README.md

Chainlink External Adapter for Layer 2 Sequencer Health Check

Adapter that checks the Layer 2 Sequencer status

Environment Variables

Required?	Name	Description	Options	Defaults to
	DELTA	Maximum time in milliseconds from last seen block to consider sequencer healthy		120000 (2 min)
	DELTA_BLOCKS	Maximum allowed number of blocks that Nodes can fall behind		6
	NETWORK_TIMEOUT_LIMIT	Maximum time in milliseconds to wait for a transaction receipt		5000 (5 secs)
	ARBITRUM_RPC_ENDPOINT	Arbitrum RPC Endpoint		https://arb1.arbitrum.io/rpc
	ARBITRUM_HEALTH_ENDPOINT	Arbitrum Health Endpoint
	OPTIMISM_RPC_ENDPOINT	Optimism RPC Endpoint		https://mainnet.optimism.io
	OPTIMISM_HEALTH_ENDPOINT	Optimism Health Endpoint		https://mainnet-sequencer.optimism.io/health

For the adapter to be useful on the desired network, at least one endpoint (RPC or HEALTH) needs to provided

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Input Parameters

Required?	Name	Description	Options	Defaults to
✅	network	Layer 2 Network to check	arbitrum or optimism

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Sample Input

{
  "id": "1",
  "data": {
    "network": "arbitrum"
  }
}

Sample Output

{
  "jobRunID": "278c97ffadb54a5bbb93cfec5f7b5503",
  "data": {
    "result": true,
    "isHealthy": true
  },
  "statusCode": 200
}