UA Custom Configuration

User Application contracts may set their own configuration for block confirmation, send version, relayer, oracle, etc.
When a UA wishes to configure their own block confirmations both the outboundBlockConfirmations of the source and the inboundBlockConfirmations of the destination must be configured and match.
How to Configure
A User Application (UA) can use non-default protocol settings, and to do so it must implement the interface ILayerZeroUserApplicationConfig. The UA may then manually update its ApplicationConfig . See examples below as well as the CONFIG_TYPES. 
Set: Inbound Proof Library
let config = ethers.utils.defaultAbiCoder.encode( 
   ["uint16"],
   [inboundProofLibraryVersion]
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_INBOUND_PROOF_LIBRARY_VERSION,
   config
)
Set: Inbound Block Confirmations
let config = ethers.utils.defaultAbiCoder.encode(
   ["uint16"],
   [42]
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_INBOUND_BLOCK_CONFIRMATIONS,
   config
)
Set: Relayer
let config = ethers.utils.solidityPack(
   ["address"],
   [relayerAddr]
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_RELAYER,
   config 
)
Set: Outbound Proof Type/LibraryVersion
let config = ethers.utils.defaultAbiCoder.encode(
   ["uint16"],
   [outboundProofType]
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_OUTBOUND_PROOF_TYPE,
   config
)
Set: Outbound Block Confirmations
let config = ethers.utils.defaultAbiCoder.encode(
   ["uint16"],
   [17] // outbound block confirmations 
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_OUTBOUND_BLOCK_CONFIRMATIONS,
   config
)
Set: Oracle
Oracle settings are configured per channel pathway, meaning UAs who want to lock Oracle configs will need to call setConfig per chain pairing.
let config = ethers.utils.defaultAbiCoder.encode(
   ["address"],
   [oracleAddr]
)
await lzEndpoint.setConfig(
   0,
   dstChainId,
   CONFIG_TYPE_ORACLE,
   config
)
Config Types
CONFIG_TYPE_INBOUND_PROOF_LIBRARY_VERSION
1
CONFIG_TYPE_INBOUND_BLOCK_CONFIRMATIONS
2
CONFIG_TYPE_RELAYER
3
CONFIG_TYPE_OUTBOUND_PROOF_TYPE
4
CONFIG_TYPE_OUTBOUND_BLOCK_CONFIRMATIONS
5
CONFIG_TYPE_ORACLE
6

NonblockingLzApp

UA Configuration Lock

Last modified 10d ago

`CONFIG_TYPE_INBOUND_PROOF_LIBRARY_VERSION`	`1`
`CONFIG_TYPE_INBOUND_BLOCK_CONFIRMATIONS`	`2`
`CONFIG_TYPE_RELAYER`	`3`
`CONFIG_TYPE_OUTBOUND_PROOF_TYPE`	`4`
`CONFIG_TYPE_OUTBOUND_BLOCK_CONFIRMATIONS`	`5`
`CONFIG_TYPE_ORACLE`	`6`