Add graphql server (#27)

* Add graphql server

* Update Makefile

* Update log_filters constraint

* Add GetLogFilter to repo

* Update travis (use Makefile, go fmt, go vet)

* Add logFilter schema and resolvers

* Add GetWatchedEvent to watched_events_repo

* Add watchedEventLog schema and resolvers

pkg/filters/filter_query.go

@@ -5,17 +5,17 @@ import (
 
 	"errors"
 
-	"github.com/vulcanize/vulcanizedb/pkg/core"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/vulcanize/vulcanizedb/pkg/core"
 )
 
 type LogFilters []LogFilter
 
 type LogFilter struct {
 	Name        string `json:"name"`
-	FromBlock   int64  `json:"fromBlock"`
-	ToBlock     int64  `json:"toBlock"`
+	FromBlock   int64  `json:"fromBlock" db:"from_block"`
+	ToBlock     int64  `json:"toBlock" db:"to_block"`
 	Address     string `json:"address"`
 	core.Topics `json:"topics"`
 }

pkg/filters/filter_test.go

@@ -3,10 +3,10 @@ package filters_test
 import (
 	"encoding/json"
 
-	"github.com/vulcanize/vulcanizedb/pkg/core"
-	"github.com/vulcanize/vulcanizedb/pkg/filters"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
+	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/filters"
 )
 
 var _ = Describe("Log filters", func() {