Define which ParseServerOptions apply to startup methods

[dblythy]

New Feature / Enhancement Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.

Current Limitation

There are two different types of startup methods (considering const { Parse Server } = require('parse-server')):

1. new ParseServer() This returns an express middleware to be passed to an express app, designed to be compatible with existing web servers
2. ParseServer.start This creates a Parse Server instance with it's own new express app.

As such, certain Parse Server options (cluster, startLiveQueryServer) are only compatible with the 2nd startup method, as if a developer is looking to mount to an existing express app, they will have to configure the clustering of the process themselves.

Feature / Enhancement Description

This can create some confusion as it can be assumed all Parse Server options are relevant to new ParseServer()

Example Use Case

Alternatives / Workarounds

Leave as is

3rd Party References

Sidenote

new ParseServer() returns differently depending on whether it's imported from:

const ParseServer = require('ParseServer') // creates Parse Server instance

or

const { ParseServer } = require('ParseServer') // creates express middleware (used in example project)

Discussed here #8232 (comment)

[parse-github-assistant]

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[mtrezza]

Is this purely a docs issue?

[dblythy]

Yes, the ParseServerOptions specifically