Add possibility to set serverUrl via ElasticApmConfiguration

[ubaierbhat]

Add possiblity to add servicerUrl during ElasticApmAgent initilization. Application can have different servers based on enviorments, flavors etc.

[LikeTheSalad]

Hi @ubaierbhat - Thank you for your feedback.

I think you should be able to address this use case by passing a Connectivity object with your server endpoint during the ElasticApmAgent initialization like so:

import import co.elastic.apm.android.sdk.connectivity.Connectivity;
//...
String serverUrl = "https://...";
Connectivity myCustomConnectivity = Connectivity.simple(serverUrl); // there are other methods such as Connectivity.withApiKey and Connectivity.withSecretToken in case you need those extra parameters.
ElasticApmAgent.initialize(appContext, myCustomConnectivity);

I hope it helps for your case, you can find more info on currently available configurations in here.

[ubaierbhat]

Thank you. The Connectivity object did the job. It wasn't clear from the documentation. serverUrl is a required field in the Gradle build script. We have to provide a dummy URL there and then override it when initializing the agent. Maybe serverUrl can be made optional in Gradle and checked during runtime, not compile time?

[LikeTheSalad]

Good to know it worked! Thanks for your feedback, I believe it's okay to remove the validation in Gradle for the serverUrl as long as we specify in the docs that a runtime exception could happen if it's not set in either place. I've created this issue for it: #182 - I'll close this issue for now, though feel free to reopen it if needed.