api-call-system-#10 (#13)

Co-authored-by: Fenpaws <soxx@fenpa.ws>
Reviewed-on: anthrove/e621-to-graph#13
Reviewed-by: SoXX <fenpaws@noreply.localhost>
Co-authored-by: Lennard Brinkhaus <lennard.brinkhaus@noreply.localhost>
Co-committed-by: Lennard Brinkhaus <lennard.brinkhaus@noreply.localhost>

api/user.go

@@ -6,12 +6,14 @@ import (
 	"e621_to_neo4j/e621"
 	"e621_to_neo4j/services"
 	"fmt"
+	log "github.com/sirupsen/logrus"
 	"net/http"
 )
 
 // UserHandler is the handler for the user API
 func UserHandler(ctx context.Context, graphConnection database.GraphConnection, e621Client *e621.Client) func(response http.ResponseWriter, request *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
+		log.Println("Request")
 		if r.Method != http.MethodPost {
 			w.WriteHeader(http.StatusMethodNotAllowed)
 			fmt.Fprintf(w, "Only POST requests are allowed")

database/neo4j/impl.go

@@ -12,6 +12,10 @@ type neo4jConnection struct {
 	driver neo4j.DriverWithContext
 }
 
+func NewNeo4JConnection() database.GraphConnection {
+	return &neo4jConnection{}
+}
+
 func (c *neo4jConnection) CheckUserToPostLink(ctx context.Context, e621PostID int64, e621UserID int64) (bool, error) {
 	return RelationshipCheckUserToPost(ctx, c.driver, e621PostID, e621UserID)
 }
@@ -57,10 +61,6 @@ func (c *neo4jConnection) Connect(ctx context.Context, endpoint string, username
 	return nil
 }
 
-func NewNeo4JConnection() database.GraphConnection {
-	return &neo4jConnection{}
-}
-
 func useConsoleLogger(level neo4j.LogLevel) func(config *config.Config) {
 	return func(config *config.Config) {
 		config.Log = neo4j.ConsoleLogger(level)

e621/client.go

@@ -1,10 +1,6 @@
 package e621
 
-import (
+import "golang.org/x/time/rate"
-	"e621_to_neo4j/utils"
-	"golang.org/x/time/rate"
-	"net/http"
-)
 
 const (
 	baseURL = "https://e621.net"
@@ -14,18 +10,16 @@ const (
 type Client struct {
 	apiKey    string
 	username  string
-	client   *http.Client
+	scheduler *Scheduler
-	limiter  *rate.Limiter
-	queue    *utils.Queue
 }
 
 // NewClient creates a new e621 API client.
 func NewClient(apiKey string, username string) *Client {
+	scheduler := NewScheduler()
+	scheduler.SetLimiter(rate.NewLimiter(1, 2))
 	return &Client{
 		apiKey:    apiKey,
 		username:  username,
-		client:   &http.Client{},
+		scheduler: scheduler,
-		limiter:  rate.NewLimiter(1, 2),
-		queue:    &utils.Queue{},
 	}
 }

e621/favorite.go

@@ -1,39 +1,14 @@
 package e621
 
 import (
+	"context"
 	"e621_to_neo4j/e621/models"
 	"fmt"
-	log "github.com/sirupsen/logrus"
 )
 
 // GetFavorites retrieves all favorites from the e621 API.
-func (c *Client) GetFavorites(user models.E621User) ([]models.Post, error) {
+func (c *Client) GetFavorites(_ context.Context, user models.E621User, page int64) func() (models.PostResponseWrapper, error) {
-	page := 1
+	URIPath := fmt.Sprintf("favorites.json?user_id=%d&limit=%d&page=%d", user.ID, 320, page)
-	var allFavorites []models.Post
+	e621Task := NewE621ApiTask[models.PostResponseWrapper](URIPath)
-	var URIPath string
+	return Schedule[models.PostResponseWrapper](c.scheduler, e621Task, c.username, c.apiKey)
-
-	for {
-		URIPath = fmt.Sprintf("favorites.json?user_id=%d&limit=%d&page=%d", user.ID, 320, page)
-		log.WithFields(log.Fields{
-			"id":       user.ID,
-			"fav_page": page,
-			"uri":      URIPath,
-		}).Debug("Requesting API for favorites")
-		favorite, err := ExecuteGetAPIRequest[models.PostResponseWrapper](c, URIPath)
-		if err != nil {
-			log.Printf(err.Error())
-		}
-
-		// Append the fetched posts to the result slice
-		allFavorites = append(allFavorites, favorite.Posts...)
-
-		// If no more posts are returned, return the accumulated favorites
-		if len(favorite.Posts) == 0 {
-			return allFavorites, nil
-		}
-
-		// Update the last post ID for the next page request
-		page += 1
-
-	}
 }

