How to imlement rocket_okapi along with diesel ??

[DilecPadovani]

I'm trying to implement swagger documentation using the rocket_okapi crate, instead of rocket_dbpools i want to use Diesel.
I'm stuck on a problem when using the rocket_contrib macro for database connection:

use rocket_contrib::databases::{database, diesel::PgConnection};

#[database("test_db")]
struct DbConn(PgConnection);

the error I'm receiving is:

error[E0432]: unresolved import `rocket`
  --> src/main.rs:29:1
   |
29 | #[database("test_db")]
   | ^^^^^^^^^^^^^^^^^^^^^^
   | |
   | no `Outcome` in the root
   | help: a similar name exists in the module: `outcome`
   |
   = note: this error originates in the attribute macro `database` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0433]: failed to resolve: could not find `logger` in `rocket`
  --> src/main.rs:29:1
   |
29 | #[database("test_db")]
   | ^^^^^^^^^^^^^^^^^^^^^^ could not find `logger` in `rocket`
   |
   = note: this error originates in the attribute macro `database` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0107]: this trait takes 1 lifetime argument but 2 lifetime arguments were supplied
   --> src/main.rs:29:1
    |
29  | #[database("test_db")]
    | ^^^^^^^^^^^^^^^^^^^^^^
    | |
    | expected 1 lifetime argument
    | help: remove this lifetime argument
    |
note: trait defined here, with 1 lifetime parameter: `'r`
   --> /home/dilec/.cargo/registry/src/github.com-1ecc6299db9ec823/rocket-0.5.0-rc.2/src/request/from_request.rs:379:11
    |
379 | pub trait FromRequest<'r>: Sized {
    |           ^^^^^^^^^^^ --
    = note: this error originates in the attribute macro `database` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0107]: missing generics for struct `rocket::Rocket`
   --> src/main.rs:29:1
    |
29  | #[database("test_db")]
    | ^^^^^^^^^^^^^^^^^^^^^^ expected 1 generic argument
    |
note: struct defined here, with 1 generic parameter: `P`
   --> /home/dilec/.cargo/registry/src/github.com-1ecc6299db9ec823/rocket-0.5.0-rc.2/src/rocket.rs:137:12
    |
137 | pub struct Rocket<P: Phase>(pub(crate) P::State);
    |            ^^^^^^ -
    = note: this error originates in the attribute macro `database` (in Nightly builds, run with -Z macro-backtrace for more info)
help: add missing generic argument
    |
29  | Rocket<P>
    |

Some errors have detailed explanations: E0107, E0432, E0433.
For more information about an error, try `rustc --explain E0107`.
error: could not compile `rocket_diesel_demo` due to 4 previous errors

Can the problem be that in rocket exist an enum called outcome and rocket_contrib is instead looking for Outcome?

[the10thWiz]

rocket_contrib has been removed in 0.5. I'm not familiar with older versions of Rocket, but I suspect Rocket exposed the Outcome enum in the root, but in 0.5 it's in the outcome module.

If you want to use Diesel with rocket 0.5, you should be using the rocket_sync_db_pools package instead.