diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e1514fd
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+queues-go
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 90334fd..9058b0c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM golang:alpine
-RUN mkdir /usr/src/app
-WORKDIR /usr/src/app
+RUN mkdir /code
+WORKDIR /code
 COPY . .
 RUN go build
 ENTRYPOINT ["./queues-go"]
\ No newline at end of file
diff --git a/app/routers/put.go b/app/routers/put.go
index 7a2759b..cfd9834 100644
--- a/app/routers/put.go
+++ b/app/routers/put.go
@@ -5,12 +5,14 @@ import (
 	"net/http"
 	tasks "queues-go/app/storage/mongo/collections"
 	"time"
+
+	"go.mongodb.org/mongo-driver/bson"
 )
 
 type PutRequestBody struct {
-	Payload          json.RawMessage `json:"payload"`
-	SecondsToExecute int             `json:"seconds_to_execute"`
-	Delay            *int            `json:"delay"`
+	Payload          bson.M `json:"payload"`
+	SecondsToExecute int    `json:"seconds_to_execute"`
+	Delay            *int   `json:"delay"`
 }
 
 func Put(w http.ResponseWriter, r *http.Request) {
@@ -21,6 +23,7 @@ func Put(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
+
 	queue := r.Header.Get("queue")
 	var availableFrom time.Time
 	if body.Delay == nil {
@@ -28,6 +31,7 @@ func Put(w http.ResponseWriter, r *http.Request) {
 	} else {
 		availableFrom = time.Now().Add(time.Second + time.Duration(*body.Delay))
 	}
+
 	task := tasks.InsertedTask{
 		Queue:            queue,
 		Payload:          body.Payload,
@@ -37,10 +41,12 @@ func Put(w http.ResponseWriter, r *http.Request) {
 		TakenAt:          nil,
 		Attempts:         0,
 	}
+
 	err = tasks.Add(task)
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
+
 	w.WriteHeader(http.StatusAccepted)
 }
diff --git a/app/routers/take.go b/app/routers/take.go
index 8fa92ea..90e4545 100644
--- a/app/routers/take.go
+++ b/app/routers/take.go
@@ -20,9 +20,11 @@ func Take(w http.ResponseWriter, r *http.Request) {
 	queue := r.Header.Get("queue")
 	task, err := tasks.Take(queue)
 	if err != nil {
+		println("Error taking")
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
+
 	var response TakeResponse
 	if task == nil {
 		response.Task = nil
@@ -33,10 +35,13 @@ func Take(w http.ResponseWriter, r *http.Request) {
 			Payload: task.Payload,
 		}
 	}
+
 	data, err := json.Marshal(response)
 	if err != nil {
+		println("Error marshalling")
 		w.WriteHeader(http.StatusInternalServerError)
 		return
 	}
+
 	w.Write(data)
 }
diff --git a/app/storage/mongo/collections/tasks.go b/app/storage/mongo/collections/tasks.go
index a479d4c..a0733b2 100644
--- a/app/storage/mongo/collections/tasks.go
+++ b/app/storage/mongo/collections/tasks.go
@@ -23,13 +23,13 @@ type Task struct {
 }
 
 type InsertedTask struct {
-	Queue            string      `bson:"queue"`
-	Payload          interface{} `bson:"payload"`
-	PutAt            time.Time   `bson:"put_at"`
-	AvailableFrom    time.Time   `bson:"available_from"`
-	SecondsToExecute int         `bson:"seconds_to_execute"`
-	TakenAt          *time.Time  `bson:"taken_at"`
-	Attempts         int         `bson:"attempts"`
+	Queue            string     `bson:"queue"`
+	Payload          bson.M     `bson:"payload"`
+	PutAt            time.Time  `bson:"put_at"`
+	AvailableFrom    time.Time  `bson:"available_from"`
+	SecondsToExecute int        `bson:"seconds_to_execute"`
+	TakenAt          *time.Time `bson:"taken_at"`
+	Attempts         int        `bson:"attempts"`
 }
 
 func Add(task InsertedTask) error {
@@ -64,6 +64,8 @@ func Take(queue string) (*Task, error) {
 	}
 	_, err = collection().UpdateByID(context.TODO(), task.Id, bson.M{"$set": bson.M{"taken_at": now, "attempts": task.Attempts + 1}})
 	if err != nil {
+		println("Error updaing")
+		println(err.Error())
 		return nil, errors.ErrInternalError
 	}
 	return task, nil
@@ -78,12 +80,16 @@ func findTask(queue string, now time.Time) (*Task, error) {
 		},
 	)
 	if err != nil {
+		println("Error find")
+		println(err.Error())
 		return nil, errors.ErrInternalError
 	}
 
 	var results []Task
 	err = cursor.All(context.TODO(), &results)
 	if err != nil {
+		println("Error all")
+		println(err.Error())
 		return nil, errors.ErrInternalError
 	}
 
diff --git a/queues-go b/queues-go
deleted file mode 100755
index 4fd67a1..0000000
Binary files a/queues-go and /dev/null differ