diff --git a/main.go b/cmd/reed/main.go
similarity index 100%
rename from main.go
rename to cmd/reed/main.go
diff --git a/driver.go b/driver.go
new file mode 100644
index 0000000..1ca0cca
--- /dev/null
+++ b/driver.go
@@ -0,0 +1,322 @@
+package reed
+
+import (
+	"strings"
+	"time"
+
+	"context"
+	"fmt"
+	"reflect"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+// --------- Tool functions
+
+func MapMerge[T comparable, S any](ms ...map[T]S) map[T]S {
+	res := map[T]S{}
+	for _, m := range ms {
+		for k, v := range m {
+			_, exists := res[k]
+			if !exists {
+				res[k] = v
+			}
+		}
+	}
+	return res
+}
+
+func StructToMap(s any) map[string]any {
+	settings := map[string]any{}
+	t := reflect.TypeOf(s)
+	v := reflect.ValueOf(s)
+	for i := 0; i < t.NumField(); i++ {
+		field := strings.Split(t.Field(i).Tag.Get("json"), ",")[0]
+		value := v.Field(i).Interface()
+		if field == "" {
+			fieldType := reflect.TypeOf(value)
+			if fieldType.Kind() == reflect.Struct {
+				newMap := StructToMap(value)
+				for k, v := range newMap {
+					settings[k] = v
+				}
+			}
+		} else {
+			settings[field] = value
+		}
+	}
+	return settings
+}
+
+// --------- The MongoService Type
+
+type MongoClient struct {
+	Client    *mongo.Client
+	DefaultDB *MongoDatabase
+}
+
+func (m *MongoClient) Database(name string) *MongoDatabase {
+	return &MongoDatabase{
+		DB: m.Client.Database(name),
+	}
+}
+
+func (m *MongoClient) NewQueryOptions() *QueryOptions {
+	return &QueryOptions{}
+}
+
+func (m *MongoClient) MergeQueryOptions(opts ...*QueryOptions) *QueryOptions {
+	qOpts := m.NewQueryOptions()
+	for _, co := range opts {
+		if co == nil {
+			continue
+		}
+		if co.Filters != nil {
+			qOpts.Filters = co.Filters
+		}
+		if co.Project != nil {
+			qOpts.Project = co.Project
+		}
+		qOpts.WithoutPagination = co.WithoutPagination
+	}
+	return qOpts
+}
+
+func (m *MongoClient) MergeFilters(filters ...primitive.M) primitive.M {
+	var mergedMap primitive.M = make(primitive.M)
+	for _, f := range filters {
+		for k, v := range f {
+			mergedMap[k] = v
+		}
+	}
+	return mergedMap
+}
+
+// --------- The MongoDatabase Type
+
+type MongoDatabase struct {
+	DB *mongo.Database
+}
+
+// --------- The MongoCollection Type
+
+type MongoCollection[T IModel] struct {
+	Collection mongo.Collection
+}
+
+func Collection[T IModel]() *MongoCollection[T] {
+	var M T
+	return &MongoCollection[T]{
+		Collection: *Client.DefaultDB.DB.Collection(M.CollectionName()),
+	}
+}
+
+func (collection *MongoCollection[T]) parseFilter(filter primitive.M) (primitive.M, error) {
+	for key, value := range filter {
+		if key == "_id" {
+			v, err := primitive.ObjectIDFromHex(value.(string))
+			if err != nil {
+				return nil, err
+			} else {
+				filter[key] = v
+			}
+		}
+	}
+	return filter, nil
+}
+
+func (collection *MongoCollection[T]) genInsertSettings(insertInfo interface{}) primitive.M {
+	settings := primitive.M{}
+	t := reflect.TypeOf(insertInfo)
+	v := reflect.ValueOf(insertInfo)
+	if t.Kind() == reflect.Map {
+		// map
+		for _, key := range v.MapKeys() {
+			settings[key.String()] = v.MapIndex(key).Interface()
+		}
+	} else {
+		// struct
+		settings = StructToMap(insertInfo)
+	}
+	settings["sys_updated_at"] = time.Now().String()[0:19]
+	delete(settings, "_id")
+	return settings
+}
+
+// Find ----------------------------------------------------------------------
+
+func (collection *MongoCollection[T]) FindOne(filter primitive.M, project primitive.M) (T, error) {
+	var result T
+	filter, err := collection.parseFilter(filter)
+	if err != nil {
+		return result, err
+	}
+	r := collection.Collection.FindOne(context.Background(), filter, options.FindOne().SetProjection(project))
+	err = r.Decode(&result)
+	if err != nil {
+		if err == mongo.ErrNoDocuments {