e621/request.go

@@ -1,45 +1,39 @@
 package e621
 
 import (
-	"context"
+	"e621_to_neo4j/utils"
-	"encoding/json"
 	"fmt"
-	"io"
+	log "github.com/sirupsen/logrus"
 	"net/http"
 )
 
-func ExecuteGetAPIRequest[dataType any](c *Client, URIPath string) (*dataType, error) {
+func ExecuteGetAPIRequest(schedulerTask utils.SchedulerTask) {
 	var err error
-	c.limiter.Wait(context.Background())
+	log.Debug("executing scheduler task")
-	url := fmt.Sprintf("%s/%s", baseURL, URIPath)
+
+	url := fmt.Sprintf("%s/%s", baseURL, schedulerTask.UriPath())
 	req, err := http.NewRequest("GET", url, nil)
 	if err != nil {
-		return nil, err
+		schedulerTask.SendError(err)
+		return
 	}
 
 	req.Header.Set("User-Agent", "FavGetter (by Selloo)")
 	req.Header.Add("Accept", "application/json")
-	req.SetBasicAuth(c.username, c.apiKey)
+	req.SetBasicAuth(schedulerTask.BasicAuth())
 
-	resp, err := c.client.Do(req)
+	client := http.Client{}
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
 
-	body, err := io.ReadAll(resp.Body)
+	resp, err := client.Do(req)
 	if err != nil {
-		return nil, err
+		schedulerTask.SendStatusCode(resp.StatusCode)
+		return
 	}
 
 	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("failed to retrieve posts: %s", resp.Status)
+		schedulerTask.SendStatusCode(resp.StatusCode)
+		return
 	}
 
-	var r dataType
+	schedulerTask.SendResponse(resp)
-	err = json.Unmarshal(body, &r)
-	if err != nil {
-		return nil, err
-	}
-	return &r, nil
 }

e621/scheduler.go

@@ -0,0 +1,61 @@
+package e621
+
+import (
+	"context"
+	"e621_to_neo4j/utils"
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/time/rate"
+)
+
+type Scheduler struct {
+	queue   utils.Queue
+	limiter *rate.Limiter
+}
+
+func NewScheduler() *Scheduler {
+	scheduler := &Scheduler{
+		queue:   utils.NewQueue(),
+		limiter: nil,
+	}
+	go scheduler.StartExecutionHandler()
+	return scheduler
+}
+
+func Schedule[T utils.DataType](s *Scheduler, t utils.Task[T], username string, apiKey string) func() (T, error) {
+	channel := make(chan utils.DataResponse[T])
+	schedulerTask := NewSchedulerTaskImpl[T](t, channel, username, apiKey)
+	log.Debug("Psuh task")
+	err := s.queue.Push(schedulerTask)
+	log.Debug("Element pushed")
+
+	if err != nil {
+		return func() (T, error) {
+			var nil T
+			return nil, err
+		}
+	}
+	return func() (T, error) {
+		data := <-channel
+		return data.Data, data.Error
+	}
+}
+
+func (s *Scheduler) SetLimiter(limiter *rate.Limiter) {
+	s.limiter = limiter
+}
+
+func (s *Scheduler) StartExecutionHandler() {
+	for {
+		if s.limiter != nil {
+			s.limiter.Wait(context.Background())
+		}
+		s.queue.WaitForElement()
+		log.Debug("element found")
+		task, err := s.queue.Pop()
+		if err != nil {
+			continue
+		}
+		ExecuteGetAPIRequest(task)
+	}
+
+}

