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Guice and play and escaping DI hell · Part 4
A Provider class for the MongoDB client, a @Provides method for the database, and @Named qualifiers for two clocks of the same type, with the real errors Guice prints when I get it wrong.
Guice and play and escaping DI hell · Part 3
A MongoDB client as an eager singleton, closed by an ApplicationLifecycle stop hook. Why sbt run printed nothing until the first request, and why my tests built three clients.
Guice and play and escaping DI hell · Part 2
A test that could not pass forced my first trait into the graph. @ImplementedBy, a root Module, a test that builds the real Guice graph, and the error Guice prints when a binding is missing.
Guice and play and escaping DI hell · Part 1
At work I wire Play apps by hand with the cake pattern. In my own projects I switched a Play 3 template to Guice: one deleted config line, one @Inject(), and a timestamp that made me think Guice was broken.