sahilpaudel
How to start Xandra as child process
I am trying to use Xandra for my Phoenix project for which I am connecting to Cassandra like
{:ok, conn} = Xandra.start_link([
nodes: ["localhost:9042"]
])
Every time I am suppose to run a query I need to start_link, Is there a way I can provide all connection details in config file and it runs once the app is started?
Thanks
Marked As Solved
whatyouhide
You can can read the configuration from the application environment manually:
# in config/config.exs (or in an environment-specific config file)
config :my_app, :my_xandra, options
and then:
# in my_app/application.ex
xandra_config = Application.fetch_env!(:my_app, :my_xandra)
children = [
# ...,
{Xandra, xandra_config}
]
Also Liked
whatyouhide
The nodes option requires a list of strings, but you are reading a single string from the system environment. Use nodes: [System.get_env("CASSANDRA_HOST")].
whatyouhide
You need to pass the name option to give a name to the Xadnra pool (such as name: MyXandra) and then you can use Xandra.execute or similar functions to execute queries. Refer to the docs for more information 
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