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[Savings] Add services to list Flexible and Fixed products (#312)
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* [Savings] Add ListSavingsFixedAndActivityProductsService and ListSavingsFlexibleProductsService

* [Savings] add comments

* [Savings] add service PurchaseSavingsFlexibleProduct (to purchase a flexible product)

* [Savings] add service RedeemSavingsFlexibleProduct (to redeem a flexible product)
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@alphayax
alphayax committed Sep 27, 2021
1 parent c6f2976 commit 1c85553
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20 changes: 20 additions & 0 deletions v2/client.go
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Expand Up @@ -423,6 +423,26 @@ func (c *Client) NewGetAccountService() *GetAccountService {
return &GetAccountService{c: c}
}

// NewListSavingsFlexibleProductsService get flexible products list (Savings)
func (c *Client) NewListSavingsFlexibleProductsService() *ListSavingsFlexibleProductsService {
return &ListSavingsFlexibleProductsService{c: c}
}

// NewPurchaseSavingsFlexibleProductService purchase a flexible product (Savings)
func (c *Client) NewPurchaseSavingsFlexibleProductService() *PurchaseSavingsFlexibleProductService {
return &PurchaseSavingsFlexibleProductService{c: c}
}

// NewRedeemSavingsFlexibleProductService redeem a flexible product (Savings)
func (c *Client) NewRedeemSavingsFlexibleProductService() *RedeemSavingsFlexibleProductService {
return &RedeemSavingsFlexibleProductService{c: c}
}

// NewListSavingsFixedAndActivityProductsService get fixed and activity product list (Savings)
func (c *Client) NewListSavingsFixedAndActivityProductsService() *ListSavingsFixedAndActivityProductsService {
return &ListSavingsFixedAndActivityProductsService{c: c}
}

// NewGetAccountSnapshotService init getting account snapshot service
func (c *Client) NewGetAccountSnapshotService() *GetAccountSnapshotService {
return &GetAccountSnapshotService{c: c}
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296 changes: 296 additions & 0 deletions v2/savings_service.go
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@@ -0,0 +1,296 @@
package binance

import (
"context"
"encoding/json"
)

// ListSavingsFlexibleProductsService https://binance-docs.github.io/apidocs/spot/en/#get-flexible-product-list-user_data
type ListSavingsFlexibleProductsService struct {
c *Client
status string
featured string
current int64
size int64
}

// Status represent the product status ("ALL", "SUBSCRIBABLE", "UNSUBSCRIBABLE") - Default: "ALL"
func (s *ListSavingsFlexibleProductsService) Status(status string) *ListSavingsFlexibleProductsService {
s.status = status
return s
}

// Featured ("ALL", "TRUE") - Default: "ALL"
func (s *ListSavingsFlexibleProductsService) Featured(featured string) *ListSavingsFlexibleProductsService {
s.featured = featured
return s
}

// Current query page. Default: 1, Min: 1
func (s *ListSavingsFlexibleProductsService) Current(current int64) *ListSavingsFlexibleProductsService {
s.current = current
return s
}

// Size Default: 50, Max: 100
func (s *ListSavingsFlexibleProductsService) Size(size int64) *ListSavingsFlexibleProductsService {
s.size = size
return s
}

// Do send request
func (s *ListSavingsFlexibleProductsService) Do(ctx context.Context, opts ...RequestOption) ([]*SavingsFlexibleProduct, error) {
r := &request{
method: "GET",
endpoint: "/sapi/v1/lending/daily/product/list",
secType: secTypeSigned,
}
m := params{}
if s.status != "" {
m["status"] = s.status
}
if s.featured != "" {
m["featured"] = s.featured
}
if s.current != 0 {
m["current"] = s.current
}
if s.size != 0 {
m["size"] = s.size
}
r.setParams(m)
data, err := s.c.callAPI(ctx, r, opts...)
if err != nil {
return nil, err
}
var res []*SavingsFlexibleProduct
err = json.Unmarshal(data, &res)
if err != nil {
return nil, err
}
return res, nil
}

// SavingsFlexibleProduct define a flexible product (Savings)
type SavingsFlexibleProduct struct {
Asset string `json:"asset"`
AvgAnnualInterestRate string `json:"avgAnnualInterestRate"`
CanPurchase bool `json:"canPurchase"`
CanRedeem bool `json:"canRedeem"`
DailyInterestPerThousand string `json:"dailyInterestPerThousand"`
Featured bool `json:"featured"`
MinPurchaseAmount string `json:"minPurchaseAmount"`
ProductId string `json:"productId"`
PurchasedAmount string `json:"purchasedAmount"`
Status string `json:"status"`
UpLimit string `json:"upLimit"`
UpLimitPerUser string `json:"upLimitPerUser"`
}

// PurchaseSavingsFlexibleProductService https://binance-docs.github.io/apidocs/spot/en/#purchase-flexible-product-user_data
type PurchaseSavingsFlexibleProductService struct {
c *Client
productId string
amount float64
}

// ProductId represent the id of the flexible product to purchase
func (s *PurchaseSavingsFlexibleProductService) ProductId(productId string) *PurchaseSavingsFlexibleProductService {
s.productId = productId
return s
}

// Amount is the quantity of the product to purchase
func (s *PurchaseSavingsFlexibleProductService) Amount(amount float64) *PurchaseSavingsFlexibleProductService {
s.amount = amount
return s
}

