Try to implement autocomplete for payees

http/budgeting.go

@@ -60,6 +60,28 @@ func getDate(c *gin.Context) (time.Time, error) {
 	return getFirstOfMonth(year, month, time.Now().Location()), nil
 }
 
+func (h *Handler) autocompletePayee(c *gin.Context) {
+	budgetID := c.Param("budgetid")
+	budgetUUID, err := uuid.Parse(budgetID)
+	if err != nil {
+		c.AbortWithError(http.StatusBadRequest, fmt.Errorf("budgetid missing from URL"))
+		return
+	}
+
+	query := c.Request.URL.Query().Get("s")
+	searchParams := postgres.SearchPayeesParams{
+		BudgetID: budgetUUID,
+		Search:   query + "%",
+	}
+	payees, err := h.Service.SearchPayees(c.Request.Context(), searchParams)
+	if err != nil {
+		c.AbortWithError(http.StatusInternalServerError, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, payees)
+}
+
 func (h *Handler) budgeting(c *gin.Context) {
 	budgetID := c.Param("budgetid")
 	budgetUUID, err := uuid.Parse(budgetID)