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0bec51e96a
stack-orchestrator/app/data/stacks/fixturenet-payments/demo.md
Nabarun Gogoi 0bec51e96a
Pay for queries from watcher to indexer mode Ponder apps in payments stack (#573) 
* Use ponder in watcher mode and indexer mode separately in payments stack

* Refactor config file and configure env variables for watcher mode

* Update demo.md for payments stack

* Handle review changes

* Setup config to pay for watcher to indexer GQL queries

* Fix config in stack for making payments in watcher ponder app

* Update demo for payment from watcher to indexer mode Ponder apps

* Use laconic-esm brannch for ponder

---------

Co-authored-by: Shreerang Kale <shreerangkale@gmail.com>
2023-10-12 14:16:44 +05:30

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Demo

Stack components:

  • ipld-eth-db database for statediffed data
  • Local geth + lighthouse blockchain "fixturenet" running in statediffing mode
  • ipld-eth-server which runs an ETH RPC API and a GQL server; serves data from ipld-eth-db
  • A go-nitro deployment acting as the Nitro node for ipld-eth-server
  • A modified reverse payment proxy server (based on the one from go-nitro) that proxies requests to ipld-eth-server's RPC endpoint; it talks to ipld-eth-server's Nitro node to accept and validate payments required for configured RPC requests
  • A MobyMask v3 watcher that pays the ipld-eth-server for ETH RPC requests
  • A MobyMask v3 app that pays the watcher for reads (GQL queries) and writes
  • An example ERC20 Ponder app that pays the ipld-eth-server for ETH RPC requests

Setup

  • On starting the stack, MobyMask watcher creates a payment channel with the ipld-eth-server's Nitro node. Check watcher logs and wait for the same:

    docker logs -f $(docker ps -aq --filter name="mobymask-watcher-server")

# Expected output:
# vulcanize:server Peer ID: 12D3KooWKLqLWU82VU7jmsmQMruRvZWhoBoVsf1UHchM5Nuq9ymY
# vulcanize:server Using chain URL http://fixturenet-eth-geth-1:8546 for Nitro node
# ...
# ts-nitro:util:nitro Ledger channel created with id 0x65703ccdfacab09ac35367bdbe6c5a337e7a6651aad526807607b1c59b28bc1e
# ...
# ts-nitro:util:nitro Virtual payment channel created with id 0x29ff1335d73391a50e8fde3e9b34f00c3d81c39ddc7f89187f44dd51df96140e
# vulcanize:server Starting server... +0ms

  • Keep the above command running to keep track of incoming payments and GQL requests from the MobyMask app

  • In another terminal, export the payment channel id to a variable:

    export WATCHER_UPSTREAM_PAYMENT_CHANNEL=<PAYMENT_CHANNEL_ID>

  • Check the payment channel status:

    docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"

# Expected output:
# {
#   ID: '0x8c0d17639bd2ba07dbcd248304a8f3c6c7276bfe25c2b87fe41f461e20f33f01',
#   Status: 'Open',
#   Balance: {
#     AssetAddress: '0x0000000000000000000000000000000000000000',
#     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
#     Payer: '0xbbb676f9cff8d242e9eac39d063848807d3d1d94',
#     PaidSoFar: 0n,
#     RemainingFunds: 1000000000n
#   }
# }

  • In another terminal, check the reverse payment proxy server's logs to keep track of incoming payments and RPC requests:

    docker logs -f $(docker ps -aq --filter name="nitro-reverse-payment-proxy")

  • MetaMask flask wallet setup for running the MobyMask app:

    • Get the geth node’s port mapped to host:

      docker port payments-fixturenet-eth-geth-1-1 8545

    • In MetaMask, add a custom network with the following settings:

      # Network name
Local fixturenet

# New RPC URL
http://127.0.0.1:<GETH_PORT>

# Chain ID
1212

# Currency symbol
ETH

    • Import a faucet account with the following private key:

      # Faucet PK
# 0x570b909da9669b2f35a0b1ac70b8358516d55ae1b5b3710e95e9a94395090597

    • Create an additional account for usage in the app; fund it from the faucet account

