Deploying Move Modules on Aptos: Turnkey Smart Contract Deployment
You spent weeks writing Move modules for a DeFi protocol on Aptos, but at deploy you got a type compatibility error. Or you forgot to replace an address placeholder — the contract went to mainnet with the wrong owner. Such mistakes are costly: gas savings after optimizing Move code reach 30%, and reentrancy attacks, which account for 15% of EVM hacks, are semantically impossible in Move. We are a team of blockchain engineers with 7 years of experience, having deployed 40+ contracts on Aptos, and we know how to avoid these pitfalls.
Main Problems When Deploying Move Modules
The first problem is resource type safety. In Move, a resource cannot be copied or destroyed by mistake, but this imposes design constraints. In Solidity, balances are stored in mappings. In Move, you need to rethink the architecture. The second problem is upgrade policy. Many choose compatible by default without understanding its limitations. If you need to change a function signature — only immutable or redeploy with migration. The third problem is address management. Named addresses in Move.toml must be fixed before deployment. An address error is one of the most common causes of failures (about 30% of cases).
A typical case: a client accidentally deleted a field from a resource in a new module. The publication went through, but old data became inaccessible. We had to deploy a new module and migrate the state. To avoid this, use aptos move compatibility-check.
How to Deploy a Move Module on Aptos?
A typical Move module looks like this:
Example module
module my_addr::token { use std::signer; struct CoinStore has key { balance: u64, } public fun initialize(account: &signer) { move_to(account, CoinStore { balance: 0 }); } public fun deposit(account: &signer, amount: u64) acquires CoinStore { let store = borrow_global_mut<CoinStore>(signer::address_of(account)); store.balance = store.balance + amount; } } After writing the code, use the Aptos CLI. Initialize the account and publish:
aptos init --network mainnet --profile prod aptos move publish \ --package-dir . \ --named-addresses protocol=0xPROTOCOL \ --profile prod It is important to pin the rev of dependencies in Move.toml for reproducibility:
[package] name = "MyProtocol" version = "1.0.0" upgrade_policy = "compatible" [addresses] protocol = "_" [dependencies.AptosFramework] git = "https://github.com/aptos-labs/aptos-core.git" rev = "mainnet" subdir = "aptos-move/framework/aptos-framework" Comparison of Compatible and Immutable Upgrade Policies
| Parameter | compatible | immutable |
|---|---|---|
| Adding new functions | Yes | Yes |
| Changing existing function signatures | No | No |
| Adding new resources | Yes | Yes |
| Changing existing resource fields | No | No |
| Upgradeability | Yes (with restrictions) | No |
| When to use | Production with live logic | Simple tokens, NFTs, bridges |
compatible offers flexibility but requires discipline: you cannot delete a field from a resource. immutable is a bulletproof guarantee, but at the cost of being unable to fix bugs.
Move vs Solidity: Which Is Safer?
| Characteristic | Move (Aptos) | Solidity (EVM) |
|---|---|---|
| Type safety | Resource-oriented, no double-spend | Mapping-based, reentrancy risk |
| Error detection | Static checking, Prover | Dynamic testing |
| Gas cost (token transfer) | 20-30% lower per Aptos Labs | Higher due to data storage |
| Upgradeability | Compatible — backward compatible | Via proxy contracts |
Move delivers gas savings of up to 30% and eliminates an entire class of vulnerabilities. After deploying five of our modules on Aptos mainnet, not a single incident has been recorded.
Why Use Move for DeFi?
Move is designed for asset safety. In Solidity, a calculation error can lead to the loss of an entire pool. In Move, resources are protected at the language level. For example, a flash loan attack is impossible in Move because a resource cannot be temporarily borrowed without preservation. Additionally, transaction cost on Aptos is roughly 10 times lower than on Ethereum, thanks to batch transaction processing.
How to Set Up CI/CD for Deployment?
For automation use GitHub Actions: install aptos CLI, compile, test, publish to testnet, manual trigger for mainnet. The workflow includes a compatibility check before upgrade. This reduces the risk of human error.
What the Deployment Work Includes
- Security audit of Move module (static analysis via Slither for Move)
- Writing unit tests and Prover specifications (modules must pass formal verification)
- Configuration of Move.toml: dependencies, named addresses, upgrade policy
- Publishing the module and verification on explorer
- Setting up a multisig for the deployer account (Aptos native multisig)
- Documentation for function calls and integration
Timelines — from 2 to 7 working days depending on module complexity. The cost is calculated individually — contact us for a project assessment.
Work Process: From Audit to Deployment
- Analysis: we study your project, contract specification, identify potential issues.
- Design: architecture of Move modules, upgrade policy selection, CI/CD setup.
- Development: we write modules, tests, Prover specifications (if needed).
- Testing: unit, integration, fuzzing (Echidna for Move).
- Deployment: publish to testnet, then mainnet with multisig.
- Post-deployment: verification, monitoring, documentation.
Order Deployment with Security Guarantee
Our team has 7+ years of experience in blockchain development and 40+ successful deployments on Aptos. Get a free consultation — we will assess your project and propose the optimal solution. Contact us through our website.