add fundingInfo api (#35)

Author: maxkaneco

v2/futures/client.go

@@ -546,6 +546,10 @@ func (c *Client) NewFundingRateService() *FundingRateService {
 	return &FundingRateService{c: c}
 }
 
+func (c *Client) NewFundingInfoService() *FundingInfoService {
+	return &FundingInfoService{c: c}
+}
+
 // NewListUserLiquidationOrdersService init list user's liquidation orders service
 func (c *Client) NewListUserLiquidationOrdersService() *ListUserLiquidationOrdersService {
 	return &ListUserLiquidationOrdersService{c: c}

v2/futures/mark_price.go

@@ -125,6 +125,36 @@ type FundingRate struct {
 	MarkPrice   string `json:"markPrice"`
 }
 
+type FundingInfoService struct {
+	c *Client
+}
+
+// Do send request
+func (s *FundingInfoService) Do(ctx context.Context, opts ...RequestOption) (res []*FundingInfo, err error) {
+	r := &request{
+		method:   http.MethodGet,
+		endpoint: "/fapi/v1/fundingInfo",
+		secType:  secTypeNone,
+	}
+	data, _, err := s.c.callAPI(ctx, r, opts...)
+	if err != nil {
+		return []*FundingInfo{}, err
+	}
+	res = make([]*FundingInfo, 0)
+	err = json.Unmarshal(data, &res)
+	if err != nil {
+		return []*FundingInfo{}, err
+	}
+	return res, nil
+}
+
+type FundingInfo struct {
+	Symbol                   string `json:"symbol"`
+	AdjustedFundingRateCap   string `json:"adjustedFundingRateCap"`
+	AdjustedFundingRateFloor string `json:"adjustedFundingRateFloor"`
+	FundingIntervalHours     int    `json:"fundingIntervalHours"`
+}
+
 // GetLeverageBracketService get funding rate
 type GetLeverageBracketService struct {
 	c      *Client