diff --git a/config/config.go b/config/config.go
index 56375f1..b7450c2 100644
--- a/config/config.go
+++ b/config/config.go
@@ -36,7 +36,7 @@ func New() Config {
 	as.Append(args.STRING, "fileprefix", "path prefix for file service", "/__files__")
 	as.Append(args.STRING, "fileroot", "path to file hosting root", "/tmp/")
 	as.Append(args.STRING, "database", "database name to use", "db")
-	as.Append(args.STRING, "drivertype", "database driver to use", "boltdb")
+	as.Append(args.STRING, "driver-type", "database driver to use, [boltdb mongo map]", "map")
 	as.Append(args.BOOL, "auth", "check for authorized access", false)
 	as.Append(args.DURATION, "authlifetime", "duration auth is valid for", time.Hour)
 	as.Append(args.DURATION, "delay", "time to delay requests", time.Duration(0))
@@ -55,7 +55,7 @@ func New() Config {
 		FilePrefix:   as.GetString("fileprefix"),
 		FileRoot:     as.GetString("fileroot"),
 		Database:     as.GetString("database"),
-		DriverType:   as.GetString("drivertype"),
+		DriverType:   as.GetString("driver-type"),
 		Auth:         as.GetBool("auth"),
 		AuthLifetime: as.GetDuration("authlifetime"),
 		Delay:        as.GetDuration("delay"),
diff --git a/storage/driver/boltdb.go b/storage/driver/boltdb.go
index c27e538..ff6331e 100644
--- a/storage/driver/boltdb.go
+++ b/storage/driver/boltdb.go
@@ -31,7 +31,7 @@ func NewBoltDB(path string) *BoltDB {
 	}
 }
 
-func (bdb *BoltDB) count(ctx context.Context, namespace string, filter interface{}) (int, error) {
+func (bdb *BoltDB) Count(ctx context.Context, namespace string, filter interface{}) (int, error) {
 	ch, err := bdb.Find(ctx, namespace, filter)
 	n := 0
 	for _ = range ch {
diff --git a/storage/driver/boltdb_test.go b/storage/driver/boltdb_test.go
index afc99ef..0b7eb9d 100644
--- a/storage/driver/boltdb_test.go
+++ b/storage/driver/boltdb_test.go
@@ -30,84 +30,88 @@ func TestBoltDBCount(t *testing.T) {
 	bdb, can := tempBoltDB(t)
 	defer can()
 
