Oh I love this! Not too verbose but still understandable, clean, and easy
to add stuff. I didn't even think of using a method as a handler.
Absolutely gonna go for this. Thanks!
Le lundi 23 septembre 2019 18:35:06 UTC+2, Abhinav Gupta a écrit :
>
> You can place the dependencies into a struct and use a bound method on
> that as your handler. So you build a struct that will hold
> application-scoped objects like Redis client, content.Updater, etc.
>
> package contact
>
> type Handler struct {
> Redis *redis.Client
> Updater *content.Updater
> Mapper *mapping.Updater
> }
>
> func (h *Handler) Endpoint1(w http.ResponseWriter, r *http.Request) {
> // ...
> }
>
> Then build the Handler when you’re setting up the router (presumably in
> main() or nearby) and register it against the router as usual.
>
> handler := contact.Handler{
> Redis: config.GetRedisDb(),
> Updater: contents.GetUpdater(),
> Mapper: mapping.GetUpdater(),
> }
>
> myRouter.Handle("/endpoint1/", http.HandlerFunc(h.Endpoint1)).Methods("POST",
> "OPTIONS")
> // or
> myRouter.HandleFunc("/endpoint1/", h.Endpoint1).Methods("POST", "OPTIONS")
>
>
>
> On Mon, Sep 23, 2019 at 2:37 AM Nathanael Curin <n.c...@capitaldata.fr
> <javascript:>> wrote:
>
>> I'm avoiding context.WithValue since I feel the objects I'm dealing with
>> are too "powerful" (i.e. not simple Values). For a read, a 2016 article on
>> this : https://peter.bourgon.org/blog/2016/07/11/context.html
>>
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__peter.bourgon.org_blog_2016_07_11_context.html&d=DwMFaQ&c=r2dcLCtU9q6n0vrtnDw9vg&r=1l8pq-0AmiqF9VqB_zc2sA&m=NI61KpC9jRpLlUlKWVRDZmipntercznF0NBSCnIuTxo&s=pE-cXfAKqzEre0LV5lcGQmX_oGtu8kIyJyU7M14ZwWs&e=>
>> I remember reading through another article saying the usage of WithValue
>> is kind of risky when time goes on, since it's just a magical interface{}
>> store. Performance-wise I'm not sure though.
>>
>> Though, you're right, that'd be another way to do it. Waiting for people
>> to chime in with their ideas too (hopefully!) :)
>>
>>
>> Le lundi 23 septembre 2019 11:20:52 UTC+2, Andrew Pillar a écrit :
>>>
>>> Why don't you use context.WithValue(r.Context(), <key>, <value>) for
>>> passing
>>> the injected values you want to your HTTP handlers. Then defer the logic
>>> for
>>> retrieving whatever you want for that handler to a middleware function.
>>>
>> --
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>>
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_msgid_golang-2Dnuts_c23761e8-2D1287-2D4758-2D8303-2Db39db8cf22f0-2540googlegroups.com-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dfooter&d=DwMFaQ&c=r2dcLCtU9q6n0vrtnDw9vg&r=1l8pq-0AmiqF9VqB_zc2sA&m=NI61KpC9jRpLlUlKWVRDZmipntercznF0NBSCnIuTxo&s=ZNX_GIIPz98YRMi2pEBylgj0avplFYR0Sm9gopwCNeM&e=>
>> .
>>
>
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