feat: add Tron support (TRX + USDT on Tron)

[CumpsD]

Summary

Chainflip recently added native TRX (trx.tron) and USDT on Tron (usdt.tron). This wires both as swappable assets.

This app is a swap-only frontend over Chainflip — the user pastes a destination address; no key derivation/signing for the receiving chain. So adding Tron only requires declaring the assets, mapping to Chainflip IDs, validating pasted addresses, and wiring market data.

Changes

• constants/caip.ts — tronChainId, trxAssetId, usdtOnTronAssetId constants (+ namespace/reference map entries, trxAssetId in FEE_ASSET_IDS)
• constants/assets.ts — TRX + USDT-on-Tron entries in initialAssets (precision 6, tronscan explorer, Trust Wallet icons; USDT-Tron links to canonical USDT via relatedAssetKey for the network badge)
• queries/chainflip/assets.ts — map asset IDs to trx.tron / usdt.tron
• lib/validation.ts — Tron address validation via multicoin-address-validator (TRX)
• queries/marketData/index.ts — coingecko ids tron / tether

Asset modal, quote, and swap flows are chain-agnostic and pick up the new assets automatically.

CAIP identifiers

Asset	assetId
TRX	tron:0x2b6653dc/slip44:195
USDT (Tron)	tron:0x2b6653dc/trc20:TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t

Testing

• yarn type-check, yarn lint, yarn test (9/9) all pass
• Manual in-app verification (live quote, address validation, icons) still recommended before merge

Summary by CodeRabbit

Release Notes

• New Features
  • Added Tron asset support for TRX and USDT (TRC-20) across asset pricing and trading flows.
  • Enabled Tron-aware address validation for safer transaction handling.
• Tests
  • Added Vitest coverage for Tron address validation and Tron asset mapping conversions.
• Chores
  • Simplified the Vitest test pool/worker configuration.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 3ad1ee27-9215-4f23-af5c-57ec1c18593f

📥 Commits

Reviewing files that changed from the base of the PR and between 943d435 and dbd0821.

📒 Files selected for processing (5)

• src/constants/caip.ts
• src/lib/validation.test.ts
• src/lib/validation.ts
• src/queries/chainflip/assets.test.ts
• vitest.config.ts

💤 Files with no reviewable changes (1)

• vitest.config.ts

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📝 Walkthrough

Walkthrough

Tron network support is added across five files: new CAIP constants for the Tron chain and assets, TRX and USDT TRC-20 entries in the static asset list, Tron address validation logic, and mappings from the new asset IDs to Chainflip and CoinGecko identifiers.

Changes

Tron Asset Integration

Layer / File(s)	Summary
CAIP constants and asset definitions src/constants/caip.ts, src/constants/assets.ts	Exports tronChainId, trxAssetId, and usdtOnTronAssetId; registers TRX and USDT TRC-20 in initialAssets with explorer links and network metadata.
Address validation src/lib/validation.ts, src/lib/validation.test.ts	Exports isValidAddressSync; adds a tronChainId case using WAValidator.validate(..., 'TRX'); covers validation across EVM, Solana, Bitcoin, and Tron chains.
Chainflip asset integration src/queries/chainflip/assets.ts, src/queries/chainflip/assets.test.ts	Maps trxAssetId → trx.tron and usdtOnTronAssetId → usdt.tron; validates transformation with test case for Tron assets.
Market data asset integration src/queries/marketData/index.ts	Maps trxAssetId → CoinGecko tron and usdtOnTronAssetId → CoinGecko tether.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐇 Hop, hop, onto the Tron!
TRX and USDT carry on,
New chain constants, fresh and bright,
Validators check with all their might.
The rabbit stamps the block with glee —
Tron is here, for you and me! 🌐

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat: add Tron support (TRX + USDT on Tron)' directly and clearly summarizes the primary objective of the changeset: adding support for Tron blockchain with two specific assets.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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Project	Deployment	Actions	Updated (UTC)
og	Ready	Preview, Comment	Jun 22, 2026 9:18pm