Using C-lightning RPC interface you can avoid specifying optional parameters, just by not specifying them. Using the console in Spark wallet shouldn't be different.

You can refer to a specific optional argument by its name while omitting the others by using the -k command line option of lightning-cli. So for the example your gave:

lightning-cli -k getroute id=024...a67 msatoshi=1000000sat riskfactor=10 exclude='[“564334x877x1/0”,“564195x1292x0/1”]'

I don't know if Spark provides a way to refer to options by their name. You can always just specify the default of the options as documented.

Using C-lightning RPC interface you can avoid specifying optional parameters, just by not specifying them. Using the console in Spark wallet shouldn't be different.

You can refer to a specific optional argument by its name while omitting the others by using the -k command line option of lightning-cli. So for the example your gave:

lightning-cli -k getroute id=024...a67 msatoshi=1000000sat riskfactor=10 exclude='["564334x877x1/0","564195x1292x0/1"]'

I don't know if Spark provides a way to refer to options by their name. You can always just specify the default of the options as documented.

Not sure about how Spark Wallet handles this. Using C-lightning RPC interface you can avoid specifying optional parameters, just by not specifying them.

For your usage question, please refer to the manual. It specifies that exclude must be a JSON array and even gives you an example:

[“564334x877x1/0”,“564195x1292x0/1”]

Using C-lightning RPC interface you can avoid specifying optional parameters, just by not specifying them. Using the console in Spark wallet shouldn't be different.

You can refer to a specific optional argument by its name while omitting the others by using the -k command line option of lightning-cli. So for the example your gave:

lightning-cli -k getroute id=024...a67 msatoshi=1000000sat riskfactor=10 exclude='[“564334x877x1/0”,“564195x1292x0/1”]'

I don't know if Spark provides a way to refer to options by their name. You can always just specify the default of the options as documented.