Implement get extractions

@@ -59,6 +59,7 @@ func NewApp(config Config) *App {
 
 	app.echo.POST("/users", app.PostUsers)
 	app.echo.POST("/users/tokens", app.PostTokens)
+	app.echo.GET("/extractions", app.GetExtractions, auth)
 	app.echo.POST("/extractions", app.PostExtractions, auth)
 
 	extraction := app.echo.Group("/extractions/:no")

@@ -15,6 +15,27 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 )
 
+func (app *App) GetExtractions(c echo.Context) error {
+	userNo := c.Get("user").(*jwt.Token).Claims.(*AuthClaims).UserNo
+	phone := c.QueryParam("phone")
+
+	extractions := []uint64{}
+	var err error
+	if phone == "" {
+		query := "SELECT `no` FROM extractions WHERE `owner`=?"
+		err = app.db.Select(&extractions, query, userNo)
+	} else {
+		query := "SELECT `no` FROM extractions WHERE `owner`=? AND `phone`=?"
+		err = app.db.Select(&extractions, query, userNo, phone)
+	}
+
+	if err != nil {
+		return err
+	}
+
+	return c.JSON(http.StatusOK, extractions)
+}
+
 func (app *App) PostExtractions(c echo.Context) error {
 	userNo := c.Get("user").(*jwt.Token).Claims.(*AuthClaims).UserNo