feat: add EIP-7702 self-sponsored and sponsored Type 4 transaction scripts#2533
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kyzooghost wants to merge 8 commits intomainfrom
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feat: add EIP-7702 self-sponsored and sponsored Type 4 transaction scripts#2533kyzooghost wants to merge 8 commits intomainfrom
kyzooghost wants to merge 8 commits intomainfrom
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- Rename sendType4Tx.ts to sendSelfSponsoredType4Tx.ts to clarify intent - Fix undefined method call (createAuthorization -> createAuthorization properly defined on class, consolidated from createAuthorizationForSelf) - Remove unused createAuthorizationForPrivateKey (not relevant for self-sponsored scenario) - Rename class and method to reflect self-sponsored semantics
Move reusable functions from self-sponsored script into contracts/scripts/utils.ts: requireEnv, checkDelegation, getAccountInfo, createAuthorization, estimateGasFees. Simplify sendSelfSponsoredType4Tx.ts from class-based to flat functions using the shared utilities.
New script where a separate sponsor wallet sends and pays for the transaction while the authority wallet signs the authorization. Env vars: SPONSOR_PRIVATE_KEY, AUTHORITY_PRIVATE_KEY, TARGET_ADDRESS (required), TO_ADDRESS and CALLDATA (optional, default to authority address and 0x respectively).
Destructure only maxFeePerGas and maxPriorityFeePerGas from estimateGasFees instead of spreading all fields. The Linea gas estimate returns a gasLimit (e.g. 21000) that was overwriting our explicit 500000n, causing "Intrinsic gas exceeds gas limit" for Type 4 transactions with authorization lists.
![cursor[bot]](https://avatars.githubusercontent.com/in/1210556?s=60&v=4){kind=small}
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2533 +/- ##
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- Coverage 56.94% 56.94% -0.01%
Complexity 1480 1480
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Files 444 445 +1
Lines 17807 17809 +2
Branches 1949 1949
============================================
Hits 10141 10141
- Misses 7049 7051 +2
Partials 617 617
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Summary
sendType4Tx.tstosendSelfSponsoredType4Tx.tswith explicit self-sponsored semanticssendSponsoredType4Tx.tsscript where a separate sponsor sends and pays while a different authority signs the authorizationrequireEnv,checkDelegation,getAccountInfo,createAuthorization,estimateGasFees) intocontracts/scripts/utils.tsgasLimitreturn value was overriding the explicit 500000n needed for Type 4 transactionsProblem
The original
sendType4Tx.tswas broken (called an undefined method) and only supported self-sponsored transactions. There was no script to test sponsored EIP-7702 transactions where the authority signer and the transaction sender are different wallets.Solution
Split into two explicit scripts with shared utilities:
sendSelfSponsoredType4Tx.ts): same wallet signs authorization and sends txsendSponsoredType4Tx.ts): configurable viaSPONSOR_PRIVATE_KEY,AUTHORITY_PRIVATE_KEY,TARGET_ADDRESS, optionalTO_ADDRESSandCALLDATARelated
None
Test Plan
tsc --noEmit)Note
Low Risk
Changes are limited to developer scripts and shared script utilities; main risk is breaking existing workflows that referenced the removed
sendType4Tx.tsor subtle fee-estimation behavior changes on Linea.Overview
Adds two explicit EIP-7702 Type 4 transaction scripts:
sendSelfSponsoredType4Tx.ts(same wallet authorizes and sends, using a +1 auth nonce offset) andsendSponsoredType4Tx.ts(separate authority signs authorization while a sponsor sends/pays, configurableTO_ADDRESS/CALLDATA).Replaces the old
sendType4Tx.tsimplementation and extracts common helpers intocontracts/scripts/utils.ts(requireEnv,checkDelegation,getAccountInfo,createAuthorization,estimateGasFees), including a Linea-aware fee estimator that drops the returnedgasLimitso it can’t override the scripts’ explicit500000ngas limit.Written by Cursor Bugbot for commit ae32bb1. This will update automatically on new commits. Configure here.