add the points_count field to the rates/chart method

Author: zakhar-petukhov

api/openapi.json

@@ -8717,6 +8717,18 @@
        "format": "int64",
        "type": "integer"
       }
+     },
+     {
+      "in": "query",
+      "name": "points_count",
+      "required": false,
+      "schema": {
+       "default": 200,
+       "format": "int",
+       "maximum": 200,
+       "minimum": 0,
+       "type": "integer"
+      }
      }
     ],
     "responses": {

api/openapi.yml

@@ -1698,6 +1698,15 @@ paths:
             type: integer
             format: int64
             example: 1668436763
+        - name: points_count
+          in: query
+          required: false
+          schema:
+            type: integer
+            format: int
+            maximum: 200
+            minimum: 0
+            default: 200
       responses:
         '200':
           description: token chart

pkg/api/interfaces.go

@@ -157,7 +157,7 @@ type addressBook interface {
 
 type ratesSource interface {
 	GetRates(date int64) (map[string]float64, error)
-	GetRatesChart(token string, currency string, startDate *int64, endDate *int64) ([][]any, error)
+	GetRatesChart(token string, currency string, pointsCount int, startDate *int64, endDate *int64) ([][]any, error)
 	GetMarketsTonPrice() []rates.Market
 }
 

pkg/api/rates_handlers.go

@@ -37,7 +37,15 @@ func (h *Handler) GetChartRates(ctx context.Context, params oas.GetChartRatesPar
 	if params.EndDate.Set {
 		endDate = &params.EndDate.Value
 	}
-	charts, err := h.ratesSource.GetRatesChart(token, params.Currency.Value, startDate, endDate)
+	var defaultPointsCount = 200
+	if params.PointsCount.Set {
+		if params.PointsCount.Value > defaultPointsCount {
+			return nil, toError(http.StatusBadRequest, fmt.Errorf("max points: %v", defaultPointsCount))
+		} else {
+			defaultPointsCount = params.PointsCount.Value
+		}
+	}
+	charts, err := h.ratesSource.GetRatesChart(token, params.Currency.Value, defaultPointsCount, startDate, endDate)
 	if err != nil {
 		return nil, toError(http.StatusInternalServerError, err)
 	}

pkg/oas/oas_handlers_gen.go

@@ -9,7 +9,7 @@ import (
 
 type ratesSource interface {
 	GetRates(date int64) (map[string]float64, error)
-	GetRatesChart(token string, currency string, startDate *int64, endDate *int64) ([][]any, error)
+	GetRatesChart(token string, currency string, pointsCount int, startDate *int64, endDate *int64) ([][]any, error)
 	GetMarketsTonPrice() []Market
 }
 
@@ -103,8 +103,8 @@ func (c *calculator) GetRates(date int64) (map[string]float64, error) {
 	return nil, fmt.Errorf("invalid period")
 }
 
-func (c *calculator) GetRatesChart(token string, currency string, startDate *int64, endDate *int64) ([][]any, error) {
-	return c.source.GetRatesChart(token, currency, startDate, endDate)
+func (c *calculator) GetRatesChart(token string, currency string, pointsCount int, startDate *int64, endDate *int64) ([][]any, error) {
+	return c.source.GetRatesChart(token, currency, pointsCount, startDate, endDate)
 }
 
 func (c *calculator) GetMarketsTonPrice() []Market {
@@ -123,6 +123,6 @@ func (m Mock) GetMarketsTonPrice() []Market {
 	return m.GetCurrentMarketsTonPrice()
 }
 
-func (m Mock) GetRatesChart(token string, currency string, startDate *int64, endDate *int64) ([][]any, error) {
+func (m Mock) GetRatesChart(token string, currency string, pointsCount int, startDate *int64, endDate *int64) ([][]any, error) {
 	return [][]any{}, nil
 }