  • Get the generated root invite link for MobyMask from contract deployment container logs:

    docker logs -f $(docker ps -aq --filter name="mobymask-1")

# Expected output:
# ...
#   "key": "0x60e706fda4639fe0a8eb102cb0ce81231cf6e819f41cb4eadf72d865ea4c11ad"
# }
# http://127.0.0.1:3004/#/members?invitation=<INVITATION>

Run

MobyMask App

  • Open app in a browser (where MetaMask was setup) using the invite link

  • Run the following in browser console to enable logs:

    localStorage.debug = 'ts-nitro:*'
# Refresh the tab for taking effect

  • In the app’s debug panel, check that the peer gets connected to relay node and watcher peer

  • Open the NITRO tab in debug panel

    • Click on Connect Wallet to connect to MetaMask (make sure that the newly funded account is active)
    • Click on Connect Snap to install/connect snap

  • Perform DIRECT FUND with the preset amount and wait for the MetaMask confirmation prompt to appear; confirm the transaction and wait for a ledger channel to be created with the watcher

  • Perform VIRTUAL FUND with amount set to 10000 and wait for a payment channel to be created with the watcher

  • Perform phisher status check queries now that a payment channel is created:

    • Check the watcher logs for received payments along with the GQL queries:

      # Expected output:
# ...
# laconic:payments Serving a paid query for 0x86804299822212c070178B5135Ba6DdAcFC357D3
# vulcanize:resolver isPhisher 0x98ae4f9e9d01cc892adfe6871e1db0287039e0c183d3b5bb31d724228c114744 0x2B6AFbd4F479cE4101Df722cF4E05F941523EaD9 TWT:ash1
# vulcanize:indexer isPhisher: db miss, fetching from upstream server
# laconic:payments Making RPC call: eth_chainId
# laconic:payments Making RPC call: eth_getBlockByHash
# laconic:payments Making RPC call: eth_chainId
# laconic:payments Making RPC call: eth_getStorageAt

    • The watcher makes several ETH RPC requests to ipld-eth-server to fetch data required for satisfying the GQL request(s); check the payment proxy server logs for charged RPC requests (eth_getBlockByHash, eth_getBlockByNumber, eth_getStorageAt):

      # Expected output:
# ...
# {"time":"2023-10-06T06:46:52.769009314Z","level":"DEBUG","msg":"Serving RPC request","method":"eth_chainId"}
# {"time":"2023-10-06T06:46:52.773006426Z","level":"DEBUG","msg":"Serving RPC request","method":"eth_getBlockByNumber"}
# {"time":"2023-10-06T06:46:52.811142054Z","level":"DEBUG","msg":"Request cost","cost-per-byte":1,"response-length":1480,"cost":1480,"method":"eth_getBlockByNumber"}
# {"time":"2023-10-06T06:46:52.811418494Z","level":"DEBUG","msg":"sent message","address":"0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE","method":"receive_voucher"}
# {"time":"2023-10-06T06:46:52.812557482Z","level":"DEBUG","msg":"Received voucher","delta":5000}
# ...
# {"time":"2023-10-06T06:46:52.87525215Z","level":"DEBUG","msg":"Serving RPC request","method":"eth_getStorageAt"}
# {"time":"2023-10-06T06:46:52.882859654Z","level":"DEBUG","msg":"Request cost","cost-per-byte":1,"response-length":104,"cost":104,"method":"eth_getStorageAt"}
# {"time":"2023-10-06T06:46:52.882946485Z","level":"DEBUG","msg":"sent message","address":"0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE","method":"receive_voucher"}
# {"time":"2023-10-06T06:46:52.884012641Z","level":"DEBUG","msg":"Received voucher","delta":5000}
# {"time":"2023-10-06T06:46:52.884032961Z","level":"DEBUG","msg":"Destination request","url":"http://ipld-eth-server:8081/"}

  • Change the amount besides PAY button in debug panel to >=100 for phisher reports next

  • Perform a phisher report and check the watcher logs for received payments:

