Get transactions (#45)

* Make transactions requests in parallel

* Update transaction error handling

pkg/datastore/postgres/postgres_suite_test.go

@@ -3,10 +3,17 @@ package postgres_test
 import (
 	"testing"
 
+	"io/ioutil"
+	"log"
+
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 )
 
+func init() {
+	log.SetOutput(ioutil.Discard)
+}
+
 func TestPostgres(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "Postgres Suite")

pkg/datastore/postgres/postgres_test.go

@@ -4,9 +4,6 @@ import (
 	"fmt"
 	"strings"
 
-	"io/ioutil"
-	"log"
-
 	"math/big"
 
 	"github.com/jmoiron/sqlx"
@@ -20,10 +17,6 @@ import (
 	"github.com/vulcanize/vulcanizedb/test_config"
 )
 
-func init() {
-	log.SetOutput(ioutil.Discard)
-}
-
 var _ = Describe("Postgres DB", func() {
 	var sqlxdb *sqlx.DB