add lovelace data type

Signed-off-by: Marko Kungla <marko.kungla@gmail.com>

README.md

@@ -40,6 +40,7 @@ go install github.com/howijd/koios-rest-go-client/cmd/koios-rest@latest
 - [Usage](#usage)
   - [Basic usage](#basic-usage)
   - [Concurrency using goroutines](#concurrency-using-goroutines)
+- [Lovelace and math on assets and tokens.](#lovelace-and-math-on-assets-and-tokens)
 - [Implemented Endpoints](#implemented-endpoints)
 
 
@@ -142,6 +143,22 @@ func main() {
 }
 ```
 
+## Lovelace and math on assets and tokens.
+
+Liprary uses for most cases to represent lovelace using [`Lovelace`](https://pkg.go.dev/github.com/howijd/koios-rest-go-client#Lovelace) data type.
+
+This library uses forked snapshot of [github.com/shopspring/decimal] package to provide  
+JSON and XML serialization/deserialization and make it ease to work with calculations  
+and deciimal precisions of ADA lovelace and native assets.
+
+
+**For decimal package API see**
+
+[![](https://pkg.go.dev/badge/github.com/shopspring/decimal)](https://pkg.go.dev/github.com/shopspring/decimal) 
+
+FORK: https://github.com/howijd/decimal  
+issues and bug reports are welcome to: https://github.com/howijd/decimal/issues.
+
 ## Implemented Endpoints
 
 > WORK IN PROGRESS
@@ -165,3 +182,4 @@ func main() {
 -->
 <!-- LINKS -->
 [Koios API]: https://koios.rest "Koios API"
+[github.com/shopspring/decimal]: https://github.com/shopspring/decimal

network.go

@@ -21,8 +21,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/url"
-
-	"github.com/shopspring/decimal"
 )
 
 type (
@@ -112,23 +110,23 @@ type (
 	Totals []struct {
 
 		// Circulating UTxOs for given epoch (in lovelaces).
-		Circulation decimal.Decimal `json:"circulation"`
+		Circulation Lovelace `json:"circulation"`
 
 		// Epoch number.
 		EpochNo EpochNo `json:"epoch_no"`
 
 		// Total Reserves yet to be unlocked on chain.
-		Reserves decimal.Decimal `json:"reserves"`
+		Reserves Lovelace `json:"reserves"`
 
 		// Rewards accumulated as of given epoch (in lovelaces).
-		Reward decimal.Decimal `json:"reward"`
+		Reward Lovelace `json:"reward"`
 
 		// Total Active Supply (sum of treasury funds, rewards,
 		// UTxOs, deposits and fees) for given epoch (in lovelaces).
-		Supply decimal.Decimal `json:"supply"`
+		Supply Lovelace `json:"supply"`
 
 		// Funds in treasury for given epoch (in lovelaces).
-		Treasury decimal.Decimal `json:"treasury"`
+		Treasury Lovelace `json:"treasury"`
 	}
 
 	// TotalsResponse represents response from `/totals` enpoint.

types.go

@@ -56,8 +56,14 @@ type (
 	// of github.com/shopspring/decimal package to provide. JSON and XML
 	// serialization/deserialization and make it ease to work with calculations
 	// and deciimal precisions of ADA lovelace and native assets.
+	//
+	// For API of decimal package see
+	// https://pkg.go.dev/github.com/shopspring/decimal
+	//
 	// SEE: https://github.com/howijd/decimal
 	// issues and bug reports are welcome to:
 	// https://github.com/howijd/decimal/issues.
-	Lovelace decimal.Decimal
+	Lovelace struct {
+		decimal.Decimal
+	}
 )