updated transferMethod query to fetch default currency code if exist. (#148)

* updated transferMethod query to fetch default currency code if exist.

* Added mDefaultCurrencyCode to store the default currency code and initialize it inside the constructor.

Author: akalichety-hw

core/src/main/java/com/hyperwallet/android/model/graphql/keyed/Country.java

@@ -38,6 +38,8 @@ public class Country implements KeyedNode {
     private static final String CURRENCIES = "currencies";
 
     private final Set<Currency> mCurrencies;
+
+    private final String mDefaultCurrencyCode;
     private final String mCode;
     private final MappedConnection<Currency> mCurrencyMappedConnection;
     private final String mName;
@@ -52,6 +54,7 @@ public Country(@NonNull final JSONObject country) throws JSONException, NoSuchMe
         mCode = country.optString(COUNTRY_CODE);
         mName = country.optString(COUNTRY_NAME);
         mCurrencies = new LinkedHashSet<>(1);
+        mDefaultCurrencyCode = country.optString("defaultCurrencyCode");
         JSONObject currencies = country.optJSONObject(CURRENCIES);
         if (currencies != null && currencies.length() != 0) {
             mCurrencyMappedConnection = new MappedConnection<>(currencies, Currency.class);
@@ -78,6 +81,14 @@ public String getName() {
         return mName;
     }
 
+    /**
+     * @return Currency code represented in ISO 4217 three-letter code format
+     */
+
+    public String getDefaultCurrency() {
+        return mDefaultCurrencyCode;
+    }
+
     /**
      * @return set of {@code Currency} represented by this {@code Country} instance
      */

core/src/main/java/com/hyperwallet/android/model/graphql/query/TransferMethodConfigurationKeysQuery.java

@@ -35,6 +35,7 @@ public class TransferMethodConfigurationKeysQuery implements GqlQuery {
                     + "\t\tnodes {\n"
                     + "\t\t\tcode\n"
                     + "\t\t\tname\n"
+                    + "\t\t\tdefaultCurrencyCode\n"
                     + "\t\t\tcurrencies {\n"
                     + "\t\t\t\tnodes {\n"
                     + "\t\t\t\t\tcode\n"

core/src/test/java/com/hyperwallet/android/GqlTransactionBuilderTest.java

@@ -57,6 +57,7 @@ public void testBuild_withRequiredParametersOnly() {
                 + "\t\tnodes {\n"
                 + "\t\t\tcode\n"
                 + "\t\t\tname\n"
+                + "\t\t\tdefaultCurrencyCode\n"
                 + "\t\t\tcurrencies {\n"
                 + "\t\t\t\tnodes {\n"
                 + "\t\t\t\t\tcode\n"

core/src/test/java/com/hyperwallet/android/GqlTransactionTest.java

@@ -82,6 +82,7 @@ public void testPerformRequest_usingHttpPost() throws IOException {
                 + "\t\tnodes {\n"
                 + "\t\t\tcode\n"
                 + "\t\t\tname\n"
+                + "\t\t\tdefaultCurrencyCode\n"
                 + "\t\t\tcurrencies {\n"
                 + "\t\t\t\tnodes {\n"
                 + "\t\t\t\t\tcode\n"

core/src/test/java/com/hyperwallet/android/model/graphql/query/TransferMethodConfigurationKeysQueryTest.java

@@ -15,6 +15,7 @@ public void testToQuery_returnsQuery() {
                 + "\t\tnodes {\n"
                 + "\t\t\tcode\n"
                 + "\t\t\tname\n"
+                + "\t\t\tdefaultCurrencyCode\n"
                 + "\t\t\tcurrencies {\n"
                 + "\t\t\t\tnodes {\n"
                 + "\t\t\t\t\tcode\n"