# 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: ```bash 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: ```bash export WATCHER_UPSTREAM_PAYMENT_CHANNEL= ``` * Check the payment channel status: ```bash 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: ```bash 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: ```bash docker port payments-fixturenet-eth-geth-1-1 8545 ``` * In MetaMask, add a custom network with the following settings: ```bash # Network name Local fixturenet # New RPC URL http://127.0.0.1: # Chain ID 1212 # Currency symbol ETH ``` * Import a faucet account with the following private key: ```bash # 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: ```bash docker logs -f $(docker ps -aq --filter name="mobymask-1") # Expected output: # ... # "key": "0x60e706fda4639fe0a8eb102cb0ce81231cf6e819f41cb4eadf72d865ea4c11ad" # } # http://127.0.0.1:3004/#/members?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: ```bash 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: ```bash # 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`): ```bash # 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: ```bash # 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: ```bash 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: ```bash 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: ```bash export PONDER_UPSTREAM_PAYMENT_CHANNEL= ``` * 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`) ```bash # 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: ```bash 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: ```bash 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: ```bash # ... # 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: ```bash await clearNodeStorage() ``` * Run the following in the browser console to clear data in local storage: ```bash localStorage.clear() ``` * On a fresh restart, clear activity tab data in MetaMask for concerned accounts