+			return result, nil
+		}
+		return result, err
+	}
+	return result, nil
+}
+
+func (collection *MongoCollection[T]) Find(filter primitive.M, project primitive.M) ([]T, error) {
+	var result []T
+	filter, err := collection.parseFilter(filter)
+	if err != nil {
+		return result, err
+	}
+	cursor, err := collection.Collection.Find(context.Background(), filter, options.Find().SetProjection(project))
+	if err != nil {
+		return nil, err
+	}
+	err = cursor.All(context.Background(), &result)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// Create ----------------------------------------------------------------------
+
+func (collection *MongoCollection[T]) InsertOne(document T) (*mongo.InsertOneResult, error) {
+	doc := collection.genInsertSettings(document)
+	return collection.Collection.InsertOne(context.Background(), doc)
+}
+
+// Update ----------------------------------------------------------------------
+
+func (collection *MongoCollection[T]) UpdateOne(filter primitive.M, insertInfo interface{}, extraSetting primitive.M) (*mongo.UpdateResult, error) {
+	filter, err := collection.parseFilter(filter)
+	if err != nil {
+		return nil, err
+	}
+	settings := collection.genInsertSettings(insertInfo)
+	update := primitive.M{
+		"$set": settings,
+	}
+	if extraSetting != nil {
+		update = MapMerge(update, extraSetting)
+	}
+	r, err := collection.Collection.UpdateOne(context.Background(), filter, update)
+	return r, err
+}
+
+func (collection *MongoCollection[T]) UpsertOne(filter primitive.M, insertInfo interface{}, extraSetting primitive.M) (*mongo.UpdateResult, error) {
+	filter, err := collection.parseFilter(filter)
+	if err != nil {
+		return nil, err
+	}
+	settings := collection.genInsertSettings(insertInfo)
+	options := options.Update().SetUpsert(true)
+	update := primitive.M{
+		"$set": settings,
+	}
+	if extraSetting != nil {
+		update = MapMerge(update, extraSetting)
+	}
+	r, err := collection.Collection.UpdateOne(context.Background(), filter, update, options)
+	return r, err
+}
+
+func (collection *MongoCollection[T]) UpsertMany(writeItems *[]UpsertSetting) (*mongo.BulkWriteResult, error) {
+	var writeModels []mongo.WriteModel
+	for _, item := range *writeItems {
+		updateModel := mongo.NewUpdateOneModel().SetFilter(item.Filter).SetUpdate(item.Update).SetUpsert(true)
+		writeModels = append(writeModels, updateModel)
+	}
+	res, err := collection.Collection.BulkWrite(context.Background(), writeModels)
+	return res, err
+}
+
+func (collection *MongoCollection[T]) FindOneAndUpdate(filter primitive.M, settings interface{}, extraSetting primitive.M) (T, error) {
+	var result T
+	filter, err := collection.parseFilter(filter)
+	if err != nil {
+		return result, err
+	}
+	_settings := collection.genInsertSettings(settings)
+	update := primitive.M{
+		"$set": _settings,
+	}
+	if extraSetting != nil {
+		update = MapMerge(update, extraSetting)
+	}
+	r := collection.Collection.FindOneAndUpdate(context.Background(), filter, update)
+	r.Decode(&result)
+	return result, nil
+}
+
+// Delete ----------------------------------------------------------------------
+
+func (collection *MongoCollection[T]) Delete(oid string) (*mongo.DeleteResult, error) {
+	filter, err := collection.parseFilter(bson.M{"_id": oid})
+	if err != nil {
+		return nil, err
+	}
+	r, err := collection.Collection.DeleteOne(context.Background(), filter)
+	return r, err
+}
+
+func (collection *MongoCollection[T]) DeleteMany(oidlist []string) (*mongo.DeleteResult, error) {
+	var ids []primitive.ObjectID
+	for _, oid := range oidlist {
+		_id, err := primitive.ObjectIDFromHex(oid)
+		if err != nil {
+			return nil, err
+		}
+		ids = append(ids, _id)
+	}
+	filter := bson.M{"_id": bson.M{"$in": ids}}
