Ana/emoney upgrade (mergeable) (#282)

* update emoney api_url

* fix denom. add default fiat currency

* fix rpc endpoint

data/networks.json

@@ -135,8 +135,8 @@
     "id": "emoney-testnet",
     "title": "e-Money Testnet",
     "chain_id": "lilmermaid-4",
-    "api_url": "https://emoney-lilmermaid-4.lunie.io",
-    "rpc_url": "wss://emoney-lilmermaid-4.lunie.io/websocket",
+    "api_url": "http://lilmermaid.validator.network/light",
+    "rpc_url": "wss://lilmermaid.validator.network/websocket",
     "bech32_prefix": "emoney",
     "address_prefix": "emoney",
     "address_creator": "cosmos",

lib/reducers/emoneyV0-reducers.js

@@ -8,8 +8,8 @@ const Sentry = require('@sentry/node')
 
 async function totalBackedValueReducer(totalBackedValue) {
   const exchangeRates = await fetchTokenExchangeRates()
-  const token = `e`.concat(totalBackedValue.denom.substring(2))
-  const ticker = totalBackedValue.denom.substring(2).toUpperCase()
+  const token = `e`.concat(totalBackedValue.denom.substring(1))
+  const ticker = totalBackedValue.denom.substring(1).toUpperCase()
   // First we calculate the fiat net value of the token's total supply in it counterpart
   // fiat currency
   // TODO Not all the tokens have yet their rate value in the e-Money API. So the calculation

lib/source/emoneyV0-source.js

@@ -2,7 +2,6 @@ const TerraV3API = require('./terraV3-source')
 const BigNumber = require('bignumber.js')
 const fetch = require('node-fetch')
 const apiURL = `https://api.exchangeratesapi.io/latest?`
-const { UserInputError } = require('apollo-server')
 
 class EMoneyV0API extends TerraV3API {
   setReducers() {
@@ -47,18 +46,16 @@ class EMoneyV0API extends TerraV3API {
 
   // Currently this function only works for e-Money and is very e-Money centered.
   // But soon will also be enabled for other similar multiple-tokens networks like Terra.
-  async calculateFiatValue(balance, selectedFiatCurrency) {
-    if (!selectedFiatCurrency) {
-      throw new UserInputError(
-        `No fiatCurrency selected. Please, enter the fiat currency you'd like the fiat value to be displayed in`
-      )
-    }
+
+  // We just default to EUR if there is no fiat currency included in the query
+  // This is because the standard price for NGM tokens given by e-Money team is 0.50€
+  async calculateFiatValue(balance, selectedFiatCurrency = `EUR`) {
     // When e-Money goes live they will count with a trading platform where the value
     // for the different backed tokens will be changing slightly.
     // They will provide with an API for us to query these values.
     // For now we will assume a 1:1 ratio and treat each token like it were the real
     // fiat currency it represents.
-    const denom = balance.denom.substring(2).toUpperCase()
+    const denom = balance.denom.substring(1).toUpperCase()
 
     // To handle the NGM balance, first we convert to EUR value and then to the selected
     // fiat currency value