// Do send request
func (s *PurchaseSavingsFlexibleProductService) Do(ctx context.Context, opts ...RequestOption) (uint64, error) {
r := &request{
method: "POST",
endpoint: "/sapi/v1/lending/daily/purchase",
secType: secTypeSigned,
}
m := params{
"productId": s.productId,
"amount": s.amount,
}
r.setParams(m)
data, err := s.c.callAPI(ctx, r, opts...)
if err != nil {
return 0, err
}

var res *PurchaseSavingsFlexibleProductResponse
if err = json.Unmarshal(data, &res); err != nil {
return 0, err
}

return res.PurchaseId, nil
}

type PurchaseSavingsFlexibleProductResponse struct {
PurchaseId uint64 `json:"purchaseId"`
}

// RedeemSavingsFlexibleProductService https://binance-docs.github.io/apidocs/spot/en/#redeem-flexible-product-user_data
type RedeemSavingsFlexibleProductService struct {
c *Client
productId string
amount float64
redeemType string
}

// ProductId represent the id of the flexible product to redeem
func (s *RedeemSavingsFlexibleProductService) ProductId(productId string) *RedeemSavingsFlexibleProductService {
s.productId = productId
return s
}

// Amount is the quantity of the product to redeem
func (s *RedeemSavingsFlexibleProductService) Amount(amount float64) *RedeemSavingsFlexibleProductService {
s.amount = amount
return s
}

// Type ("FAST", "NORMAL")
func (s *RedeemSavingsFlexibleProductService) Type(redeemType string) *RedeemSavingsFlexibleProductService {
s.redeemType = redeemType
return s
}

// Do send request
func (s *RedeemSavingsFlexibleProductService) Do(ctx context.Context, opts ...RequestOption) error {
r := &request{
method: "POST",
endpoint: "/sapi/v1/lending/daily/redeem",
secType: secTypeSigned,
}
m := params{
"productId": s.productId,
"amount": s.amount,
}
if s.redeemType != "" {
m["type"] = s.redeemType
}
r.setParams(m)
_, err := s.c.callAPI(ctx, r, opts...)

return err
}

// ListSavingsFixedAndActivityProductsService https://binance-docs.github.io/apidocs/spot/en/#get-fixed-and-activity-project-list-user_data
type ListSavingsFixedAndActivityProductsService struct {
c *Client
asset string
projectType string
status string
isSortAsc bool
sortBy string
current int64
size int64
}

// Asset desired asset
func (s *ListSavingsFixedAndActivityProductsService) Asset(asset string) *ListSavingsFixedAndActivityProductsService {
s.asset = asset
return s
}

// Type set project type ("ACTIVITY", "CUSTOMIZED_FIXED")
func (s *ListSavingsFixedAndActivityProductsService) Type(projectType string) *ListSavingsFixedAndActivityProductsService {
s.projectType = projectType
return s
}

// IsSortAsc default "true"
func (s *ListSavingsFixedAndActivityProductsService) IsSortAsc(isSortAsc bool) *ListSavingsFixedAndActivityProductsService {
s.isSortAsc = isSortAsc
return s
}

// Status ("ALL", "SUBSCRIBABLE", "UNSUBSCRIBABLE") - default "ALL"
func (s *ListSavingsFixedAndActivityProductsService) Status(status string) *ListSavingsFixedAndActivityProductsService {
s.status = status
return s
}

// SortBy ("START_TIME", "LOT_SIZE", "INTEREST_RATE", "DURATION") - default "START_TIME"
func (s *ListSavingsFixedAndActivityProductsService) SortBy(sortBy string) *ListSavingsFixedAndActivityProductsService {
s.sortBy = sortBy
return s
}

// Current Currently querying page. Start from 1. Default:1
func (s *ListSavingsFixedAndActivityProductsService) Current(current int64) *ListSavingsFixedAndActivityProductsService {
s.current = current
return s
}

// Size Default:10, Max:100
func (s *ListSavingsFixedAndActivityProductsService) Size(size int64) *ListSavingsFixedAndActivityProductsService {
s.size = size
return s
}

// Do send request
func (s *ListSavingsFixedAndActivityProductsService) Do(ctx context.Context, opts ...RequestOption) ([]*SavingsFixedProduct, error) {
r := &request{
method: "GET",
endpoint: "/sapi/v1/lending/project/list",
secType: secTypeSigned,
}
m := params{
"type": s.projectType,
}
if s.asset != "" {
m["asset"] = s.asset
}
if s.status != "" {
m["status"] = s.status
}
if s.isSortAsc != true {
m["isSortAsc"] = s.isSortAsc
}
if s.sortBy != "" {
m["sortBy"] = s.sortBy
}
if s.current != 1 {
m["current"] = s.current
}
if s.size != 10 {
m["size"] = s.size
}
r.setParams(m)
data, err := s.c.callAPI(ctx, r, opts...)
if err != nil {
return nil, err
}
var res []*SavingsFixedProduct
if err = json.Unmarshal(data, &res); err != nil {
return nil, err
}
return res, nil
}

// SavingsFixedProduct define a fixed product (Savings)
type SavingsFixedProduct struct {
Asset string `json:"asset"`
DisplayPriority int `json:"displayPriority"`
Duration int `json:"duration"`
InterestPerLot string `json:"interestPerLot"`
InterestRate string `json:"interestRate"`
LotSize string `json:"lotSize"`
LotsLowLimit int `json:"lotsLowLimit"`
LotsPurchased int `json:"lotsPurchased"`
LotsUpLimit int `json:"lotsUpLimit"`
MaxLotsPerUser int `json:"maxLotsPerUser"`
NeedKyc bool `json:"needKyc"`
ProjectId string `json:"projectId"`
ProjectName string `json:"projectName"`
Status string `json:"status"`
Type string `json:"type"`
WithAreaLimitation bool `json:"withAreaLimitation"`
}

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