+	r, err := collection.Collection.DeleteMany(context.Background(), filter)
+	return r, err
+}
+
+// Aggregation ----------------------------------------------------------------------
+
+func (collection *MongoCollection[T]) Aggregate(pipeline []bson.M, extraOptions ...*QueryOptions) ([]bson.M, error) {
+	cursor, err := collection.Collection.Aggregate(context.Background(), pipeline)
+	if err != nil {
+		return nil, err
+	}
+	result := []bson.M{}
+	if err = cursor.All(context.Background(), &result); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+// --------- QueryOptions
+
+type QueryOptions struct {
+	Filters           primitive.M
+	Project           map[string]int
+	WithoutPagination bool
+}
+
+// --------- Bulk upsert settings
+
+type UpsertSetting struct {
+	Filter primitive.M
+	Update primitive.M
+}
+
+// --------- Initialize singleton
+
+func NewMongoClient(url string, dbname string) *MongoClient {
+	options := options.Client().ApplyURI(url)
+	client, err := mongo.Connect(context.Background(), options)
+	if err != nil {
+		panic(err)
+	}
+	db := &MongoDatabase{DB: client.Database(dbname)}
+	fmt.Println("Mongo Client Initialized")
+	return &MongoClient{Client: client, DefaultDB: db}
+}
+
+var Client *MongoClient
diff --git a/go.mod b/go.mod
index 95325b4..3952f90 100644
--- a/go.mod
+++ b/go.mod
@@ -2,10 +2,23 @@ module reed
 
 go 1.21.4
 
-require github.com/urfave/cli/v2 v2.26.0
+require (
+	github.com/urfave/cli/v2 v2.26.0
+	go.mongodb.org/mongo-driver v1.13.1
+)
 
 require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/golang/snappy v0.0.1 // indirect
+	github.com/klauspost/compress v1.13.6 // indirect
+	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
+	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
+	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
+	golang.org/x/text v0.7.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 1d06da2..4ab2a45 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,62 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
+github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM=
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=
+github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe h1:iruDEfMl2E6fbMZ9s0scYfZQ84/6SPL6zC8ACM2oIL0=
+github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/urfave/cli/v2 v2.26.0 h1:3f3AMg3HpThFNT4I++TKOejZO8yU55t3JnnSr4S4QEI=
 github.com/urfave/cli/v2 v2.26.0/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
+github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
+github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
+github.com/xdg-go/scram v1.1.2 h1:FHX5I5B4i4hKRVRBCFRxq1iQRej7WO3hhBuJf+UUySY=
+github.com/xdg-go/scram v1.1.2/go.mod h1:RT/sEzTbU5y00aCK8UOx6R7YryM0iF1N2MOmC3kKLN4=
+github.com/xdg-go/stringprep v1.0.4 h1:XLI/Ng3O1Atzq0oBs3TWm+5ZVgkq2aqdlvP9JtoZ6c8=
+github.com/xdg-go/stringprep v1.0.4/go.mod h1:mPGuuIYwz7CmR2bT9j4GbQqutWS1zV24gijq1dTyGkM=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
+github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d h1:splanxYIlg+5LfHAM6xpdFEAYOk8iySO56hMFq6uLyA=
+github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d/go.mod h1:rHwXgn7JulP+udvsHwJoVG1YGAP6VLg4y9I5dyZdqmA=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+go.mongodb.org/mongo-driver v1.13.1 h1:YIc7HTYsKndGK4RFzJ3covLz1byri52x0IoMB0Pt/vk=
+go.mongodb.org/mongo-driver v1.13.1/go.mod h1:wcDf1JBCXy2mOW0bWHwO/IOYqdca1MPCwDtFu/Z9+eo=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d h1:sK3txAijHtOK88l68nt020reeT1ZdKLIYetKl95FzVY=
+golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/model.go b/model.go
new file mode 100644
index 0000000..843a8cf
--- /dev/null
+++ b/model.go
@@ -0,0 +1,5 @@
+package reed
+
+type IModel interface {
+	CollectionName() string
+}