4.2Connector configuration

Individual Salesforce operations normally point to a reusable global configuration:

<salesforce:sfdc-config
    name="Salesforce_Config">
    ...
</salesforce:sfdc-config>

Then:

<salesforce:query
    config-ref="Salesforce_Config">

or:

<salesforce:upsert
    config-ref="Salesforce_Config">

Conceptually:

const salesforce =
    new SalesforceConnection(config);

salesforce.query(...);

salesforce.upsert(...);

You don't authenticate separately for every flow step.