Intro to TOML Config Files
To configure the
holochain Conductor, a configuration file format called TOML is used. It stands for "Tom's Obvious Minimal Language" and was created by Tom Preston-Werner, one of the original founders of GitHub. The documentation on GitHub for it is very good.
A table is actually a collection of key/value pairs, and it looks like this:
[table-1] key1 = "some string" key2 = 123
An array of tables looks like this:
[[products]] name = "Hammer" sku = 738594937 [[products]] name = "Nail" sku = 284758393 color = "gray"
This represents two "product" items in an array.
In the following articles, how to configure the various properties of the
holochain Conductor using these will be expanded on. First, knowing how to reference the configuration file for use by
holochain will be covered below.
holochain Config Files
holochain requires a configuration file to run, which must exist in the default location, or be provided as an explicit argument.
holochain will return an error if neither is given. The default location for the configuration file is in a subdirectory of the HOME directory on a device, at the path:
# Unix (Mac & Linux) $HOME/.holochain/conductor/conductor-config.toml # Windows %HOME%\.holochain\conductor\conductor-config.toml
holochain in a terminal, a path to a configuration file can be given. This can be done with the following option:
or for short
This could look like:
holochain -c ./conductor-config.toml
The holochain-nodejs Conductor also accepts the same TOML based configuration.
To jump ahead into what these configuration files can look like, you can check out this folder on GitHub which has a number of examples. Otherwise, read on to understand each part.
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