# Developers

**URL:** https://forum.aurora.dev/c/dev-and-engineering-topics/13.md

[Latest](https://forum.aurora.dev/latest.md) · [Categories](https://forum.aurora.dev/categories.md) · [Tags](https://forum.aurora.dev/tags.md)

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## [About the Developers category](https://forum.aurora.dev/t/about-the-developers-category/335)

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**Author:** [@Aliaksei](https://forum.aurora.dev/u/Aliaksei)\
**Replies:** 0

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Ask your dev questions, chat about Aurora tech.

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## [Aurorascan does not seem to provide all the data](https://forum.aurora.dev/t/aurorascan-does-not-seem-to-provide-all-the-data/654)

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**Author:** [@daniel](https://forum.aurora.dev/u/daniel)\
**Replies:** 0\
**Last updated:** [August 2, 2022, 1:13pm UTC](https://forum.aurora.dev/t/aurorascan-does-not-seem-to-provide-all-the-data/654 "2022-08-02T13:13:44Z")

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Hello, I’m trying to integrate this API Aurora Developers APIs | Aurora, but I notice that some transactions are missing. Indeed, for this random public key 0x65436F5Ec7c83824D39d9EfE5fDBD1308ce7Ac0b if we look at the tr…

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## [Aurora engine integration with ethers.js or web3.js](https://forum.aurora.dev/t/aurora-engine-integration-with-ethers-js-or-web3-js/432)

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**Author:** [@Blaze-K8](https://forum.aurora.dev/u/Blaze-K8)\
**Replies:** 2\
**Last updated:** [July 18, 2022, 3:08pm UTC](https://forum.aurora.dev/t/aurora-engine-integration-with-ethers-js-or-web3-js/432 "2022-07-18T15:08:50Z")

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Hi I want to use ethers.js or web3.js to directly interact with the aurora-engine, instead of deploying contracts with bytecode. Is there a way to achieve this? If yes, could you please provide docs or resources that …

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## [Passing constructor args when deploying code with bytecode](https://forum.aurora.dev/t/passing-constructor-args-when-deploying-code-with-bytecode/433)

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**Author:** [@Blaze-K8](https://forum.aurora.dev/u/Blaze-K8)\
**Replies:** 0\
**Last updated:** [July 18, 2022, 12:40pm UTC](https://forum.aurora.dev/t/passing-constructor-args-when-deploying-code-with-bytecode/433 "2022-07-18T12:40:19Z")

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Hi I have been deploying contracts using bytecode in aurora engine. Passing function arguments in hex values works for me, but I have been unable to do the same if a contract takes constructor arguments. Could someone…

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## [Issues with deploying multiple smart contracts through hardhat on testnet](https://forum.aurora.dev/t/issues-with-deploying-multiple-smart-contracts-through-hardhat-on-testnet/331)

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**Author:** [@jpthewavy](https://forum.aurora.dev/u/jpthewavy)\
**Replies:** 4\
**Last updated:** [July 16, 2022, 9:25am UTC](https://forum.aurora.dev/t/issues-with-deploying-multiple-smart-contracts-through-hardhat-on-testnet/331 "2022-07-16T09:25:36Z")

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Hi guys, I am trying to deploy smart contracts on Aurora testnet chain through hardhat. It works slow but okay to deploy a single contract, but when I create a deploy.js file to deploy multiple smart contracts, it just …