laconicd/x/feemarket/spec/08_client.md
2022-10-10 16:08:33 +05:30

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# Client
## CLI
A user can query and interact with the `feemarket` module using the CLI.
### Queries
The `query` commands allow users to query `feemarket` state.
```go
ethermintd query feemarket --help
```
#### Base Fee
The `base-fee` command allows users to query the block base fee by height.
```
ethermintd query feemarket base-fee [height] [flags]
```
Example:
```
ethermintd query feemarket base-fee 5...
```
Example Output:
```
base_fee: "512908936"
```
#### Block Gas
The `block-gas` command allows users to query the block gas by height.
```
ethermintd query feemarket block-gas [height] [flags]
```
Example:
```
ethermintd query feemarket block-gas 5...
```
Example Output:
```
gas: "21000"
```
#### Params
The `params` command allows users to query the module params.
```
ethermintd query params subspace [subspace] [key] [flags]
```
Example:
```
ethermintd query params subspace feemarket ElasticityMultiplier ...
```
Example Output:
```
key: ElasticityMultiplier
subspace: feemarket
value: "2"
```
## gRPC
### Queries
| Verb | Method | Description |
| ------ | ---------------------------------------------------- | -------------------------------------------------------------------------- |
| `gRPC` | `ethermint.feemarket.v1.Query/Params` | Get the module params |
| `gRPC` | `ethermint.feemarket.v1.Query/BaseFee` | Get the block base fee |
| `gRPC` | `ethermint.feemarket.v1.Query/BlockGas` | Get the block gas used |
| `GET` | `/feemarket/evm/v1/params` | Get the module params |
| `GET` | `/feemarket/evm/v1/base_fee` | Get the block base fee |
| `GET` | `/feemarket/evm/v1/block_gas` | Get the block gas used |