    # Expected output:
# ...
# vulcanize:libp2p-utils [6:50:2] Received a message on mobymask P2P network from peer: 12D3KooWRkxV9SX8uTUZYkbRjai4Fsn7yavB61J5TMnksixsabsP
# ts-nitro:engine {"msg":"Received message","_msg":{"to":"0xBBB676","from":"0x868042","payloadSummaries":[],"proposalSummaries":[],"payments":[{"amount":200,"channelId":"0x557153d729cf3323c0bdb40a36b245f98c2d4562933ba2182c9d61c5cfeda948"}],"rejectedObjectives":[]}}
# laconic:payments Received a payment voucher of 100 from 0x86804299822212c070178B5135Ba6DdAcFC357D3
# vulcanize:libp2p-utils Payment received for a mutation request from 0x86804299822212c070178B5135Ba6DdAcFC357D3
# vulcanize:libp2p-utils Transaction receipt for invoke message {
#   to: '0x2B6AFbd4F479cE4101Df722cF4E05F941523EaD9',
#   blockNumber: 232,
#   blockHash: '0x6a188722c102662ea48af3786fe9db0d4b6c7ab7b27473eb0e628cf95746a244',
#   transactionHash: '0x6521205db8a905b3222adc2b6855f9b2abc72580624d299bec2a35bcba173efa',
#   effectiveGasPrice: '1500000007',
#   gasUsed: '113355'
# }

  • Check the watcher - ipld-eth-server payment channel status after a few requests:

    docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $WATCHER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"

# Expected output ('PaidSoFar' should be non zero):
# {
#   ID: '0x8c0d17639bd2ba07dbcd248304a8f3c6c7276bfe25c2b87fe41f461e20f33f01',
#   Status: 'Open',
#   Balance: {
#     AssetAddress: '0x0000000000000000000000000000000000000000',
#     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
#     Payer: '0xbbb676f9cff8d242e9eac39d063848807d3d1d94',
#     PaidSoFar: 30000n,
#     RemainingFunds: 999970000n
#   }
# }

ERC20 Ponder App

  • Run the ponder app in indexer mode:

    docker exec -it payments-ponder-app-indexer-1 bash -c "DEBUG=laconic:payments pnpm start"

# Expected output:
# 08:00:28.701 INFO  payment    Nitro node setup with address 0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d
#   laconic:payments Starting voucher subscription... +0ms
# ...
# 09:58:54.288 INFO  payment    Creating ledger channel with nitro node 0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE
# ...
# 09:59:14.230 INFO  payment    Creating payment channel with nitro node 0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE
# ...
# 09:59:14.329 INFO  payment    Using payment channel 0x10f049519bc3f862e2b26e974be8666886228f30ea54aab06e2f23718afffab0

  • Export the payment channel id to a variable:

    export PONDER_UPSTREAM_PAYMENT_CHANNEL=<PAYMENT_CHANNEL_ID>

  • On starting the Ponder app in indexer mode, it creates a payment channel with the ipld-eth-server's Nitro node and then starts the historical sync service

  • The sync service makes several ETH RPC requests to the ipld-eth-server to fetch required data; check the payment proxy server logs for charged RPC requests (eth_getBlockByNumber, eth_getLogs)