-	ch, err := bdb.Find(context.TODO(), testNS, map[string]string{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	ones := make([]entity.One, testN)
-	i := 0
-	for j := range ch {
-		var o entity.One
-		if err := bson.Unmarshal(j, &o); err != nil {
-			t.Fatal(err)
-		}
-		ones[i] = o
-		i++
-	}
-
-	for name, filter := range map[string]struct {
-		filter    interface{}
-		matchOne  bool
-		matchMany bool
-	}{
-		"one.Query": {
-			filter:   ones[0].Query(),
-			matchOne: true,
-		},
-		"title:title": {
-			filter:   map[string]interface{}{entity.Title: ones[1].Title},
-			matchOne: true,
-		},
-		"title:title, text:text": {
-			filter:   map[string]interface{}{entity.Title: ones[2].Title, entity.Text: ones[2].Text},
-			matchOne: true,
-		},
-		"title:title, text:gibberish": {
-			filter: map[string]interface{}{entity.Title: ones[3].Title, entity.Text: ones[2].Text},
-		},
-		"name:$in[gibberish]": {
-			filter: operator.NewFilterIn(entity.Name, []string{ones[0].Name + ones[1].Name}),
-		},
-		"name:$in[name]": {
-			filter:   operator.NewFilterIn(entity.Name, []string{ones[0].Name}),
-			matchOne: true,
-		},
-		"name:$regex[gibberish]": {
-			filter: operator.Regex{Key: entity.Name, Value: ones[3].Name + ones[4].Name},
-		},
-		"name:$regex[name]": {
-			filter:   operator.Regex{Key: entity.Name, Value: ones[3].Name},
-			matchOne: true,
-		},
-		"name:caseInsensitive[]": {
-			filter:    operator.CaseInsensitive{Key: entity.Name, Value: ""},
-			matchMany: true,
-		},
-		"name:caseInsensitive[NAME]": {
-			filter:   operator.CaseInsensitive{Key: entity.Name, Value: strings.ToUpper(ones[3].Name)},
-			matchOne: true,
-		},
-		"name:caseInsensitives[[]{}]": {
-			filter:    operator.CaseInsensitives{Key: entity.Name, Values: []string{}},
-			matchMany: true,
-		},
-		"name:caseInsensitives[[]{NAME}]": {
-			filter:   operator.CaseInsensitives{Key: entity.Name, Values: []string{strings.ToUpper(ones[3].Name)}},
-			matchOne: true,
-		},
-	} {
-		f := filter
-		t.Run(name, func(t *testing.T) {
-			n, err := bdb.count(context.TODO(), testNS, f.filter)
+	for _, driver := range []Driver{bdb, tempMap(t)} {
+		t.Run(fmt.Sprintf("%T", driver), func(t *testing.T) {
+			ch, err := driver.Find(context.TODO(), testNS, map[string]string{})
 			if err != nil {
 				t.Fatal(err)
 			}
-			if f.matchOne && n != 1 {
-				t.Fatalf("%v results for %+v, want matchOne=%v", n, f, f.matchOne)
-			} else if f.matchMany && n < 2 {
-				t.Fatalf("%v results for %+v, want matchMany=%v", n, f, f.matchMany)
-			} else if !f.matchOne && !f.matchMany && n != 0 {
-				t.Fatalf("%v results for %+v, want match=%v", n, f, f.matchOne || f.matchMany)
+			ones := make([]entity.One, testN)
+			i := 0
+			for j := range ch {
+				var o entity.One
+				if err := bson.Unmarshal(j, &o); err != nil {
+					t.Fatal(err)
+				}
+				ones[i] = o
+				i++
+			}
+
+			for name, filter := range map[string]struct {
+				filter    interface{}
+				matchOne  bool
+				matchMany bool
+			}{
+				"one.Query": {
+					filter:   ones[0].Query(),
+					matchOne: true,
+				},
+				"title:title": {
+					filter:   map[string]interface{}{entity.Title: ones[1].Title},
+					matchOne: true,
+				},
+				"title:title, text:text": {
+					filter:   map[string]interface{}{entity.Title: ones[2].Title, entity.Text: ones[2].Text},
+					matchOne: true,
+				},
+				"title:title, text:gibberish": {
+					filter: map[string]interface{}{entity.Title: ones[3].Title, entity.Text: ones[2].Text},
+				},
+				"name:$in[gibberish]": {
+					filter: operator.NewFilterIn(entity.Name, []string{ones[0].Name + ones[1].Name}),
+				},
+				"name:$in[name]": {
+					filter:   operator.NewFilterIn(entity.Name, []string{ones[0].Name}),
+					matchOne: true,
+				},
+				"name:$regex[gibberish]": {
+					filter: operator.Regex{Key: entity.Name, Value: ones[3].Name + ones[4].Name},
+				},
+				"name:$regex[name]": {
+					filter:   operator.Regex{Key: entity.Name, Value: ones[3].Name},
+					matchOne: true,
+				},
+				"name:caseInsensitive[]": {
+					filter:    operator.CaseInsensitive{Key: entity.Name, Value: ""},
+					matchMany: true,
+				},
+				"name:caseInsensitive[NAME]": {
+					filter:   operator.CaseInsensitive{Key: entity.Name, Value: strings.ToUpper(ones[3].Name)},
+					matchOne: true,
+				},
+				"name:caseInsensitives[[]{}]": {
+					filter:    operator.CaseInsensitives{Key: entity.Name, Values: []string{}},
+					matchMany: true,
+				},
+				"name:caseInsensitives[[]{NAME}]": {
+					filter:   operator.CaseInsensitives{Key: entity.Name, Values: []string{strings.ToUpper(ones[3].Name)}},
+					matchOne: true,
+				},
+			} {
+				f := filter
+				t.Run(name, func(t *testing.T) {
+					n, err := driver.Count(context.TODO(), testNS, f.filter)
+					if err != nil {
+						t.Fatal(err)
+					}
+					if f.matchOne && n != 1 {
+						t.Fatalf("%v results for %+v, want matchOne=%v", n, f, f.matchOne)
+					} else if f.matchMany && n < 2 {
+						t.Fatalf("%v results for %+v, want matchMany=%v", n, f, f.matchMany)
+					} else if !f.matchOne && !f.matchMany && n != 0 {
+						t.Fatalf("%v results for %+v, want match=%v", n, f, f.matchOne || f.matchMany)
+					}
+				})
 			}
 		})
 	}
@@ -117,55 +121,59 @@ func TestBoltDBFind(t *testing.T) {
 	bdb, can := tempBoltDB(t)
 	defer can()
 
