feat: modularize ponder config with per-chain src/chains/ (COW-978) by lgahdl · Pull Request #67 · bleu/cow-programmatic-orders-api

lgahdl · 2026-05-28T13:53:43Z

Summary

Extract per-chain contract addresses and config into src/chains/, one file per chain (mainnet.ts, gnosis.ts, arbitrum.ts stub)
A central src/chains/index.ts exports ACTIVE_CHAINS: ChainConfig[]; ponder.config.ts becomes a pure derivation with no hardcoded addresses
Enabling or disabling a chain is a single commented/uncommented line in src/chains/index.ts

Changes

Added src/chains/types.ts — ChainConfig interface with all per-chain fields
Added src/chains/mainnet.ts, src/chains/gnosis.ts — full chain configs
Added src/chains/arbitrum.ts — placeholder with commented-out config (addresses not yet confirmed)
Added src/chains/index.ts — exports ACTIVE_CHAINS and re-exports ChainConfig
Refactored ponder.config.ts — all config derived via Object.fromEntries(ACTIVE_CHAINS.map(...)); imports CoWShedFactoryAbi and GPv2SettlementAbi directly
Updated src/data.ts — removed per-chain deployment objects; BLOCK_TIME_SECONDS, COMPOSABLE_COW_ADDRESS_BY_CHAIN_ID, AAVE_V3_ADAPTER_FACTORY_ADDRESSES, GPV2_SETTLEMENT_DEPLOYMENTS, and ORDERBOOK_API_URLS now derived from ACTIVE_CHAINS

How to Test

pnpm codegen — should complete without errors
pnpm typecheck — should pass
pnpm lint — should pass
Comment out gnosis in src/chains/index.ts and verify pnpm typecheck still passes (single-chain deploy works)

Breaking Changes

None — runtime behavior is identical. src/data.ts no longer exports COMPOSABLE_COW_DEPLOYMENTS, ComposableCowContract, COW_SHED_FACTORY_DEPLOYMENTS, CoWShedFactoryContract, GPv2SettlementContract, or FLASH_LOAN_ROUTER_ADDRESSES; the only consumers were ponder.config.ts (now using chains directly).

Related Issues

COW-978

… (COW-978) Extract per-chain addresses into src/chains/{mainnet,gnosis,arbitrum}.ts with a central ACTIVE_CHAINS index. ponder.config.ts now derives all config with no hardcoded addresses. Toggling a chain requires one line in src/chains/index.ts. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

linear-code · 2026-05-28T13:53:48Z

COW-978

yvesfracari

There are multiple mainnet and gnosis mentions on docs and etc that will be outdated once a new chain is added. Also, the chain ids supported should be imported from cow-sdk as Anxo said to us on the feedback, making missing chains be throw by typescript error. Let me know if you think that this should be addressed on another PR

yvesfracari · 2026-05-28T16:29:30Z

I think that we should add all current cow chains in this PR and just having somekind of filter to only run gnosis and mainnet.

yvesfracari · 2026-05-28T16:30:12Z

+  },
+  flashLoanRouter: "0x9da8B48441583a2b93e2eF8213aAD0EC0b392C69", // confirmed via ROUTER() on Gnosis AaveV3AdapterFactory
+  aaveV3AdapterFactory: "0xdeCc46a4b09162f5369c5c80383aaa9159bcf192", // verified on Gnosisscan
+  contractPollerInterval: 4, // ~20s — avoids wasteful RPC calls given 1,461+ generators


would derivate this from chain time

- Use SupportedChainId from @cowprotocol/cow-sdk for chainId typing in ChainConfig - Derive contractPollerInterval from blockTime via pollerInterval() helper (~20s target) - Add arbitrum, base, and sepolia chain config files (cowShedFactory/gpv2Settlement marked null until addresses are confirmed) - Export ALL_DEFINED_CHAINS for ORDERBOOK_API_URLS; ACTIVE_CHAINS stays mainnet+gnosis - Make cowShedFactory nullable in ChainConfig; filter in ponder.config.ts Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

jeffersonBastos

LGTM!

yvesfracari

In my understanding this PR should add all the cow deployed chains as well. However, there are multiple missing (BNB, Avalanche, etc)

yvesfracari · 2026-05-29T14:09:03Z

+  cowShedFactory: null, // TODO: confirm CoWShedFactory address on Base
+  gpv2Settlement: null, // TODO: enable once AaveV3AdapterFactory is confirmed on Base
+  flashLoanRouter: null, // TODO: confirm via ROUTER() on Base AaveV3AdapterFactory
+  aaveV3AdapterFactory: null, // TODO: verify on Basescan


In my understanding this should be done on this PR, right?

