dw-sdk/bid-consign.go

package dw_sdk

import (
	"fmt"

	"github.com/bytedance/sonic"
	"github.com/gofiber/fiber/v3/client"
	"github.com/pkg/errors"
	"github.com/valyala/fasthttp/fasthttpproxy"

	"time"
)

//https://open.dewu.com/#/api/body?apiId=42&id=3&title=%E5%87%BA%E4%BB%B7%E6%9C%8D%E5%8A%A1API

type BidClient interface {
	LowestPrice(skuId int) (*PublicResponse[LowestPriceResponse], error)
}

type ConsignBidClientImpl struct {
	cli     *client.Client
	cfg     PublicConfig
	baseUrl string
}

func NewConsignBidClient(cfg Config) BidClient {
	baseUrl := GetUrl(cfg.Public.Env)
	cli := client.New().SetJSONMarshal(func(v any) ([]byte, error) {
		return sonic.Marshal(v)
	}).SetJSONUnmarshal(func(data []byte, v any) error {
		return sonic.Unmarshal(data, v)
	}).AddRequestHook(func(c *client.Client, request *client.Request) error {
		request.SetURL(baseUrl + request.URL())
		return nil
	})

	if cfg.Proxy != nil {
		cli.SetDial(fasthttpproxy.FasthttpHTTPDialer(fmt.Sprintf("%s:%s@%s:%s", cfg.Proxy.User, cfg.Proxy.Pass, cfg.Proxy.Host, cfg.Proxy.Port)))
	}
	return &ConsignBidClientImpl{
		cli:     cli,
		cfg:     cfg.Public,
		baseUrl: baseUrl,
	}
}

// 获取平台sku最低价【闪电直发】
const FastLowestPriceUrl = "/dop/api/v1/consign/bidding/lowest_price"

type ConsignLowestPriceReq struct {
	PublicParams
	SkuId int `json:"sku_id" url:"sku_id"`
}

type LowestPriceResponse struct {
	SkuId int               `json:"sku_id"`
	Items []LowestPriceItem `json:"items"`
}

type LowestPriceItem struct {
	LowestPrice int         `json:"lowest_price"`
	BiddingType BiddingType `json:"bidding_type"`
}

func (a *ConsignBidClientImpl) LowestPrice(skuId int) (*PublicResponse[LowestPriceResponse], error) {
	if skuId == 0 {
		return nil, Err_Params_None
	}
	data := ConsignLowestPriceReq{
		PublicParams: PublicParams{
			AppKey:    a.cfg.Key,
			Timestamp: time.Now().UnixMilli(),
		},
		SkuId: skuId,
	}

	Sign(&data, a.cfg.Secret)

	r := a.cli.R()
	defer client.ReleaseRequest(r)

	response, err := r.SetJSON(data).Post(FastLowestPriceUrl)
	if err != nil {
		return nil, errors.Wrapf(Err_Request_Err, "consign/bidding/lowest_price err:%v", err)
	}
	defer client.ReleaseResponse(response)
	var resp PublicResponse[LowestPriceResponse]
	if err = response.JSON(&resp); err != nil {
		return nil, errors.Wrapf(Err_JSON_UNMarshal, "consign/bidding/lowest_price err:%v", err)
	}
	return &resp, nil
}