Add Explorer field to model

src/main/kotlin/org/ethereum/lists/chains/Main.kt

@@ -138,8 +138,6 @@ fun checkIcon(icon: File) {
 fun checkChain(chainFile: File, connectRPC: Boolean) {
     println("processing $chainFile")
 
-    parseWithMoshi(chainFile)
-
     val jsonObject = Klaxon().parseJsonObject(chainFile.reader())
     val chainAsLong = getNumber(jsonObject, "chainId")
 
@@ -248,6 +246,8 @@ fun checkChain(chainFile: File, connectRPC: Boolean) {
 
     }
 
+    parseWithMoshi(chainFile)
+
     if (connectRPC) {
         if (jsonObject["rpc"] is List<*>) {
             (jsonObject["rpc"] as List<*>).forEach {

src/main/kotlin/org/ethereum/lists/chains/model/Chain.kt

@@ -1,13 +1,14 @@
 package org.ethereum.lists.chains.model
 
 data class Chain(
-        val name: String,
-        val shortName: String,
-        val chain: String,
-        val network: String,
-        val chainId: Long,
-        val networkId: Long,
-        val rpc: List<String>,
-        val faucets: List<String>,
-        val infoURL: String,
+    val name: String,
+    val shortName: String,
+    val chain: String,
+    val network: String,
+    val chainId: Long,
+    val networkId: Long,
+    val rpc: List<String>,
+    val faucets: List<String>,
+    val explorers: List<Explorer>?,
+    val infoURL: String,
 )

src/main/kotlin/org/ethereum/lists/chains/model/Explorer.kt

@@ -0,0 +1,7 @@
+package org.ethereum.lists.chains.model
+
+data class Explorer(
+    val name: String,
+    val url: String,
+    val standard: String
+)

src/test/kotlin/org/ethereum/lists/chains/TheChainChecker.kt

@@ -172,7 +172,7 @@ class TheChainChecker {
 
     @Test(expected = JsonEncodingException::class)
     fun shouldFailForExtraComma() {
-        val file = getFile("invalid/eip155-extracomma.json")
+        val file = getFile("invalid/extracomma/eip155-1.json")
 
         checkChain(file, false)
     }

src/test/resources/test_chains/invalid/extracomma/eip155-1.json

@@ -9,6 +9,11 @@
     "https://mainnet.infura.io/v3/${INFURA_API_KEY}",
     "https://api.mycryptoapi.com/eth"
   ],
+  "nativeCurrency": {
+    "name": "Ether",
+    "symbol": "ETH",
+    "decimals": 18
+  },
   "faucets": [],
   "infoURL": "https://ethereum.org",
 }

src/test/resources/test_chains/invalid/sameshortname/eip155-1.json

@@ -9,6 +9,11 @@
     "https://mainnet.infura.io/v3/${INFURA_API_KEY}",
     "https://api.mycryptoapi.com/eth"
   ],
+  "nativeCurrency": {
+    "name": "Görli Ether",
+    "symbol": "GOR",
+    "decimals": 18
+  },
   "faucets": [],
   "infoURL": "https://ethereum.org"
 }