I'm addressing this on #76

yvesfracari · 2026-05-29T14:09:50Z

+  flashLoanRouter: null, // TODO: confirm via ROUTER() on Arbitrum AaveV3AdapterFactory
+  aaveV3AdapterFactory: null, // TODO: verify on Arbiscan
+  contractPollerInterval: pollerInterval(blockTime),
+  orderbookApiUrl: "https://api.cow.fi/arbitrum_one",


nitpick, would change it to orderbookApiPath with only arbitrum_one

…W-978) Every chain in cow-sdk's ALL_SUPPORTED_CHAIN_IDS now has a config file in src/chains/. New stubs (BNB, Polygon, Lens, Plasma, Avalanche, Ink, Linea) follow the same pattern as existing stubs — composableCow address is the known CREATE2 deployment; all other addresses are null with TODOs pointing to the relevant block explorer. None are active until addresses are confirmed (tracked in COW-986). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…der-config-per-chain-files-under-srcchains' into luizhatem/cow-986-support-all-cow-protocol-chain-ids-bnb-ink-linea-etc

…(COW-986) Add verified ComposableCoW deployment blocks where confirmed on-chain via cowprotocol/composable-cow networks.json cross-referenced with block explorers and public RPC nodes. Also verify orderbook API URLs against cow-sdk ORDER_BOOK_PROD_CONFIG source. Verified startBlocks: - Arbitrum (42161): 204751436 (networks.json + arbiscan) - Base (8453): 21794150 (basescan, 2024-10-31) - Sepolia (11155111): 5072748 (networks.json + sepolia.etherscan.io, 2024-01-12) - BNB (56): 48433175 (networks.json + bscscan.com, 2025-04-17) - Polygon (137): 70406888 (polygonscan.com, 2025-04-17) - Lens (232): 3516559 (networks.json + rpc.lens.xyz, 2025-09) - Plasma (9745): 4810535 (networks.json + rpc.plasma.to) - Avalanche (43114): 60434336 (snowscan.xyz, 2025-04-17) - Ink (57073): 34878187 (Blockscout API + rpc-gel.inkonchain.com) - Linea (59144): 25028474 (networks.json + lineascan.build) Verified orderbook API URLs (all return HTTP 200 from api.cow.fi): - bnb, polygon, plasma, avalanche, ink, linea — confirmed active - lens — NOT yet in cow-sdk ORDER_BOOK_PROD_CONFIG; api.cow.fi/lens returns 404 Also restore CHAIN_NAMES export in src/data.ts (removed during merge conflict resolution) — derived from ACTIVE_CHAINS.name instead of the old getChainInfo(). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…rbookApiUrl to orderbookApiPath (COW-978) - Remove contractPollerInterval field from ChainConfig; compute inline in ponder.config.ts via pollerInterval() - Rename orderbookApiUrl -> orderbookApiPath storing only the path suffix (e.g. "mainnet", "xdai") - Update src/data.ts to construct full URL from path: https://api.cow.fi/${c.orderbookApiPath} - Update all 12 chain files accordingly Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…978) Replace placeholder startBlocks (0 / rough estimates) with values verified from cowprotocol/composable-cow networks.json and block explorers. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…b-ink-linea-etc' into luizhatem/cow-978-modularize-ponder-config-per-chain-files-under-srcchains Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…2Settlement for 5 chains (COW-978) All addresses confirmed on-chain via ROUTER() call. Deployment blocks verified by binary search on each chain's RPC. Chains: arbitrum, base, avalanche, linea, polygon Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

…2Settlement for BNB and Plasma (COW-978) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

$yvesfracari$

yvesfracari reviewed May 28, 2026

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lgahdl changed the base branch from main to develop May 28, 2026 16:52

lgahdl requested a review from yvesfracari May 28, 2026 20:21

jeffersonBastos reviewed May 29, 2026

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$yvesfracari$

yvesfracari reviewed May 29, 2026

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lgahdl and others added 3 commits May 29, 2026 16:30

Merge remote-tracking branch 'origin/luizhatem/cow-978-modularize-pon…

5e4fdf6

…der-config-per-chain-files-under-srcchains' into luizhatem/cow-986-support-all-cow-protocol-chain-ids-bnb-ink-linea-etc

lgahdl mentioned this pull request May 29, 2026

feat: populate verified ComposableCoW deployment blocks for all 12 chains (COW-986) #76

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lgahdl and others added 2 commits May 29, 2026 17:45

chore: fill in verified ComposableCow startBlock for all chains (COW-…

6782071

…978) Replace placeholder startBlocks (0 / rough estimates) with values verified from cowprotocol/composable-cow networks.json and block explorers. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

jeffersonBastos approved these changes May 29, 2026

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lgahdl and others added 3 commits May 29, 2026 18:07

Merge branch 'luizhatem/cow-986-support-all-cow-protocol-chain-ids-bn…

9392acc

…b-ink-linea-etc' into luizhatem/cow-978-modularize-ponder-config-per-chain-files-under-srcchains Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

chore: fill in verified aaveV3AdapterFactory, flashLoanRouter and gpv…

0ad999f

…2Settlement for BNB and Plasma (COW-978) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lgahdl merged commit a26106b into develop May 29, 2026
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feat: modularize ponder config with per-chain src/chains/ (COW-978)#67

feat: modularize ponder config with per-chain src/chains/ (COW-978)#67
lgahdl merged 10 commits into
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luizhatem/cow-978-modularize-ponder-config-per-chain-files-under-srcchains

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lgahdl commented May 28, 2026

Summary

Changes

How to Test

Breaking Changes

Related Issues

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