# Dev Tricks: Supercharging ETH_Call

By [lailina](https://paragraph.com/@starknetpt) · 2023-09-28

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In addition to Dr. Luo’s open-source contributions to Uniswap as outlined in our previous two articles (see links at bottom) we will also be periodically posting guides and resources for smart contract developers. This is part of our broader belief that the cryptosphere will benefit (all boats will rise) if there are more devs using cutting edge techniques to solve bleeding edge problems.

This article explores ways to optimize the use of Ethereum’s eth\_call JSON-RPC method, including leveraging Multicall for batched requests, using lens contracts for interdependent calls, taking advantage of ephemeral contracts, and overriding EVM states for complex simulations. By employing these techniques, dApp developers can create more efficient and cost-effective applications.

**To read the full article with detailed technical explanations 👇🏻.**

[**Supercharging \`eth\_call\`**](https://aperture-finance.notion.site/Supercharging-eth_call-e311ccf4912d4925914e031111ef451c?source=post_page-----c478c352c2d8--------------------------------)
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### [Introduction](https://aperture-finance.notion.site/Supercharging-eth_call-e311ccf4912d4925914e031111ef451c?source=post_page-----c478c352c2d8--------------------------------)

[https://aperture-finance.notion.site/Supercharging-eth\_call-e311ccf4912d4925914e031111ef451c?source=post\_page-----c478c352c2d8--------------------------------](https://aperture-finance.notion.site/Supercharging-eth_call-e311ccf4912d4925914e031111ef451c?source=post_page-----c478c352c2d8--------------------------------)

**Previous open-source articles:**

[**Open Sourcing Our Optimal UniV3 Swap: No More Leftover Tokens**](https://medium.com/@aperturefinance/open-sourcing-our-optimal-univ3-swap-no-more-leftover-tokens-db3e9eaf5d23?source=post_page-----c478c352c2d8--------------------------------)
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### [By Dr. Shuhui Luo, Core GigaBrain at Aperture Finance](https://medium.com/@aperturefinance/open-sourcing-our-optimal-univ3-swap-no-more-leftover-tokens-db3e9eaf5d23?source=post_page-----c478c352c2d8--------------------------------)

[https://medium.com/@aperturefinance/open-sourcing-our-optimal-univ3-swap-no-more-leftover-tokens-db3e9eaf5d23?source=post\_page-----c478c352c2d8--------------------------------](https://medium.com/@aperturefinance/open-sourcing-our-optimal-univ3-swap-no-more-leftover-tokens-db3e9eaf5d23?source=post_page-----c478c352c2d8--------------------------------)

[**Open Sourcing Our Optimized Uniswap V3 Libraries (30%+ gas savings)**](https://medium.com/@aperturefinance/open-sourcing-our-optimized-uniswap-v3-libraries-30-gas-savings-1ded16fcd751?source=post_page-----c478c352c2d8--------------------------------)
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### [Aperture Finance has open sourced optimized versions of Uniswap V3’s most useful libraries that provide gas savings of…](https://medium.com/@aperturefinance/open-sourcing-our-optimized-uniswap-v3-libraries-30-gas-savings-1ded16fcd751?source=post_page-----c478c352c2d8--------------------------------)

[https://medium.com/@aperturefinance/open-sourcing-our-optimized-uniswap-v3-libraries-30-gas-savings-1ded16fcd751?source=post\_page-----c478c352c2d8--------------------------------](https://medium.com/@aperturefinance/open-sourcing-our-optimized-uniswap-v3-libraries-30-gas-savings-1ded16fcd751?source=post_page-----c478c352c2d8--------------------------------)

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*Originally published on [lailina](https://paragraph.com/@starknetpt/dev-tricks-supercharging-eth-call)*