e621/schedulertask.go

@@ -0,0 +1,42 @@
+package e621
+
+import (
+	"e621_to_neo4j/utils"
+	"net/http"
+)
+
+type schedulerTaskImpl[T utils.DataType] struct {
+	task     utils.Task[T]
+	channel  chan utils.DataResponse[T]
+	username string
+	apiKey   string
+}
+
+func (s schedulerTaskImpl[T]) BasicAuth() (string, string) {
+	return s.username, s.apiKey
+}
+
+func NewSchedulerTaskImpl[T utils.DataType](task utils.Task[T], channel chan utils.DataResponse[T], username string, apiKey string) utils.SchedulerTask {
+	return &schedulerTaskImpl[T]{
+		task:     task,
+		channel:  channel,
+		username: username,
+		apiKey:   apiKey,
+	}
+}
+
+func (s schedulerTaskImpl[T]) SendError(err error) {
+	s.channel <- s.task.HandleError(err)
+}
+
+func (s schedulerTaskImpl[T]) UriPath() string {
+	return s.task.UriPath()
+}
+
+func (s schedulerTaskImpl[T]) SendStatusCode(statusCode int) {
+	s.channel <- s.task.HandleStatusCode(statusCode)
+}
+
+func (s schedulerTaskImpl[T]) SendResponse(response *http.Response) {
+	s.channel <- s.task.HandleResponse(response)
+}

e621/task.go

@@ -0,0 +1,56 @@
+package e621
+
+import (
+	"e621_to_neo4j/utils"
+	"encoding/json"
+	"net/http"
+)
+
+type e621APITask[T utils.DataType] struct {
+	uri string
+}
+
+func (e e621APITask[T]) UriPath() string {
+	return e.uri
+}
+
+func (e e621APITask[T]) HandleStatusCode(statusCode int) utils.DataResponse[T] {
+	var err error
+	switch statusCode {
+	case 421:
+		err = utils.RateLimitReachedError{}
+	case 424:
+		err = utils.InvalidParametersError{}
+	case 520:
+		err = utils.OriginConnectionTimeOutError{}
+	case 522:
+		err = utils.OriginConnectionTimeOutError{}
+	case 524:
+		err = utils.OriginConnectionTimeOutError{}
+	case 525:
+		err = utils.SSLHandshakeFailedError{}
+	default:
+		err = utils.StatusCodesToError(statusCode)
+	}
+	return utils.DataResponse[T]{Error: err}
+}
+
+func (e e621APITask[T]) HandleResponse(responseData *http.Response) utils.DataResponse[T] {
+	var data T
+	err := json.NewDecoder(responseData.Body).Decode(&data)
+	defer responseData.Body.Close()
+	if err != nil {
+		return utils.DataResponse[T]{Error: err}
+	}
+	return utils.DataResponse[T]{Data: data}
+}
+
+func (e e621APITask[T]) HandleError(error error) utils.DataResponse[T] {
+	return utils.DataResponse[T]{Error: error}
+}
+
+func NewE621ApiTask[T utils.DataType](uri string) utils.Task[T] {
+	return &e621APITask[T]{
+		uri: uri,
+	}
+}

e621/users.go

@@ -3,19 +3,11 @@ package e621
 import (
 	"e621_to_neo4j/e621/models"
 	"fmt"
-	log "github.com/sirupsen/logrus"
 )
 
 // GetUserInfo retrieves the users information from e621 API.
-func (c *Client) GetUserInfo(username string) (models.E621User, error) {
+func (c *Client) GetUserInfo(username string) func() (models.E621User, error) {
 	URIPath := fmt.Sprintf("users/%s.json", username)
-	log.WithFields(log.Fields{
+	e621Task := NewE621ApiTask[models.E621User](URIPath)
-		"username": username,
+	return Schedule[models.E621User](c.scheduler, e621Task, c.username, c.apiKey)
-		"uri":      URIPath,
-	}).Debug("Requesting API for user details")
-	user, err := ExecuteGetAPIRequest[models.E621User](c, URIPath)
-	if err != nil {
-		return models.E621User{}, err
-	}
-	return *user, nil
 }

runMemgraphDev.cmd

@@ -0,0 +1 @@
+docker run -it -p 7687:7687 -p 7444:7444 -p 3000:3000 -v mg_lib:/var/lib/memgraph memgraph/memgraph-platform

services/manager.go

@@ -12,9 +12,13 @@ import (
 
 func ScrapeUser(ctx context.Context, graphConnection database.GraphConnection, e621Client e621.Client, username string) error {
 	var err error
+	var page int64 = 1
+	var allFavorites []models.Post
 
