运行本地 Fuel 节点
除了在 Fuel 测试网上部署和测试外，您还可以运行本地 Fuel 节点。
有两种类型的 Fuel 网络可以运行：
- 内存中的网络（无状态持久性）
- 带有持久性的本地网络
内存中的本地节点（无状态持久性）
内存中的节点不会将区块链状态持久保存在任何地方，它仅在节点处于活动和运行状态时存储在内存中。
要启动本地内存中的 Fuel 节点，请下载或复制来自此处 的本地快照，然后运行以下命令：
fuel-core run --db-type in-memory --debug --snapshot ./your/path/to/chain_config_folder要将合约部署到本地节点，请运行以下命令：
forc deploy <signing-key> --node-url 127.0.0.1:4000/graphql要使用由 fuel-core 预先资助的默认签名者进行部署，请运行以下命令：
forc deploy --default-signer --node-url 127.0.0.1:4000/graphql链配置
要修改链的初始状态，您必须配置链配置文件夹中的 state_config.json 文件。
以下是使用版本 0.26.0 的 fuel-core 的示例：
Here is the specific configuration
chain_config.json
{
"chain_name": "Upgradable Testnet",
"consensus_parameters": {
"V1": {
"tx_params": {
"V1": {
"max_inputs": 255,
"max_outputs": 255,
"max_witnesses": 255,
"max_gas_per_tx": 30000000,
"max_size": 112640,
"max_bytecode_subsections": 256
}
},
"predicate_params": {
"V1": {
"max_predicate_length": 102400,
"max_predicate_data_length": 102400,
"max_message_data_length": 102400,
"max_gas_per_predicate": 30000000
}
},
"script_params": {
"V1": {
"max_script_length": 102400,
"max_script_data_length": 102400
}
},
"contract_params": {
"V1": {
"contract_max_size": 102400,
"max_storage_slots": 1760
}
},
"fee_params": {
"V1": {
"gas_price_factor": 92,
"gas_per_byte": 63
}
},
"chain_id": 0,
"gas_costs": {
"V1": {
"add": 2,
"addi": 2,
"aloc": 1,
"and": 2,
"andi": 2,
"bal": 366,
"bhei": 2,
"bhsh": 2,
"burn": 33949,
"cb": 2,
"cfei": 2,
"cfsi": 2,
"div": 2,
"divi": 2,
"eck1": 3347,
"ecr1": 46165,
"ed19": 4210,
"eq": 2,
"exp": 2,
"expi": 2,
"flag": 1,
"gm": 2,
"gt": 2,
"gtf": 16,
"ji": 2,
"jmp": 2,
"jne": 2,
"jnei": 2,
"jnzi": 2,
"jmpf": 2,
"jmpb": 2,
"jnzf": 2,
"jnzb": 2,
"jnef": 2,
"jneb": 2,
"lb": 2,
"log": 754,
"lt": 2,
"lw": 2,
"mint": 35718,
"mlog": 2,
"mod": 2,
"modi": 2,
"move": 2,
"movi": 2,
"mroo": 5,
"mul": 2,
"muli": 2,
"mldv": 4,
"noop": 1,
"not": 2,
"or": 2,
"ori": 2,
"poph": 3,
"popl": 3,
"pshh": 4,
"pshl": 4,
"ret_contract": 733,
"rvrt_contract": 722,
"sb": 2,
"sll": 2,
"slli": 2,
"srl": 2,
"srli": 2,
"srw": 253,
"sub": 2,
"subi": 2,
"sw": 2,
"sww": 29053,
"time": 79,
"tr": 46242,
"tro": 33251,
"wdcm": 3,
"wqcm": 3,
"wdop": 3,
"wqop": 3,
"wdml": 3,
"wqml": 4,
"wddv": 5,
"wqdv": 7,
"wdmd": 11,
"wqmd": 18,
"wdam": 9,
"wqam": 12,
"wdmm": 11,
"wqmm": 11,
"xor": 2,
"xori": 2,
"call": {
"LightOperation": {
"base": 21687,
"units_per_gas": 4
}
},
"ccp": {
"LightOperation": {
"base": 59,
"units_per_gas": 20
}
},
"croo": {
"LightOperation": {
"base": 1,
"units_per_gas": 1
}
},
"csiz": {
"LightOperation": {
"base": 59,
"units_per_gas": 195
}
},
"k256": {
"LightOperation": {
"base": 282,
"units_per_gas": 3
}
},
"ldc": {
"LightOperation": {
"base": 45,
"units_per_gas": 65
}
