I've seen a few examples of reflection around this topic, but I can't find anything that solves this issue. It feels a little convoluted, but the alternative is a massive amount of repetition so I thought I'd give it a try.
I have a function that returns a function (handler). The wrapping function passes in an instance of a struct. I need the inner function to create a slice of pointers to that struct type:
func createCollectionHandler(app *appSession, record interface{}, name string) func(res http.ResponseWriter, req *http.Request) {
return func(res http.ResponseWriter, req *http.Request) {
res.Header().Set("Content-Type", "application/json")
// This line needs to be dynamic:
var result []*Person
err := meddler.QueryAll(app.MysqlDB, &result, "select * from "+name)
if err != nil {
log.Fatal(err)
}
json, err := json.MarshalIndent(result, "", " ")
if err != nil {
log.Println(err)
}
res.Write([]byte(json))
return
}
}
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