-	e621User, err := e621Client.GetUserInfo(username)
+	AwaitE621User := e621Client.GetUserInfo(username)
+	e621User, err := AwaitE621User()
 	if err != nil {
+		log.Info(err)
 		return err
 	}
 
@@ -42,21 +46,47 @@ func ScrapeUser(ctx context.Context, graphConnection database.GraphConnection, e
 		"id":   e621User.ID,
 	}).Info("Getting favorites for user")
 	start := time.Now()
-	userFavorites, err := e621Client.GetFavorites(e621User)
+
+	for {
+		AwaitE621Favorites := e621Client.GetFavorites(ctx, e621User, page)
+
+		log.WithFields(log.Fields{
+			"id":       e621User.ID,
+			"fav_page": page,
+		}).Debug("Requesting API for favorites")
+
+		favoritesPage, err := AwaitE621Favorites()
+		if err != nil {
+			log.Printf(err.Error())
+		}
+
+		// Append the fetched posts to the result slice
+		allFavorites = append(allFavorites, favoritesPage.Posts...)
+
+		// If no more posts are returned, return the accumulated favorites
+		if len(favoritesPage.Posts) == 0 {
+			break
+		}
+
+		// Update the last post ID for the next page request
+		page += 1
+
+	}
+
 	if err != nil {
 		log.Fatal(err)
 	}
 	log.WithFields(log.Fields{
 		"user":        e621User.Name,
 		"id":          e621User.ID,
-		"post_amount": len(userFavorites),
+		"post_amount": len(allFavorites),
 		"scrape_time": time.Since(start),
 	}).Info("Getting favorites for user")
 
 	startUploadPosts := time.Now()
 
 	// Uploads all Tags, Posts as Nodes to Neo4j
-	for i, post := range userFavorites {
+	for i, post := range allFavorites {
 		if exists, err := graphConnection.CheckUserToPostLink(ctx, post.ID, e621User.ID); err == nil && exists {
 			log.WithFields(log.Fields{
 				"user":         e621User.Name,
@@ -77,7 +107,7 @@ func ScrapeUser(ctx context.Context, graphConnection database.GraphConnection, e
 			"user":        e621User.Name,
 			"id":          e621User.ID,
 			"post_number": i,
-			"post_amount": len(userFavorites),
+			"post_amount": len(allFavorites),
 			"post_id":     post.ID,
 			"upload_time": time.Since(start),
 		}).Debug("Uploading post")
@@ -122,7 +152,7 @@ func ScrapeUser(ctx context.Context, graphConnection database.GraphConnection, e
 			"user":        e621User.Name,
 			"id":          e621User.ID,
 			"post_number": i,
-			"post_amount": len(userFavorites),
+			"post_amount": len(allFavorites),
 			"post_id":     post.ID,
 			"upload_time": time.Since(start),
 		}).Debug("Making relationship")
@@ -258,7 +288,7 @@ func uploadCopyrightTagRelationship(ctx context.Context, graphConnection databas
 		if err != nil {
 			return err
 		}
-		// log.Printf("Created PostToTagRelationship for post: %d to copyrigh tag: %s", post.ID, copyrightTag)
+		// log.Printf("Created PostToTagRelationship for post: %d to copyright tag: %s", post.ID, copyrightTag)
 