-	ch, err := bdb.Find(context.TODO(), testNS, map[string]string{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	n := 0
-	for b := range ch {
-		n++
-		o := entity.One{}
-		if err := bson.Unmarshal(b, &o); err != nil {
-			t.Fatal(err)
-		}
-		if o.Type == "" {
-			t.Error(o.Type)
-		}
-		if o.Title == "" {
-			t.Error(o.Title)
-		}
-		if o.Text == "" {
-			t.Error(o.Text)
-		}
-		if o.Relationship != "" {
-			t.Error(o.Relationship)
-		}
-		if o.Modified == 0 {
-			t.Error(o.Modified)
-		}
-		if len(o.Attachments) == 0 {
-			t.Error(o.Attachments)
-		}
-		if len(o.Connections) == 0 {
-			t.Error(o.Connections)
-		}
-		for k := range o.Connections {
-			if o.Connections[k].Name == "" {
-				t.Error(o.Connections[k])
+	for _, driver := range []Driver{bdb, tempMap(t)} {
+		t.Run(fmt.Sprintf("%T", driver), func(t *testing.T) {
+			ch, err := driver.Find(context.TODO(), testNS, map[string]string{})
+			if err != nil {
+				t.Fatal(err)
 			}
-			if o.Connections[k].Title == "" {
-				t.Error(o.Connections[k])
+			n := 0
+			for b := range ch {
+				n++
+				o := entity.One{}
+				if err := bson.Unmarshal(b, &o); err != nil {
+					t.Fatal(err)
+				}
+				if o.Type == "" {
+					t.Error(o.Type)
+				}
+				if o.Title == "" {
+					t.Error(o.Title)
+				}
+				if o.Text == "" {
+					t.Error(o.Text)
+				}
+				if o.Relationship != "" {
+					t.Error(o.Relationship)
+				}
+				if o.Modified == 0 {
+					t.Error(o.Modified)
+				}
+				if len(o.Attachments) == 0 {
+					t.Error(o.Attachments)
+				}
+				if len(o.Connections) == 0 {
+					t.Error(o.Connections)
+				}
+				for k := range o.Connections {
+					if o.Connections[k].Name == "" {
+						t.Error(o.Connections[k])
+					}
+					if o.Connections[k].Title == "" {
+						t.Error(o.Connections[k])
+					}
+					if o.Connections[k].Relationship == "" {
+						t.Error(o.Connections[k])
+					}
+					if o.Connections[k].Type == "" {
+						t.Error(o.Connections[k])
+					}
+				}
 			}
-			if o.Connections[k].Relationship == "" {
-				t.Error(o.Connections[k])
+			if n != testN {
+				t.Fatal(n)
 			}
-			if o.Connections[k].Type == "" {
-				t.Error(o.Connections[k])
-			}
-		}
-	}
-	if n != testN {
-		t.Fatal(n)
+		})
 	}
 }
 
@@ -173,76 +181,80 @@ func TestBoltDBUpdate(t *testing.T) {
 	bdb, can := tempBoltDB(t)
 	defer can()
 
-	ch, err := bdb.Find(context.TODO(), testNS, map[string]string{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	ones := make([]entity.One, testN)
-	i := 0
-	for j := range ch {
-		var o entity.One
-		if err := bson.Unmarshal(j, &o); err != nil {
-			t.Fatal(err)
-		}
-		ones[i] = o
-		i++
-	}
+	for _, driver := range []Driver{bdb, tempMap(t)} {
+		t.Run(fmt.Sprintf("%T", driver), func(t *testing.T) {
+			ch, err := driver.Find(context.TODO(), testNS, map[string]string{})
+			if err != nil {
+				t.Fatal(err)
+			}
+			ones := make([]entity.One, testN)
+			i := 0
+			for j := range ch {
+				var o entity.One
+				if err := bson.Unmarshal(j, &o); err != nil {
+					t.Fatal(err)
+				}
+				ones[i] = o
+				i++
+			}
 
-	if err := bdb.Update(context.TODO(), testNS, ones[0].Query(), operator.Set{Key: entity.Title, Value: "NEWTITLE"}); err != nil {
-		t.Fatal(err)
-	}
+			if err := driver.Update(context.TODO(), testNS, ones[0].Query(), operator.Set{Key: entity.Title, Value: "NEWTITLE"}); err != nil {
+				t.Fatal(err)
+			}
 
