add various methods needed for wallet: get price, balance, convert hex wei to eth

Makefile

@@ -1,7 +1,7 @@
 SHELL := bash
 
 build:
-	nim c -L:lib/libstatus.a -L:-lm --outdir:./bin src/nim_status_client.nim
+	nim c -L:lib/libstatus.a -d:ssl -L:-lm --outdir:./bin src/nim_status_client.nim
 
 build-osx:
-	nim c -L:lib/libstatus.dylib -L:-lm -L:"-framework Foundation -framework Security -framework IOKit -framework CoreServices" --outdir:./bin src/nim_status_client.nim
+	nim c -L:lib/libstatus.dylib -d:ssl -L:-lm -L:"-framework Foundation -framework Security -framework IOKit -framework CoreServices" --outdir:./bin src/nim_status_client.nim

nim_status_client.nimble

@@ -7,4 +7,4 @@ srcDir        = "src"
 bin           = "nim_status_client"
 
 [Deps]
-Requires: "nim >= 1.0.0, nimqml >= 0.7.0"
+Requires: "nim >= 1.0.0, nimqml >= 0.7.0, stint"

src/nim_status_client.nim

@@ -4,11 +4,14 @@ import chats
 import json
 import state
 import status/utils
+import strformat
+import strutils
 
 import status/core as status
 import status/chat as status_chat
 import status/test as status_test
 import status/types as types
+import status/wallet as status_wallet
 
 proc mainProc() =
   # From QT docs:
@@ -34,6 +37,22 @@ proc mainProc() =
   discard status_test.addPeer("enode://2c8de3cbb27a3d30cbb5b3e003bc722b126f5aef82e2052aaef032ca94e0c7ad219e533ba88c70585ebd802de206693255335b100307645ab5170e88620d2a81@47.244.221.14:443")
   echo status.callPrivateRPC("{\"jsonrpc\":\"2.0\", \"method\":\"wakuext_requestMessages\", \"params\":[{\"topics\": [\"0x7998f3c8\"]}], \"id\": 1}")
 
+  # 1. get balance of an address
+  var balance = status_wallet.getBalance("0x0000000000000000000000000000000000000000")
+  echo(fmt"balance in hex: {balance}")
+
+  # 2. convert balance to eth
+  var eth_value = status_wallet.hex2Eth(balance)
+  echo(fmt"balance in eth: {eth_value}")
+
+  # 3. get usd price of 1 eth
+  var usd_eth_price = status_wallet.getPrice("ETH", "USD")
+  echo(fmt"usd_price: {usd_eth_price}")
+
+  # 4. convert balance to usd
+  var usd_balance = parseFloat(eth_value) * parseFloat(usd_eth_price)
+  echo(fmt"balance in usd: {usd_balance}")
+
   # result.accountResult = status.queryAccounts()
 
   var sendMessage = proc (msg: string): string =

src/status/wallet.nim

@@ -0,0 +1,33 @@
+import libstatus
+import json
+import utils
+import httpclient, json
+import strformat
+import stint
+
+proc getPrice*(crypto: string, fiat: string): string =
+    var url: string = fmt"https://min-api.cryptocompare.com/data/price?fsym={crypto}&tsyms={fiat}"
+    let client = newHttpClient()
+    client.headers = newHttpHeaders({ "Content-Type": "application/json" })
+
+    let response = client.request(url)
+    $parseJson(response.body)["USD"]
+
+proc getBalance*(address: string): string =
+  let payload = %* {
+    "jsonrpc": "2.0",
+    "id": 50,
+    "method": "eth_getBalance",
+    "params": [
+        address,
+        "latest"
+    ]
+  }
+  parseJson($libstatus.callPrivateRPC($payload))["result"].str
+
+proc hex2Eth*(input: string): string =
+  var value = fromHex(Stuint[256], input)
+  var one_eth = fromHex(Stuint[256], "DE0B6B3A7640000")
+
+  var (eth, remainder) = divmod(value, one_eth)
+  fmt"{eth}.{remainder}"