle) Capitalize() string {
 	return strings.Title(string(h))
 }
 
 type Coin struct {
 	ID               uint   `yaml:"id"`
 	Handle           Handle `yaml:"handle"`
 	Symbol           string `yaml:"symbol"`
+	PreferedSymbol   string `yaml:"preferedSymbol,omitempty"`
 	Name             string `yaml:"name"`
 	Decimals         uint   `yaml:"decimals"`
 	BlockTime        int    `yaml:"blockTime"`

coin/gen_test.go

@@ -2,12 +2,13 @@ package coin
 
 import (
 	"fmt"
-	"github.com/stretchr/testify/assert"
-	"gopkg.in/yaml.v2"
 	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v2"
 )
 
 const (
@@ -19,6 +20,7 @@ type TestCoin struct {
 	ID               uint   `yaml:"id"`
 	Handle           string `yaml:"handle"`
 	Symbol           string `yaml:"symbol"`
+	PreferedSymbol   string `yaml:"preferedSymbol,omitempty"`
 	Name             string `yaml:"name"`
 	Decimals         uint   `yaml:"decimals"`
 	BlockTime        int    `yaml:"blockTime"`
@@ -69,8 +71,14 @@ func TestCoinFile(t *testing.T) {
 		s := strings.Title(want.Handle)
 		method := fmt.Sprintf("func %s() Coin", s)
 		assert.True(t, strings.Contains(code, method), "Coin method not found")
-		enum := fmt.Sprintf("%s = %d", want.Symbol, want.ID)
+		var enum string
+		if want.PreferedSymbol != "" {
+			enum = fmt.Sprintf("%s = %d", want.PreferedSymbol, want.ID)
+		} else {
+			enum = fmt.Sprintf("%s = %d", want.Symbol, want.ID)
+		}
 		assert.True(t, strings.Contains(code, enum), "Coin enum not found")
+
 	}
 }
 

config.yml

@@ -225,3 +225,7 @@ near:
 
 elrond:
   api: https://api.elrond.com
+
+# bsc:
+  # api: <blockbook api>
+  # rpc: <rpc>

platform/platform.go

@@ -2,6 +2,7 @@ package platform
 
 import (
 	"fmt"
+
 	"github.com/trustwallet/blockatlas/platform/kava"
 
 	"github.com/spf13/viper"
@@ -107,6 +108,7 @@ func getAllHandlers() blockatlas.Platforms {
 		coin.Callisto().Handle:     ethereum.Init(coin.CLO, GetApiVar(coin.CLO), GetRpcVar(coin.CLO)),
 		coin.Wanchain().Handle:     ethereum.Init(coin.WAN, GetApiVar(coin.WAN), GetRpcVar(coin.WAN)),
 		coin.Tomochain().Handle:    ethereum.Init(coin.TOMO, GetApiVar(coin.TOMO), GetRpcVar(coin.TOMO)),
+		coin.Bsc().Handle:          ethereum.InitWithBlockbook(coin.BSC, GetApiVar(coin.BSC), GetRpcVar(coin.BSC)),
 		coin.Ethereum().Handle:     ethereum.InitWitCollection(coin.ETH, GetApiVar(coin.ETH), GetRpcVar(coin.ETH), GetVar("ethereum.blockbook_api"), GetVar("ethereum.collections_api"), GetVar("ethereum.collections_api_key")),
 		coin.Near().Handle:         near.Init(GetApiVar(coin.NEAR)),
 		coin.Elrond().Handle:       elrond.Init(coin.ERD, GetApiVar(coin.ERD)),