-	if err := bdb.Update(context.TODO(), testNS, ones[0].Query(), operator.Unset(entity.Type)); err != nil {
-		t.Fatal(err)
-	}
+			if err := driver.Update(context.TODO(), testNS, ones[0].Query(), operator.Unset(entity.Type)); err != nil {
+				t.Fatal(err)
+			}
 
-	if n, err := bdb.count(context.TODO(), testNS, map[string]string{}); err != nil {
-		t.Fatal(err)
-	} else if n != testN {
-		t.Fatal(n)
-	}
+			if n, err := driver.Count(context.TODO(), testNS, map[string]string{}); err != nil {
+				t.Fatal(err)
+			} else if n != testN {
+				t.Fatal(n)
+			}
 
-	if n, err := bdb.count(context.TODO(), testNS, map[string]string{entity.Title: "NEWTITLE"}); err != nil {
-		t.Fatal(err)
-	} else if n != 1 {
-		t.Fatal(n)
-	}
+			if n, err := driver.Count(context.TODO(), testNS, map[string]string{entity.Title: "NEWTITLE"}); err != nil {
+				t.Fatal(err)
+			} else if n != 1 {
+				t.Fatal(n)
+			}
 
-	ch, err = bdb.Find(context.TODO(), testNS, ones[0].Query())
-	if err != nil {
-		t.Fatal(err)
-	}
-	i = 0
-	for j := range ch {
-		i++
-		o := entity.One{}
-		if err := bson.Unmarshal(j, &o); err != nil {
-			t.Fatal(err)
-		}
-		if o.Type != "" {
-			t.Fatalf("doc still has Type even though $unset called: %+v", o)
-		}
-		if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
-			t.Fatal(ones[0], o)
-		}
-		ones[0].Title = ""
-		o.Title = ""
-		if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
-			t.Fatal(ones[0], o)
-		}
-		ones[0].Type = ""
-		o.Type = ""
-		if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
-			t.Fatal(ones[0], o)
-		}
-		ones[0].Modified = 0
-		o.Modified = 0
-		if fmt.Sprint(ones[0]) != fmt.Sprint(o) {
-			t.Fatalf("after removing fields that should differ, still not the same:\n%+v\n%+v", ones[0], o)
-		}
-	}
-	if i != 1 {
-		t.Fatal(i)
+			ch, err = driver.Find(context.TODO(), testNS, ones[0].Query())
+			if err != nil {
+				t.Fatal(err)
+			}
+			i = 0
+			for j := range ch {
+				i++
+				o := entity.One{}
+				if err := bson.Unmarshal(j, &o); err != nil {
+					t.Fatal(err)
+				}
+				if o.Type != "" {
+					t.Fatalf("doc still has Type even though $unset called: %+v", o)
+				}
+				if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
+					t.Fatal(ones[0], o)
+				}
+				ones[0].Title = ""
+				o.Title = ""
+				if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
+					t.Fatal(ones[0], o)
+				}
+				ones[0].Type = ""
+				o.Type = ""
+				if fmt.Sprint(ones[0]) == fmt.Sprint(o) {
+					t.Fatal(ones[0], o)
+				}
+				ones[0].Modified = 0
+				o.Modified = 0
+				if fmt.Sprint(ones[0]) != fmt.Sprint(o) {
+					t.Fatalf("after removing fields that should differ, still not the same:\n%+v\n%+v", ones[0], o)
+				}
+			}
+			if i != 1 {
+				t.Fatal(i)
+			}
+		})
 	}
 }
 
@@ -250,71 +262,75 @@ func TestBoltDBInsert(t *testing.T) {
 	bdb, can := tempBoltDB(t)
 	defer can()
 
