Create a new observation

api/handler.go

@@ -48,6 +48,7 @@ func Handler() *mux.Router {
 	m.Get(router.DeleteObservationType).Handler(handler(serveDeleteObservationType))
 
 	m.Get(router.Observation).Handler(handler(serveObservation))
+	m.Get(router.CreateObservation).Handler(handler(serveCreateObservation))
 
 	return m
 }

api/observations.go

@@ -1,10 +1,12 @@
 package api
 
 import (
+	"encoding/json"
 	"net/http"
 	"strconv"
 
 	"github.com/gorilla/mux"
+	"github.com/thermokarst/bactdb/models"
 )
 
 func serveObservation(w http.ResponseWriter, r *http.Request) error {
@@ -20,3 +22,21 @@ func serveObservation(w http.ResponseWriter, r *http.Request) error {
 
 	return writeJSON(w, observation)
 }
+
+func serveCreateObservation(w http.ResponseWriter, r *http.Request) error {
+	var observation models.Observation
+	err := json.NewDecoder(r.Body).Decode(&observation)
+	if err != nil {
+		return err
+	}
+
+	created, err := store.Observations.Create(&observation)
+	if err != nil {
+		return err
+	}
+	if created {
+		w.WriteHeader(http.StatusCreated)
+	}
+
+	return writeJSON(w, observation)
+}

api/observations_test.go

@@ -38,3 +38,30 @@ func TestObservation_Get(t *testing.T) {
 		t.Errorf("got %+v but wanted %+v", got, want)
 	}
 }
+
+func TestObservation_Create(t *testing.T) {
+	setup()
+
+	want := newObservation()
+
+	calledPost := false
+	store.Observations.(*models.MockObservationsService).Create_ = func(observation *models.Observation) (bool, error) {
+		if !normalizeDeepEqual(want, observation) {
+			t.Errorf("wanted request for observation %d but got %d", want, observation)
+		}
+		calledPost = true
+		return true, nil
+	}
+
+	success, err := apiClient.Observations.Create(want)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !calledPost {
+		t.Error("!calledPost")
+	}
+	if !success {
+		t.Error("!success")
+	}
+}

datastore/observations.go

@@ -1,6 +1,10 @@
 package datastore
 
-import "github.com/thermokarst/bactdb/models"
+import (
+	"time"
+
+	"github.com/thermokarst/bactdb/models"
+)
 
 func init() {
 	DB.AddTableWithName(models.Observation{}, "observations").SetKeys(true, "Id")
@@ -20,3 +24,13 @@ func (s *observationsStore) Get(id int64) (*models.Observation, error) {
 	}
 	return observation[0], nil
 }
+
+func (s *observationsStore) Create(observation *models.Observation) (bool, error) {
+	currentTime := time.Now()
+	observation.CreatedAt = currentTime
+	observation.UpdatedAt = currentTime
+	if err := s.dbh.Insert(observation); err != nil {
+		return false, err
+	}
+	return true, nil
+}

datastore/observations_test.go

@@ -45,3 +45,23 @@ func TestObservationsStore_Get_db(t *testing.T) {
 		t.Errorf("got observation %+v, want %+v", observation, want)
 	}
 }
+
+func TestObservationsStore_Create_db(t *testing.T) {
+	tx, _ := DB.Begin()
+	defer tx.Rollback()
+
+	observation := newObservation(t, tx)
+
+	d := NewDatastore(tx)
+
+	created, err := d.Observations.Create(observation)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !created {
+		t.Error("!created")
+	}
+	if observation.Id == 0 {
+		t.Error("want nonzero observation.Id after submitting")
+	}
+}

models/observations.go

@@ -2,6 +2,7 @@ package models
 
 import (
 	"errors"
+	"net/http"
 	"strconv"
 	"time"
 
@@ -28,6 +29,9 @@ func NewObservation() *Observation {
 type ObservationsService interface {
 	// Get an observation
 	Get(id int64) (*Observation, error)
+
+	// Create an observation
+	Create(observation *Observation) (bool, error)
 }
 
 var (
@@ -60,8 +64,28 @@ func (s *observationsService) Get(id int64) (*Observation, error) {
 	return observation, nil
 }
 
+func (s *observationsService) Create(observation *Observation) (bool, error) {
+	url, err := s.client.url(router.CreateObservation, nil, nil)
+	if err != nil {
+		return false, err
+	}
+
+	req, err := s.client.NewRequest("POST", url.String(), observation)
+	if err != nil {
+		return false, err
+	}
+
+	resp, err := s.client.Do(req, &observation)
+	if err != nil {
+		return false, err
+	}
+
+	return resp.StatusCode == http.StatusCreated, nil
+}
+
 type MockObservationsService struct {
 	Get_    func(id int64) (*Observation, error)
+	Create_ func(observation *Observation) (bool, error)
 }
 
 var _ObservationsService = &MockObservationsService{}
@@ -72,3 +96,10 @@ func (s *MockObservationsService) Get(id int64) (*Observation, error) {
 	}
 	return s.Get_(id)
 }
+
+func (s *MockObservationsService) Create(observation *Observation) (bool, error) {
+	if s.Create_ == nil {
+		return false, nil
+	}
+	return s.Create_(observation)
+}

models/observations_test.go

@@ -43,3 +43,39 @@ func TestObservationService_Get(t *testing.T) {
 		t.Errorf("Observations.Get return %+v, want %+v", observation, want)
 	}
 }
+
+func TestObservationService_Create(t *testing.T) {
+	setup()
+	defer teardown()
+
+	want := newObservation()
+
+	var called bool
+	mux.HandleFunc(urlPath(t, router.CreateObservation, nil), func(w http.ResponseWriter, r *http.Request) {
+		called = true
+		testMethod(t, r, "POST")
+		testBody(t, r, `{"id":1,"observation_name":"Test Observation","observation_type_id":0,"created_at":"0001-01-01T00:00:00Z","updated_at":"0001-01-01T00:00:00Z","deleted_at":{"Time":"0001-01-01T00:00:00Z","Valid":false}}`+"\n")
+
+		w.WriteHeader(http.StatusCreated)
+		writeJSON(w, want)
+	})
+
+	observation := newObservation()
+	created, err := client.Observations.Create(observation)
+	if err != nil {
+		t.Errorf("Observations.Create returned error: %v", err)
+	}
+
+	if !created {
+		t.Error("!created")
+	}
+
+	if !called {
+		t.Fatal("!called")
+	}
+
+	normalizeTime(&want.CreatedAt, &want.UpdatedAt, &want.DeletedAt)
+	if !reflect.DeepEqual(observation, want) {
+		t.Errorf("Observations.Create returned %+v, want %+v", observation, want)
+	}
+}

router/api.go

@@ -39,6 +39,7 @@ func API() *mux.Router {
 	m.Path("/observation_types/{Id:.+}").Methods("DELETE").Name(DeleteObservationType)
 
 	// Observations
+	m.Path("/observations").Methods("POST").Name(CreateObservation)
 	m.Path("/observations/{Id:.+}").Methods("GET").Name(Observation)
 
 	return m

router/routes.go

@@ -30,4 +30,5 @@ const (
 	DeleteObservationType = "observation_type:delete"
 
 	Observation       = "observation:get"
+	CreateObservation = "observation:create"
 )