Amaury
9898ac5e9d
## Description The Juno halt was caused by a smart contract calling a SDK's gRPC query that was not deterministic (at least that's my understanding). As such, a fix was proposed on cosmwasm to whitelist only the gRPC queries that are deterministic. For example, gRPC queries that return node-specific config would not be whitelisted. In my opinion, all module queries MUST be deterministic, since they can be part of the state machine. This PR will also help adr-033. i made a quick audit of all `x/*` grpc_query.go, to make sure all of them were deterministic. The only non-determinism I found was in auth's ModuleAccount, but it's introduced in v0.46 and not released yet. --- ### Author Checklist *All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.* I have... - [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] added `!` to the type prefix if API or client breaking change - [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting)) - [ ] provided a link to the relevant issue or specification - [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules) - [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing) - [ ] added a changelog entry to `CHANGELOG.md` - [ ] included comments for [documenting Go code](https://blog.golang.org/godoc) - [ ] updated the relevant documentation or specification - [ ] reviewed "Files changed" and left comments if necessary - [ ] confirmed all CI checks have passed ### Reviewers Checklist *All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.* I have... - [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] confirmed `!` in the type prefix if API or client breaking change - [ ] confirmed all author checklist items have been addressed - [ ] reviewed state machine logic - [ ] reviewed API design and naming - [ ] reviewed documentation is accurate - [ ] reviewed tests and test coverage - [ ] manually tested (if applicable)
List of Modules
Here are some production-grade modules that can be used in Cosmos SDK applications, along with their respective documentation:
- Auth - Authentication of accounts and transactions for Cosmos SDK applications.
- Authz - Authorization for accounts to perform actions on behalf of other accounts.
- Bank - Token transfer functionalities.
- Capability - Object capability implementation.
- Crisis - Halting the blockchain under certain circumstances (e.g. if an invariant is broken).
- Distribution - Fee distribution, and staking token provision distribution.
- Epoching - Allows modules to queue messages for execution at a certain block height.
- Evidence - Evidence handling for double signing, misbehaviour, etc.
- Feegrant - Grant fee allowances for executing transactions.
- Governance - On-chain proposals and voting.
- Mint - Creation of new units of staking token.
- Params - Globally available parameter store.
- Slashing - Validator punishment mechanisms.
- Staking - Proof-of-Stake layer for public blockchains.
- Upgrade - Software upgrades handling and coordination.
To learn more about the process of building modules, visit the building modules reference documentation.
IBC
The IBC module for the SDK has moved to its own repository.