-	ch, err := bdb.Find(context.TODO(), testNS, map[string]string{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	ones := make([]entity.One, testN)
-	i := 0
-	for j := range ch {
-		var o entity.One
-		if err := bson.Unmarshal(j, &o); err != nil {
-			t.Fatal(err)
-		}
-		ones[i] = o
-		i++
-	}
-
-	if err := bdb.Insert(context.TODO(), testNS, ones[0]); err == nil {
-		t.Fatal("could insert colliding object:", err)
-	}
-
-	ones[0].Name = "NEWNAME"
-	if err := bdb.Insert(context.TODO(), testNS, ones[0]); err != nil {
-		t.Fatal("could not insert object with new Name:", err)
-	}
-
-	if n, err := bdb.count(context.TODO(), testNS, ones[0].Query()); err != nil {
-		t.Fatal(err)
-	} else if n != 1 {
-		t.Fatal(err)
-	}
-
-	ch, err = bdb.Find(context.TODO(), testNS, ones[0].Query())
-	if err != nil {
-		t.Fatal(err)
-	}
-	for i := range ch {
-		o := entity.One{}
-		if err := bson.Unmarshal(i, &o); err != nil {
-			t.Fatal(err)
-		}
-		if fmt.Sprint(o) == fmt.Sprint(ones[0]) {
-			t.Fatal(o, ones[0])
-		}
-		o.Modified = 0
-		for k := range ones[0].Connections {
-			if _, ok := o.Connections[k]; !ok {
-				t.Fatalf("db had fewer connections than real: %s", k)
+	for _, driver := range []Driver{bdb, tempMap(t)} {
+		t.Run(fmt.Sprintf("%T", driver), func(t *testing.T) {
+			ch, err := driver.Find(context.TODO(), testNS, map[string]string{})
+			if err != nil {
+				t.Fatal(err)
 			}
-		}
-		for k := range o.Connections {
-			if _, ok := ones[0].Connections[k]; !ok {
-				t.Fatalf("db had more connections than real: %s", k)
+			ones := make([]entity.One, testN)
+			i := 0
+			for j := range ch {
+				var o entity.One
+				if err := bson.Unmarshal(j, &o); err != nil {
+					t.Fatal(err)
+				}
+				ones[i] = o
+				i++
 			}
-			c := o.Connections[k]
-			c.Modified = 0
-			o.Connections[k] = c
 
-			c = ones[0].Connections[k]
-			c.Modified = 0
-			ones[0].Connections[k] = c
-		}
-		o.Modified = 0
-		ones[0].Modified = 0
-		if fmt.Sprint(o) != fmt.Sprint(ones[0]) {
-			t.Fatalf("objects should match after removing modify:\n%+v\n%+v", o, ones[0])
-		}
+			if err := driver.Insert(context.TODO(), testNS, ones[0]); err == nil {
+				t.Fatal("could insert colliding object:", err)
+			}
+
+			ones[0].Name = "NEWNAME"
+			if err := driver.Insert(context.TODO(), testNS, ones[0]); err != nil {
+				t.Fatal("could not insert object with new Name:", err)
+			}
+
+			if n, err := driver.Count(context.TODO(), testNS, ones[0].Query()); err != nil {
+				t.Fatal(err)
+			} else if n != 1 {
+				t.Fatal(err)
+			}
+
+			ch, err = driver.Find(context.TODO(), testNS, ones[0].Query())
+			if err != nil {
+				t.Fatal(err)
+			}
+			for i := range ch {
+				o := entity.One{}
+				if err := bson.Unmarshal(i, &o); err != nil {
+					t.Fatal(err)
+				}
+				if fmt.Sprint(o) == fmt.Sprint(ones[0]) {
+					t.Fatal(o, ones[0])
+				}
+				o.Modified = 0
+				for k := range ones[0].Connections {
+					if _, ok := o.Connections[k]; !ok {
+						t.Fatalf("db had fewer connections than real: %s", k)
+					}
+				}
+				for k := range o.Connections {
+					if _, ok := ones[0].Connections[k]; !ok {
+						t.Fatalf("db had more connections than real: %s", k)
+					}
+					c := o.Connections[k]
+					c.Modified = 0
+					o.Connections[k] = c
+
+					c = ones[0].Connections[k]
+					c.Modified = 0
+					ones[0].Connections[k] = c
+				}
+				o.Modified = 0
+				ones[0].Modified = 0
+				if fmt.Sprint(o) != fmt.Sprint(ones[0]) {
+					t.Fatalf("objects should match after removing modify:\n%+v\n%+v", o, ones[0])
+				}
+			}
+		})
 	}
 }
 
@@ -322,39 +338,43 @@ func TestBoltDBDelete(t *testing.T) {
 	bdb, can := tempBoltDB(t)
 	defer can()
 
