addcfbf5cb
* Update docs/sdk/clients.md * organize ADR directory like tendermint * docs: move spec-proposals into spec/ * remove lotion, moved to website repo * move getting-started to cosmos-hub, and voyager to website * docs: move lite/ into clients/lite/ * move introduction/ content to website repo * move resources/ content to website repo * mv sdk/clients.md to clients/clients.md * mv validators to cosmos-hub/validators * move deprecated sdk/ content to _attic * sdk/modules.md is duplicate with modules/README.md * consolidate remianing sdk/ files into a single sdk.md * move examples/ to docs/examples/ * mv docs/cosmos-hub to docs/gaia * Add keys/accounts section to localnet docs
14 lines
1.2 KiB
Markdown
14 lines
1.2 KiB
Markdown
# baseApp
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`baseApp` requires stores to be mounted via capabilities keys - handlers can only access stores they're given the key to. The `baseApp` ensures all stores are properly loaded, cached, and committed. One mounted store is considered the "main" - it holds the latest block header, from which we can find and load the most recent state.
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`baseApp` distinguishes between two handler types - the `AnteHandler` and the `MsgHandler`. The former is a global validity check (checking nonces, sigs and sufficient balances to pay fees,
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e.g. things that apply to all transaction from all modules), the later is the full state transition function.
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During CheckTx the state transition function is only applied to the checkTxState and should return
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before any expensive state transitions are run (this is up to each developer). It also needs to return the estimated
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gas cost.
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During DeliverTx the state transition function is applied to the blockchain state and the transactions
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need to be fully executed.
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BaseApp is responsible for managing the context passed into handlers - it makes the block header available and provides the right stores for CheckTx and DeliverTx. BaseApp is completely agnostic to serialization formats. |