76 lines
2.5 KiB
Go
76 lines
2.5 KiB
Go
package http
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import (
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"context"
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"net/http"
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"strconv"
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"strings"
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"hyapp/pkg/appcode"
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"hyapp/services/gateway-service/internal/appconfig"
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)
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// appConfigReader 是 gateway 对后台 App 配置的只读依赖。
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type appConfigReader interface {
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ListH5Links(ctx context.Context) ([]appconfig.H5Link, error)
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ListBanners(ctx context.Context, query appconfig.BannerQuery) ([]appconfig.Banner, error)
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}
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// listH5Links 返回后台 APP配置/H5配置 中维护的 H5 入口地址。
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func (h *Handler) listH5Links(writer http.ResponseWriter, request *http.Request) {
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if h.appConfigReader == nil {
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// H5 地址来自后台配置表；未注入 reader 时不能返回空假数据。
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writeError(writer, request, http.StatusBadGateway, codeUpstreamError, "upstream service error")
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return
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}
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items, err := h.appConfigReader.ListH5Links(request.Context())
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if err != nil {
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// 配置读取失败属于服务端依赖异常，客户端只需要根据 request_id 排查。
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writeError(writer, request, http.StatusBadGateway, codeUpstreamError, "upstream service error")
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return
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}
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writeOK(writer, request, map[string]any{"items": items, "total": len(items)})
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}
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// listAppBanners 返回后台 APP配置/BANNER配置 中维护的首页 banner。
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func (h *Handler) listAppBanners(writer http.ResponseWriter, request *http.Request) {
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if h.appConfigReader == nil {
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writeError(writer, request, http.StatusBadGateway, codeUpstreamError, "upstream service error")
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return
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}
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items, err := h.appConfigReader.ListBanners(request.Context(), appconfig.BannerQuery{
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AppCode: appcode.FromContext(request.Context()),
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Platform: firstQueryOrHeader(request, "platform", "X-App-Platform", "X-Platform"),
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RegionID: optionalInt64Query(request, "region_id"),
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Country: firstQueryOrHeader(request, "country", "X-Country-Code", "X-App-Country"),
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})
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if err != nil {
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writeError(writer, request, http.StatusBadGateway, codeUpstreamError, "upstream service error")
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return
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}
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writeOK(writer, request, map[string]any{"items": items, "total": len(items)})
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}
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func firstQueryOrHeader(request *http.Request, queryKey string, headerNames ...string) string {
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if value := strings.TrimSpace(request.URL.Query().Get(queryKey)); value != "" {
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return value
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}
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return firstHeader(request, headerNames...)
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}
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func optionalInt64Query(request *http.Request, key string) int64 {
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value := strings.TrimSpace(request.URL.Query().Get(key))
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if value == "" {
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return 0
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}
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parsed, err := strconv.ParseInt(value, 10, 64)
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if err != nil || parsed < 0 {
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return 0
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}
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return parsed
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}
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