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Geunwoo Kim edited this page Aug 19, 2022 · 18 revisions

Prerequisites: https://docs.cosmwasm.com/docs/1.0/getting-started/installation/#installing-rust-in-linux-and-mac

We recommend starting with this tutorial https://docs.cosmwasm.com/dev-academy/develop-smart-contract/develop/.

In the tutorial, we interact with the testnet using wasmd and JS CLI. In our project, we will use cosmr which is Rust cosmos SDK that creates and signs transactions.

https://docs.junonetwork.io/smart-contracts-and-junod-development/tutorial-erc-20 this tutorial is not good.

How to setup a testnet wallet and make a faucet request

https://docs.cosmwasm.com/dev-academy/basics/environment#setup-wasmd-and-wallet

Troubleshooting

  • The original optimizer does not work well in Mac M1. For Mac M1 machine, we need to run the following command.
docker run --rm -v "$(pwd)":/code \
  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
  cosmwasm/rust-optimizer-arm64:0.12.6
  • If the original version of the compiled contract is not optimized following the instruction, it is rejected by the network due to the size limitation (i.e., your contract in /artifacts directory should be uploaded).
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