func suggestions(w rest.ResponseWriter, r *rest.Request) {
var req data.SuggestionReq
err := r.DecodeJsonPayload(&req)
if err != nil {
rest.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if req.FallbackLocale == "" {
req.FallbackLocale = data.Locale("en")
}
if req.Locales == nil {
rest.Error(w, "locales required", 400)
return
}
if len(req.Query) > maxQueryLen {
rest.Error(w, fmt.Sprintf("Max query length is %d", maxQueryLen), 400)
return
}
resp, err := glosbe.Suggest(req)
if err != nil {
rest.Error((w), err.Error(), 500)
return
}
w.WriteJson(resp)
}
// Suggest returns a slice of suggestions for a request.
// glosbe returns suggestions only for the source locale.
func Suggest(req data.SuggestionReq) (*[]data.Suggestion, error) {
resp, err := req.FromCache()
if err == nil {
return resp, nil
}
source, err := gtranslate.Detect(req)
if err != nil {
return nil, err
}
source = req.NormalizeLocale(source)
target := req.TargetLocale(source)
query, err := makeSuggestQuery(req.Query, source, target)
if err != nil {
return nil, err
}
rawData, err := httputils.Get(query)
if err != nil {
return nil, err
}
resp, err = parseSuggestResp(rawData, source)
if err != nil {
return nil, err
}
if cacheErr := req.SaveCache(resp); cacheErr != nil {
log.Println(cacheErr)
}
return resp, nil
}