contentful-node-apps-toolkit
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    Variable NETWORK_ADDRESS_PATTERNConst

    NETWORK_ADDRESS_PATTERN: string = ...

    Pattern for a network address accepted in a Contentful Function or App Action's allowNetworks field: a domain, a wildcard domain, an IPv4 address, or an IPv6 address, each with an optional port.

    Exported as a pattern string rather than a RegExp so it can be embedded directly in a JSON Schema pattern keyword by consumers that validate with a schema engine instead of a predicate.