Help, in vibe.d, how to get configure var of mongodb in heroku?

[MichaelBi]

On Friday, 13 May 2022 at 05:41:33 UTC, rikki cattermole wrote:
> On 13/05/2022 5:18 PM, MichaelBi wrote:
>>      i have code here:
>>          auto uri = environment.get("MONGODB_URI");
>>          MongoClient conn = connectMongoDB(uri);
>>          MongoDatabase eqpdb = conn.getDatabase("MbEqpHeroku");
>> 
>> the "MONGODB_URI" showed above already put into heroku's app 
>> config as the 'key' and there is a paired 'value'. so the uri 
>> is to extract the value which is to use for app to establish 
>> mongodb connection.
>> 
>> and above code with error msg here: Error: `getenv` cannot be 
>> interpreted at compile time, because it has no available 
>> source code
>
> That part of the code is probably fine.
>
> Basically you have to be careful that:
>
> auto uri = environment.get("MONGODB_URI");
>
> Isn't being executed during compilation.
>
> Stuff that typically cause this is anything that initializes a 
> variable.
>
> Globals:
>
> shared Foo foo = Foo(...);
>
> Class fields:
>
> class Foo {
> 	Bar bar = Bar(...);
> }

yes, then should be this?

struct Camera{
	@name("_id") BsonObjectID id; // represented as "_id" in the 
database
	string brand;
	string model;
}

the structure is mapping of database field structure. how to 
resolve?