},
"logd": {
"LightOperation": {
"base": 1134,
"units_per_gas": 2
}
},
"mcl": {
"LightOperation": {
"base": 3,
"units_per_gas": 523
}
},
"mcli": {
"LightOperation": {
"base": 3,
"units_per_gas": 526
}
},
"mcp": {
"LightOperation": {
"base": 3,
"units_per_gas": 448
}
},
"mcpi": {
"LightOperation": {
"base": 7,
"units_per_gas": 585
}
},
"meq": {
"LightOperation": {
"base": 11,
"units_per_gas": 1097
}
},
"retd_contract": {
"LightOperation": {
"base": 1086,
"units_per_gas": 2
}
},
"s256": {
"LightOperation": {
"base": 45,
"units_per_gas": 3
}
},
"scwq": {
"HeavyOperation": {
"base": 30375,
"gas_per_unit": 28628
}
},
"smo": {
"LightOperation": {
"base": 64196,
"units_per_gas": 1
}
},
"srwq": {
"HeavyOperation": {
"base": 262,
"gas_per_unit": 249
}
},
"swwq": {
"HeavyOperation": {
"base": 28484,
"gas_per_unit": 26613
}
},
"contract_root": {
"LightOperation": {
"base": 45,
"units_per_gas": 1
}
},
"state_root": {
"HeavyOperation": {
"base": 350,
"gas_per_unit": 176
}
},
"new_storage_per_byte": 63,
"vm_initialization": {
"LightOperation": {
"base": 1645,
"units_per_gas": 14
}
}
}
},
"base_asset_id": "0000000000000000000000000000000000000000000000000000000000000000",
"block_gas_limit": 30000000,
"privileged_address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"consensus": {
"PoA": {
"signing_key": "f65d6448a273b531ee942c133bb91a6f904c7d7f3104cdaf6b9f7f50d3518871"
}
}
} metadata.json
{
"chain_config": "chain_config.json",
"table_encoding": {
"Json": {
"filepath": "state_config.json"
}
}
} state_config.json
{
"coins": [],
"messages": [],
"contracts": [
{
"contract_id": "7777777777777777777777777777777777777777777777777777777777777777",
"code": "9000000994318e6e453f30e85bf6088f7161d44e57b86a6af0c955d22b353f91b2465f5e6140000a504d00205d4d30001a4860004945048076440001240400005050c0043d51345024040000",
"tx_id": "0000000000000000000000000000000000000000000000000000000000000000",
"output_index": 0,
"tx_pointer_block_height": 0,
"tx_pointer_tx_idx": 0,
"states": [],
"balances": []
}
],
"last_block": null
} state_transition_bytecode.wasm
Which is too large to display on this page, but you can find it here
要使用自定义配置启动节点，可以使用以下命令：
fuel-core run --snapshot ./your/path/to/chain_config_folder --db-type in-memory --debug 要查找特定 fuel-core 版本的示例链配置文件夹，请参考 fuel-core 存储库。
为本地钱包添加资金
您可以编辑 state_config.json 中的 coins 数组，以修改给定地址拥有的初始资产。
owner 地址必须是 B256 类型地址（以 0x 开头），而不是 Bech32 类型地址（以 fuel 开头）。
amount 是一个数值。在此示例中，该值转换为 11,152,921,504 ETH。
本地节点（带有状态持久性）
此节点会在本地持久化区块链状态。 要运行具有持久性的本地节点，需要一个链配置文件。
要启动节点，请运行以下命令：
fuel-core run --ip 127.0.0.1 --port 4000 --snapshot ./your/path/to/chain_config_folder --db-path ./.fueldb --debug从浏览器钱包连接到本地节点
要使用浏览器钱包连接到本地节点，请将网络地址导入为：
http://127.0.0.1:4000/graphql