currency symbol graphql coverage

design-documents/graph-ql/coverage/store-currency-symbol.md

@@ -0,0 +1,37 @@
+# Coverage for currency symbol
+
+Magento allows to use custom currency symbol.The current graphql implementation does not fully support custom currency symbol feature. The currency query only returns base currency symbol and current store default currency symbol.
+ `available_currency_codes` should be deprecated and instead `available_currency` field should be added, or both should be kept
+
+ ## Schema
+```graphql
+type CurrencyObject {
+    currency_code: String
+    currency_symbol: String
+}
+
+type CurrencySettings {
+    base_currency_code: String
+    base_currency_symbol: String
+    default_display_currency_code: String
+    default_display_currency_symbol: String
+    exchange_rates: [ExchangeRate]
+    available_currency: [CurrencyObject!]!
+}
+
+type Currency @deprecated {
+ available_currency_codes: [String]
+ base_currency_code: String
+ base_currency_symbol: String
+ default_display_currency_code: String
+ default_display_currency_symbol: String
+ exchange_rates: [ExchangeRate]
+}
+
+type Query {
+ currency: Currency @deprecated(description: "use `currency_settings` instead")
+ currency_settings: CurrencySettings
+}
+```
+
+All the currency symbol fields should be moved to CurrencySymbolGraphQl module and schema stitched to currency type.