    # Expected output:
# ...
# {"time":"2023-10-06T06:51:45.214478402Z","level":"DEBUG","msg":"Serving RPC request","method":"eth_getBlockByNumber"}
# {"time":"2023-10-06T06:51:45.22251171Z","level":"DEBUG","msg":"Request cost","cost-per-byte":1,"response-length":576,"cost":576,"method":"eth_getBlockByNumber"}
# {"time":"2023-10-06T06:51:45.222641963Z","level":"DEBUG","msg":"sent message","address":"0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE","method":"receive_voucher"}
# {"time":"2023-10-06T06:51:45.224042391Z","level":"DEBUG","msg":"Received voucher","delta":5000}
# {"time":"2023-10-06T06:51:45.224061411Z","level":"DEBUG","msg":"Destination request","url":"http://ipld-eth-server:8081/"}
# {"time":"2023-10-06T06:51:45.242064953Z","level":"DEBUG","msg":"Serving RPC request","method":"eth_getLogs"}
# {"time":"2023-10-06T06:51:45.249118517Z","level":"DEBUG","msg":"Request cost","cost-per-byte":1,"response-length":61,"cost":61,"method":"eth_getLogs"}
# {"time":"2023-10-06T06:51:45.249189892Z","level":"DEBUG","msg":"sent message","address":"0xAAA6628Ec44A8a742987EF3A114dDFE2D4F7aDCE","method":"receive_voucher"}
# {"time":"2023-10-06T06:51:45.249743149Z","level":"DEBUG","msg":"Received voucher","delta":5000}
# {"time":"2023-10-06T06:51:45.249760631Z","level":"DEBUG","msg":"Destination request","url":"http://ipld-eth-server:8081/"}
# ...

  • Check the ponder - ipld-eth-server payment channel status:

    docker exec payments-nitro-rpc-client-1 npm exec -c "nitro-rpc-client get-payment-channel $PONDER_UPSTREAM_PAYMENT_CHANNEL -h go-nitro -p 4005"

# Expected output ('PaidSoFar' is non zero):
# {
#   ID: '0x1178ac0f2a43e54a122216fa6afdd30333b590e49e50317a1f9274a591da0f96',
#   Status: 'Open',
#   Balance: {
#     AssetAddress: '0x0000000000000000000000000000000000000000',
#     Payee: '0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce',
#     Payer: '0x67d5b55604d1af90074fcb69b8c51838fff84f8d',
#     PaidSoFar: 215000n,
#     RemainingFunds: 999785000n
#   }
# }

  • In another terminal run the ponder app in watcher mode:

    docker exec -it payments-ponder-app-watcher-1 bash -c "DEBUG=laconic:payments pnpm start"

# Expected output:
# 11:23:22.057 DEBUG app        Started using config file: ponder.config.ts
# 08:02:12.548 INFO  payment    Nitro node setup with address 0x111A00868581f73AB42FEEF67D235Ca09ca1E8db
#   laconic:payments Starting voucher subscription... +0ms
# 08:02:17.417 INFO  payment    Creating ledger channel with nitro node 0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d ...
# 08:02:37.135 INFO  payment    Creating payment channel with nitro node 0x67D5b55604d1aF90074FcB69b8C51838FFF84f8d ...
# 08:02:37.313 INFO  payment    Using payment channel 0x4b8e67f6a6fcfe114fdd60b85f963344ece4c77d4eea3825688c74b45ff5509b
# ...
# 11:23:22.436 INFO  server     Started responding as healthy

  • Check the terminal in which indexer mode ponder is running. Logs of payment for eth_getLogs queries can be seen:

    # ...
# 08:02:37.763 DEBUG realtime   Finished processing new head block 89 (network=fixturenet)
#   laconic:payments Received a payment voucher of 50 from 0x111A00868581f73AB42FEEF67D235Ca09ca1E8db +444ms
#   laconic:payments Serving a paid query for 0x111A00868581f73AB42FEEF67D235Ca09ca1E8db +1ms
# 08:02:37.804 DEBUG payment    Verified payment for GQL queries getLogEvents
#   laconic:payments Received a payment voucher of 50 from 0x111A00868581f73AB42FEEF67D235Ca09ca1E8db +45ms
#   laconic:payments Serving a paid query for 0x111A00868581f73AB42FEEF67D235Ca09ca1E8db +0ms
# 08:02:37.849 DEBUG payment    Verified payment for GQL queries getLogEvents

Clean Up

  • In the MobyMask app, perform VIRTUAL DEFUND and DIRECT DEFUND (in order) for closing the payment channel created with watcher

  • Run the following in the browser console to delete the Nitro node's data:

    await clearNodeStorage()

  • Run the following in the browser console to clear data in local storage:

    localStorage.clear()

  • On a fresh restart, clear activity tab data in MetaMask for concerned accounts