-	ch, err := bdb.Find(context.TODO(), testNS, map[string]string{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	ones := make([]entity.One, testN)
-	i := 0
-	for j := range ch {
-		var o entity.One
-		if err := bson.Unmarshal(j, &o); err != nil {
-			t.Fatal(err)
-		}
-		ones[i] = o
-		i++
-	}
+	for _, driver := range []Driver{bdb, tempMap(t)} {
+		t.Run(fmt.Sprintf("%T", driver), func(t *testing.T) {
+			ch, err := driver.Find(context.TODO(), testNS, map[string]string{})
+			if err != nil {
+				t.Fatal(err)
+			}
+			ones := make([]entity.One, testN)
+			i := 0
+			for j := range ch {
+				var o entity.One
+				if err := bson.Unmarshal(j, &o); err != nil {
+					t.Fatal(err)
+				}
+				ones[i] = o
+				i++
+			}
 
-	wantN := testN
-	for _, filter := range []interface{}{
-		ones[0].Query(),
-		operator.NewFilterIn(entity.Title, []string{ones[1].Title}),
-		operator.Regex{Key: entity.Text, Value: ones[2].Text},
-	} {
-		err = bdb.Delete(context.TODO(), testNS, filter)
-		if err != nil {
-			t.Fatal(err)
-		}
-		wantN--
-		n, err := bdb.count(context.TODO(), testNS, map[string]string{})
-		if err != nil {
-			t.Fatal(err)
-		}
-		if n != wantN {
-			t.Error(n, filter)
-		}
+			wantN := testN
+			for _, filter := range []interface{}{
+				ones[0].Query(),
+				operator.NewFilterIn(entity.Title, []string{ones[1].Title}),
+				operator.Regex{Key: entity.Text, Value: ones[2].Text},
+			} {
+				err = driver.Delete(context.TODO(), testNS, filter)
+				if err != nil {
+					t.Fatal(err)
+				}
+				wantN--
+				n, err := driver.Count(context.TODO(), testNS, map[string]string{})
+				if err != nil {
+					t.Fatal(err)
+				}
+				if n != wantN {
+					t.Error(n, filter)
+				}
+			}
+		})
 	}
 }
 
diff --git a/storage/driver/driver.go b/storage/driver/driver.go
index 5ef12bf..71e0527 100644
--- a/storage/driver/driver.go
+++ b/storage/driver/driver.go
@@ -9,6 +9,7 @@ import (
 )
 
