package blog import ( "context" "net/http" "go.mongodb.org/mongo-driver/bson" ) type PortfolioProject struct { Title string `bson:"_id"` Repository string `bson:"repository"` Description string `bson:"description"` Languages []struct { Language string `bson:"language"` Dates string `bson:"dates"` } `bson:"language"` } func (b *BlogApp) Projects(languageFilter string) ([]PortfolioProject, error) { filter := bson.M{} if languageFilter != "" { filter["language.language"] = languageFilter } res, err := b.portfolioCol.Find(context.Background(), filter) if err != nil { return nil, err } var out []PortfolioProject err = res.All(context.Background(), &out) return out, err } func (b *BlogApp) reqPortfolio(w http.ResponseWriter, r *http.Request) { //TODO }