 	}
 	return nil

utils/error.go

@@ -0,0 +1,105 @@
+package utils
+
+import "fmt"
+
+func StatusCodesToError(statusCode int) error {
+	var err error
+	switch statusCode {
+	case 403:
+		err = AccessDeniedError{}
+	case 404:
+		err = NotFoundError{}
+	case 412:
+		err = PreconditionFailedError{}
+	case 421:
+		err = RateLimitReachedError{}
+	case 424:
+		err = InvalidParametersError{}
+	case 500:
+		err = InternalServerError{}
+	case 502:
+		err = BadGatewayError{}
+	case 503:
+		err = ServiceUnavailableError{}
+	default:
+		err = fmt.Errorf("unhandels status code: %d", statusCode)
+	}
+	return err
+}
+
+type AccessDeniedError struct {
+}
+
+func (_ AccessDeniedError) Error() string {
+	return "access denied"
+}
+
+type NotFoundError struct {
+}
+
+func (_ NotFoundError) Error() string {
+	return "not found"
+}
+
+type PreconditionFailedError struct {
+}
+
+func (_ PreconditionFailedError) Error() string {
+	return "precondition failed"
+}
+
+type RateLimitReachedError struct {
+}
+
+func (_ RateLimitReachedError) Error() string {
+	return "rate limit reached"
+}
+
+type InvalidParametersError struct {
+}
+
+func (_ InvalidParametersError) Error() string {
+	return "invalide parameters"
+}
+
+type InternalServerError struct {
+}
+
+func (_ InternalServerError) Error() string {
+	return "internal server error"
+}
+
+type BadGatewayError struct {
+}
+
+func (_ BadGatewayError) Error() string {
+	return "bad gateway"
+}
+
+type ServiceUnavailableError struct {
+}
+
+func (_ ServiceUnavailableError) Error() string {
+	return "service unavailable"
+}
+
+type UnknownError struct {
+}
+
+func (_ UnknownError) Error() string {
+	return "unknown error"
+}
+
+type OriginConnectionTimeOutError struct {
+}
+
+func (_ OriginConnectionTimeOutError) Error() string {
+	return "origin connection time-out"
+}
+
+type SSLHandshakeFailedError struct {
+}
+
+func (_ SSLHandshakeFailedError) Error() string {
+	return "ssl handshake failed"
+}

utils/queue.go

@@ -2,32 +2,43 @@ package utils
 
 import (
 	"errors"
+	log "github.com/sirupsen/logrus"
 )
 
-type Task struct {
-	URIPath string   `json:"url,omitempty" :"url"`
-	Methode string   `json:"method,omitempty" :"method"`
-	Channel chan any `:"channel"`
-}
-
 type Queue struct {
-	elements []Task
+	tasks         []SchedulerTask
+	notifyChannel chan bool
 }
 
-func (queue *Queue) Pop() (Task, error) {
+func NewQueue() Queue {
-	if len(queue.elements) == 0 {
+	return Queue{
-		return Task{}, errors.New("try to remove an element of a empty queue")
+		notifyChannel: make(chan bool),
 	}
-	task := queue.elements[0]
+}
-	queue.elements = queue.elements[1:]
+
+// WaitForElement need to be called everytime before Popping an Element!
+// Also, it is required to have this function called in a separate go-routine because Push use the NotifyChannel in the
+// routine. So the thread waits, till WaitForElement pulls the Item from the channel
+// FIXME this should be fixed in future. require more discussion what is the best way.
+func (queue *Queue) WaitForElement() {
+	log.Debug("waiting for element")
+	_ = <-queue.notifyChannel
+}
+
+func (queue *Queue) Pop() (SchedulerTask, error) {
+	if len(queue.tasks) == 0 {
+		return nil, errors.New("try to remove an element of a empty queue")
+	}
+	task := queue.tasks[0]
+	queue.tasks = queue.tasks[1:]
 	return task, nil
 }
 
-func (queue *Queue) Push(task Task) error {
+func (queue *Queue) Push(task SchedulerTask) error {
-	empty := Task{}
+	if task == nil {
-	if task == empty {
 		return errors.New("try to add task but task is empty")
 	}
-	queue.elements = append(queue.elements, task)
+	queue.tasks = append(queue.tasks, task)
+	queue.notifyChannel <- true
 	return nil
 }

utils/queue_test.go

@@ -1,45 +1,65 @@
 package utils
 
 import (
+	"net/http"
 	"reflect"
 	"testing"
 )
 
