parameters.md

On Config Parameters

We can set any config parameter using the config dictionary.

An Ocean instance will hold a config_dict that holds various config parameters. These parameters need to get set using the ExampleConfig class. This is set based on what's input to Ocean constructor:

1. dict input: Ocean({'METADATA_CACHE_URI':..}), in which case you have to build the web3 instance manually
2. use boilerplate from example config, which also sets the web3 instance to be used by each contract

Example

Here is an example for (1): dict input, filled from envvars

import os
from ocean_lib.ocean.ocean import Ocean
from ocean_lib.example_config import get_web3

network_url = "https://your-rpc.com"

d = {
   'METADATA_CACHE_URI': "https://v4.aquarius.oceanprotocol.com",
   'PROVIDER_URL' : "https://v4.provider.goerli.oceanprotocol.com",
   "web3_instance": get_web3(network_url)
}
ocean = Ocean(d)

Further details

For the most precise description of config parameter logic, see the Ocean() constructor implementation.