add cron job to sync currencies once in 24 hours

pkg/migrate/12_create_table_currencies.go

@@ -0,0 +1,40 @@
+package migrate
+
+import (
+	"fmt"
+	"log"
+	"wallet-api/pkg/model"
+
+	"github.com/go-pg/pg/v10"
+	"github.com/go-pg/pg/v10/orm"
+)
+
+/*
+CreateTableCurrencies
+
+Creates Currencies table if it does not exist.
+
+	   	Args:
+	   		*pg.DB: Postgres database client
+		Returns:
+			error: Returns if there is an error with table creation
+*/
+func CreateTableCurrencies(db *pg.Tx) error {
+	models := []interface{}{
+		(*model.Currency)(nil),
+	}
+
+	for _, model := range models {
+		err := db.Model(model).CreateTable(&orm.CreateTableOptions{
+			IfNotExists:   true,
+			FKConstraints: true,
+		})
+		if err != nil {
+			log.Printf("Error creating table \"currencies\": %s", err)
+			return err
+		} else {
+			fmt.Println("Table \"currencies\" created successfully")
+		}
+	}
+	return nil
+}