 type Driver interface {
+	Count(context.Context, string, interface{}) (int, error)
 	Find(context.Context, string, interface{}) (chan bson.Raw, error)
 	Update(context.Context, string, interface{}, interface{}) error
 	Insert(context.Context, string, interface{}) error
@@ -20,6 +21,8 @@ func New(path ...string) Driver {
 		path = []string{config.New().DBURI}
 	}
 	switch strings.ToLower(config.New().DriverType) {
+	case "map":
+		return NewMap()
 	case "mongo":
 		return NewMongo(path[0])
 	case "boltdb":
diff --git a/storage/driver/map.go b/storage/driver/map.go
new file mode 100644
index 0000000..b2d545a
--- /dev/null
+++ b/storage/driver/map.go
@@ -0,0 +1,145 @@
+package driver
+
+import (
+	"context"
+	"errors"
+	"local/dndex/storage/entity"
+	"sync"
+
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+type Map struct {
+	db   map[string]map[string][]byte
+	lock sync.RWMutex
+}
+
+func NewMap() *Map {
+	return &Map{
+		db:   make(map[string]map[string][]byte),
+		lock: sync.RWMutex{},
+	}
+}
+
+func (mp *Map) Count(ctx context.Context, namespace string, filter interface{}) (int, error) {
+	ch, err := mp.Find(ctx, namespace, filter)
+	if err != nil {
+		return 0, err
+	}
+	n := 0
+	for _ = range ch {
+		n++
+	}
+	return n, nil
+}
+
+func (mp *Map) Find(_ context.Context, namespace string, filter interface{}) (chan bson.Raw, error) {
+	mp.lock.RLock()
+	defer mp.lock.RUnlock()
+	b, err := bson.Marshal(filter)
+	if err != nil {
+		return nil, err
+	}
+	m := bson.M{}
+	if err := bson.Unmarshal(b, &m); err != nil {
+		return nil, err
+	}
+	results := make([]bson.Raw, 0)
+	for _, v := range mp.db[namespace] {
+		n := bson.M{}
+		if err := bson.Unmarshal(v, &n); err != nil {
+			return nil, err
+		}
+		if matches(n, m) {
+			results = append(results, bson.Raw(v))
+		}
+	}
+	ch := make(chan bson.Raw)
+	go func() {
+		defer close(ch)
+		for i := range results {
+			ch <- results[i]
+		}
+	}()
+	return ch, err
+}
+
+func (mp *Map) Update(_ context.Context, namespace string, filter, operator interface{}) error {
+	mp.lock.Lock()
+	defer mp.lock.Unlock()
+	b, err := bson.Marshal(filter)
+	if err != nil {
+		return err
+	}
+	m := bson.M{}
+	if err := bson.Unmarshal(b, &m); err != nil {
+		return err
+	}
+	for k, v := range mp.db[namespace] {
+		n := bson.M{}
+		if err := bson.Unmarshal(v, &n); err != nil {
+			return err
+		}
+		if matches(n, m) {
+			n, err := apply(n, operator)
+			if err != nil {
+				return err
+			}
+			v, err := bson.Marshal(n)
+			if err != nil {
+				return err
+			}
+			mp.db[namespace][k] = v
+		}
+	}
+	return nil
+}
+
+func (mp *Map) Insert(_ context.Context, namespace string, doc interface{}) error {
+	mp.lock.Lock()
+	defer mp.lock.Unlock()
+	b, err := bson.Marshal(doc)
+	if err != nil {
+		return err
+	}
+	m := bson.M{}
+	if err := bson.Unmarshal(b, &m); err != nil {
+		return err
+	}
+	if _, ok := m[entity.Name]; !ok {
+		return errors.New("primary key required to insert: did not find " + entity.Name)
+	} else if _, ok := m[entity.Name].(string); !ok {
+		return errors.New("primary key must be a string")
+	}
+	if _, ok := mp.db[namespace][m[entity.Name].(string)]; ok {
+		return errors.New("cannot insert: collision on primary key")
+	}
+	if _, ok := mp.db[namespace]; !ok {
+		mp.db[namespace] = make(map[string][]byte)
+	}
+	mp.db[namespace][m[entity.Name].(string)] = b
+	return nil
+}
+
+func (mp *Map) Delete(_ context.Context, namespace string, filter interface{}) error {
+	mp.lock.Lock()
+	defer mp.lock.Unlock()
+	b, err := bson.Marshal(filter)
+	if err != nil {
+		return err
+	}
+	m := bson.M{}
+	if err := bson.Unmarshal(b, &m); err != nil {
+		return err
+	}
+	for k, v := range mp.db[namespace] {
+		n := bson.M{}
+		if err := bson.Unmarshal(v, &n); err != nil {
+			return err
+		}
+		if matches(n, m) {
+			delete(mp.db[namespace], k)
+		}
+	}
+	return nil
+}
diff --git a/storage/driver/map_test.go b/storage/driver/map_test.go
new file mode 100644
index 0000000..94c5a1c
--- /dev/null
+++ b/storage/driver/map_test.go
@@ -0,0 +1,38 @@
+package driver
+
+import (
+	"local/dndex/storage/entity"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+func tempMap(t *testing.T) *Map {
+	mp := NewMap()
+	mp.db[testNS] = map[string][]byte{}
+	for i := 0; i < testN; i++ {
+		p := entity.One{
+			Name:         "name-" + uuid.New().String()[:5],
+			Type:         "type-" + uuid.New().String()[:5],
+			Relationship: "rshp-" + uuid.New().String()[:5],
+			Title:        "titl-" + uuid.New().String()[:5],
+		}
+		o := entity.One{
+			Name:        "name-" + uuid.New().String()[:5],
+			Type:        "type-" + uuid.New().String()[:5],
+			Title:       "titl-" + uuid.New().String()[:5],
+			Text:        "text-" + uuid.New().String()[:5],
+			Modified:    time.Now().UnixNano(),
+			Connections: map[string]entity.One{p.Name: p},
+			Attachments: map[string]string{"filename": "/path/to/file"},
+		}
+		b, err := bson.Marshal(o)
+		if err != nil {
+			t.Fatal(err)
+		}
+		mp.db[testNS][o.Name] = b
+	}
+	return mp
+}
diff --git a/storage/driver/mon.go b/storage/driver/mon.go
index 95c4b81..4559494 100644
--- a/storage/driver/mon.go
+++ b/storage/driver/mon.go
@@ -37,6 +37,10 @@ func NewMongo(path string) Mongo {
 	}
 }
 
