No method in multimethod 'connection-details->spec'

Driver Development
1

Hi, I'm currently trying to implement a driver for connecting to databricks. I'm using as base the spark driver on metabase 0.42 and this project. I'm able to compile the project but when I try to configure the connection I get:
{:errors {:dbname "No method in multimethod 'connection-details->spec' for dispatch value: :sparksql-databricks"}}

This is how my multimethod looks:

(defmethod sql-jdbc.conn/connection-details->spec :sparksql-databricks
  [_ {:keys [host port db jdbc-flags], :as   opts}]
  (sql-jdbc.common/handle-additional-options
    (merge
      {:classname   "metabase.driver.FixedSparkDriver"
       :subprotocol "spark"
       :subname     (str "//" host ":" port "/" db jdbc-flags)}
      (dissoc opts :host :port :jdbc-flags))))

Any suggestions? I tried using metabase 0.41 and 0.42
Thanks in advance!

2

Hi @mmenjivar
You will need to upgrade the driver, so it can compile without Leining - there has been other changes too:
https://github.com/metabase/metabase/blob/master/docs/developers-guide/driver-changelog.md
There's a lot of things that can be learned from looking at other drivers (which are being updated).

3

Hi, thanks for the quick response, can you redirect me to documentation on what are the changes I need to make to upgrade the project? thanks!

4

@mmenjivar You would need to do the changes in the driver changelog. And have a look in Metabase x.41.x+ - How to build drivers?
Try searching this forum.