Update mirror node endpoints

[SimiHunjan]

Problem

The SDK currently has the following endpoints for users to subscribe to Hedera Consensus Service topics:

• hcs.previewnet.mirrornode.hedera.com:5600
• hcs.testnet.mirrornode.hedera.com:5600
• hcs.mainnet.mirrornode.hedera.com:5600

The above endpoints will be deprecated and need to be replaced with the following for each mirror node environment:

• previewnet.mirrornode.hedera.com:443
• testnet.mirrornode.hedera.com:443
• mainnet-public.mirrornode.hedera.com:443

When the hcs.previewnet.mirrornode.hedera.com:5600 endpoints are deprecated, users will no longer be able to subscribe to topics. The recommendation is to update to the the version that supports the new endpoints so your application can avoid disruption. The deprecation period for the hcs.env.mirrornode.hedera.com:5600 endpoint is 6 months.

Solution

Update the SDK to support the new mirror node endpoints.

Alternatives

No response

[bamzedev]

The new endpoint does not serve on 5600. This will require more than just changing the URL's. There is SetTransportSecurity to take into account.