+func (m Mongo) Count(_ context.Context, _ string, _ interface{}) (int, error) {
+	return 0, errors.New("not impl")
+}
+
 func (m Mongo) Find(ctx context.Context, namespace string, filter interface{}) (chan bson.Raw, error) {
 	c := m.client.Database(m.db).Collection(namespace)
 	cursor, err := c.Find(ctx, filter)
diff --git a/storage/graph_test.go b/storage/graph_test.go
index 12840fc..b469d44 100644
--- a/storage/graph_test.go
+++ b/storage/graph_test.go
@@ -3,7 +3,6 @@ package storage
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"local/dndex/storage/entity"
 	"local/dndex/storage/operator"
 	"os"
@@ -16,13 +15,6 @@ import (
 
 func TestIntegration(t *testing.T) {
 	os.Args = os.Args[:1]
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	defer os.Remove(f.Name())
-	os.Setenv("DBURI", f.Name())
 	graph := NewRateLimitedGraph()
 	ctx, can := context.WithCancel(context.TODO())
 	defer can()
diff --git a/view/auth_test.go b/view/auth_test.go
index 6443dd1..86bead7 100644
--- a/view/auth_test.go
+++ b/view/auth_test.go
@@ -3,7 +3,6 @@ package view
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"local/dndex/storage"
 	"local/dndex/storage/entity"
 	"net/http"
@@ -17,14 +16,6 @@ import (
 
 func TestAuth(t *testing.T) {
 	os.Args = os.Args[:1]
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	defer os.Remove(f.Name())
-	os.Setenv("DBURI", f.Name())
-
 	os.Setenv("AUTH", "true")
 	defer os.Setenv("AUTH", "false")
 
diff --git a/view/files_test.go b/view/files_test.go
index ef353b9..fd75dd4 100644
--- a/view/files_test.go
+++ b/view/files_test.go
@@ -17,13 +17,6 @@ import (
 
 func TestFiles(t *testing.T) {
 	os.Args = os.Args[:1]
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	defer os.Remove(f.Name())
-	os.Setenv("DBURI", f.Name())
 
 	d, err := ioutil.TempDir(os.TempDir(), "pattern*")
 	if err != nil {
diff --git a/view/port_test.go b/view/port_test.go
index 7fa8980..b11978c 100644
--- a/view/port_test.go
+++ b/view/port_test.go
@@ -16,13 +16,6 @@ import (
 
 func TestPort(t *testing.T) {
 	os.Args = os.Args[:1]
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	defer os.Remove(f.Name())
-	os.Setenv("DBURI", f.Name())
 	os.Setenv("AUTH", "false")
 
 	g := storage.NewRateLimitedGraph()
diff --git a/view/register_test.go b/view/register_test.go
index e64db0c..7800afa 100644
--- a/view/register_test.go
+++ b/view/register_test.go
@@ -2,7 +2,6 @@ package view
 
 import (
 	"fmt"
-	"io/ioutil"
 	"local/dndex/storage"
 	"net/http"
 	"net/http/httptest"
@@ -15,14 +14,6 @@ import (
 
 func TestRegister(t *testing.T) {
 	os.Args = os.Args[:1]
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	defer os.Remove(f.Name())
-	os.Setenv("DBURI", f.Name())
-
 	os.Setenv("AUTH", "true")
 	defer os.Setenv("AUTH", "false")
 
diff --git a/view/who_test.go b/view/who_test.go
index 0907acd..4c03d92 100644
--- a/view/who_test.go
+++ b/view/who_test.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"local/dndex/config"
 	"local/dndex/storage"
 	"local/dndex/storage/entity"
@@ -896,13 +895,7 @@ func TestSortOnes(t *testing.T) {
 }
 
 func fresh(t *testing.T) (http.Handler, []entity.One, entity.One, storage.RateLimitedGraph, func()) {
-	f, err := ioutil.TempFile(os.TempDir(), "pattern*")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-
-	g := storage.NewRateLimitedGraph(f.Name())
+	g := storage.NewRateLimitedGraph("")
 
 	if err := g.Delete(context.TODO(), "col", map[string]string{}); err != nil {
 		t.Fatal(err)
@@ -912,7 +905,6 @@ func fresh(t *testing.T) (http.Handler, []entity.One, entity.One, storage.RateLi
 	handler := jsonHandler(g)
 
 	return handler, ones, ones[0], g, func() {
-		os.Remove(f.Name())
 	}
 }