+type schedulerTaskImplDummy struct {
+}
+
+func (s schedulerTaskImplDummy) BasicAuth() (string, string) {
+	return "", ""
+}
+
+func (s schedulerTaskImplDummy) UriPath() string {
+	return ""
+}
+
+func (s schedulerTaskImplDummy) SendError(_ error) {
+	return
+}
+
+func (s schedulerTaskImplDummy) SendStatusCode(_ int) {
+	return
+}
+
+func (s schedulerTaskImplDummy) SendResponse(_ *http.Response) {
+	return
+}
+
 func TestQueue_Pop(t *testing.T) {
 	type fields struct {
-		elements []Task
+		elements []SchedulerTask
 	}
 	tests := []struct {
 		name    string
 		fields  fields
-		want    Task
+		want    SchedulerTask
 		wantErr bool
 	}{
 		{
 			name:    "Pop element of empty list",
 			fields:  fields{},
-			want:    Task{},
+			want:    nil,
 			wantErr: true,
 		},
 		{
 			name: "Pop element of a filled list with three elements",
-			fields: fields{elements: []Task{
+			fields: fields{elements: []SchedulerTask{
-				{URIPath: "https://e621.net0....", Methode: "GET", Channel: nil},
+				schedulerTaskImplDummy{},
-				{URIPath: "https://e621.net1....", Methode: "GET", Channel: nil},
+				schedulerTaskImplDummy{},
-				{URIPath: "https://e621.net2....", Methode: "GET", Channel: nil},
+				schedulerTaskImplDummy{},
 			}},
-			want: Task{
+			want:    schedulerTaskImplDummy{},
-				URIPath: "https://e621.net0....",
-				Methode: "GET",
-				Channel: nil,
-			},
 			wantErr: false,
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			queue := &Queue{
-				elements: tt.fields.elements,
+				tasks: tt.fields.elements,
 			}
 			got, err := queue.Pop()
 			if (err != nil) != tt.wantErr {
@@ -55,42 +75,32 @@ func TestQueue_Pop(t *testing.T) {
 
 func TestQueue_Push(t *testing.T) {
 	t.Run("Push tasks to empty queue", func(t *testing.T) {
-		queue := Queue{elements: []Task{}}
+		queue := Queue{tasks: []SchedulerTask{}, notifyChannel: make(chan bool)}
-		task := Task{
+		go queue.WaitForElement()
-			URIPath: "http://e621.net0....",
+		task := schedulerTaskImplDummy{}
-			Methode: "GET",
-			Channel: nil,
-		}
 		err := queue.Push(task)
 		if err != nil {
 			t.Errorf("Push() error = %v", err)
 		}
-		if len(queue.elements) != 1 {
+		if len(queue.tasks) != 1 {
 			t.Errorf("Push() error = queue is not one")
 		}
-		if queue.elements[0] != task {
+		if queue.tasks[0] != task {
 			t.Errorf("Push() error = wrong queue task in queue")
 		}
 	})
 	t.Run("Push tasks to filled queue", func(t *testing.T) {
-		queue := Queue{elements: []Task{{
+		queue := Queue{tasks: []SchedulerTask{schedulerTaskImplDummy{}}, notifyChannel: make(chan bool)}
-			URIPath: "http://e621.net0....",
+		go queue.WaitForElement()
-			Methode: "GET",
+		task := schedulerTaskImplDummy{}
-			Channel: nil,
-		}}}
-		task := Task{
-			URIPath: "http://e621.net1....",
-			Methode: "GET",
-			Channel: nil,
-		}
 		err := queue.Push(task)
 		if err != nil {
 			t.Errorf("Push() error = %v", err)
 		}
-		if len(queue.elements) != 2 {
+		if len(queue.tasks) != 2 {
 			t.Errorf("Push() error = queue is not two")
 		}
-		if queue.elements[1] != task {
+		if queue.tasks[1] != task {
 			t.Errorf("Push() error = wrong queue task in queue")
 		}
 	})

utils/scheduler.go

@@ -0,0 +1,30 @@
+package utils
+
+import (
+	"e621_to_neo4j/e621/models"
+	"net/http"
+)
+
+type DataResponse[T DataType] struct {
+	Data  T
+	Error error
+}
+
+type DataType interface {
+	models.E621User | models.PostResponseWrapper
+}
+
+type Task[T DataType] interface {
+	UriPath() string
+	HandleError(error error) DataResponse[T]
+	HandleStatusCode(statusCode int) DataResponse[T]
+	HandleResponse(responseData *http.Response) DataResponse[T]
+}
+
+type SchedulerTask interface {
+	UriPath() string
+	SendStatusCode(statusCode int)
+	SendError(err error)
+	SendResponse(response *http.Response)
+	BasicAuth() (string, string)
+}