node.js - 无法在截止日期前连接 URL :grpcs://localhost:8051

Question

我正在使用 docker-compose 运行 byfn 教程的修改版本，其中包含 5 个排序者、1 个组织、2 个对等点和 1 个 ca 服务。在本地，我正在 macOs Catalina 上使用 node v10.18.1 运行 Node 应用程序。hyperledger Fabric 版本 1.4 也正在使用中。

我尝试将与 grpcUrl 相关的 connection.json 文件中的路径从 localhost 替换为 dockerspect 命令提供的容器的 IP，也替换为 0.0.0.0，但没有成功，还使用 ​​telnet 来 grep 暴露的端口，并运行 docker ps 来检查所有容器是否都在使用正确的端口运行。

在我的代码中，我可以成功注册管理员和其他用户，但当我尝试连接到网关以调用链代码时失败。

我不断在 API 日志中收到错误:

2020-01-15T15:42:37.920Z - error: [Remote.js]: Error: Failed to connect before the deadline URL:grpcs://localhost:7051
2020-01-15T15:42:37.922Z - error: [Channel.js]: Error: Failed to connect before the deadline URL:grpcs://localhost:7051
2020-01-15T15:42:40.929Z - error: [Remote.js]: Error: Failed to connect before the deadline URL:grpcs://localhost:8051
2020-01-15T15:42:40.929Z - error: [Channel.js]: Error: Failed to connect before the deadline URL:grpcs://localhost:8051
2020-01-15T15:42:40.930Z - error: [Network]: _initializeInternalChannel: Unable to initialize channel. Attempted to contact 2 Peers. Last error was Error: Failed to connect before the deadline URL:grpcs://localhost:8051
level:warn time:2020-01-15T15:42:40.932Z message: "x-request-id_ac5294fd-9587-4432-87d9-ada4e73a1142 creating user product Unable to initialize channel. Attempted to contact 2 Peers. Last error was Error: Failed to connect before the deadline URL:grpcs://localhost:8051"

为什么我会收到此错误？

我的connection.json文件是:

{
    "name": "first-network-org1",
    "version": "1.0.0",
    "client": {
        "organization": "Org1",
        "connection": {
            "timeout": {
                "peer": {
                    "endorser": "300"
                }
            }
        }
    },
    "organizations": {
        "Org1": {
            "mspid": "Org1MSP",
            "peers": [
                "peer0.org1.example.com",
                "peer1.org1.example.com"
            ],
            "certificateAuthorities": [
                "ca.org1.example.com"
            ]
        }
    },
    "peers": {
        "peer0.org1.example.com": {
            "url": "grpcs://localhost:7051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE-----...\n-----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer0.org1.example.com",
                "hostnameOverride": "peer0.org1.example.com"
            }
        },
        "peer1.org1.example.com": {
            "url": "grpcs://localhost:8051",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE-----...\n-----END CERTIFICATE-----\n"
            },
            "grpcOptions": {
                "ssl-target-name-override": "peer1.org1.example.com",
                "hostnameOverride": "peer1.org1.example.com"
            }
        }
    },
    "certificateAuthorities": {
        "ca.org1.example.com": {
            "url": "https://localhost:7054",
            "caName": "ca-org1",
            "tlsCACerts": {
                "pem": "-----BEGIN CERTIFICATE-----...\n-----END CERTIFICATE-----\n"
            },
            "httpOptions": {
                "verify": false
            }
        }
    }
}

这些是我的 package.json 文件中的依赖项(请记住，我已尝试手动安装最新的 grpc 模块，但没有成功):

"dependencies": {
    "body-parser": "^1.18.3",
    "cors": "^2.8.5",
    "express": "^4.16.4",
    "fabric-ca-client": "^1.4.4",
    "fabric-client": "^1.4.4",
    "fabric-network": "^1.4.4",
    "helmet": "^3.15.1",
    "http-status": "^1.3.1",
    "joi": "^14.3.1",
    "lodash": "^4.17.11",
    "nconf": "^0.10.0",
    "request-promise": "^4.2.4",
    "swagger-stats": "^0.95.7",
    "uuid": "^3.3.2",
    "winston": "^3.2.1",
    "xss": "^1.0.3"
  }

这是我的失败代码:

const initGateway = async (params) => {
  try {
    const {
      wallet,
      identity,
      discovery, // object with { enabled: true, asLocalhost: true }
      channelName,
      contractName
    } = params;

    // Create a new gateway for connecting to our peer node.
    const gateway = new Gateway();
    await gateway.connect(ccpPath, { wallet, identity, discovery });

    // Get the network (channel) our contract is deployed to.
    const network = await gateway.getNetwork(channelName);
    logger.info({ message: `NETWORK ${network}` });
    // Get the contract from the network.
    const contract = network.getContract(contractName);

    return { gateway, contract };
  } catch (err) {
    throw err;
  }
};

const createProduct = async (dataObj) => {
  try {
    const {
      userIdentity,
      seller,
      value,
      description,
      issueDateTime,
      productId
    } = dataObj;
    // Create a new file system based wallet for managing identities
    const wallet = new FileSystemWallet(walletFilePath);

    const params = {
      wallet,
      identity: userIdentity,
      discovery: { enabled: true, asLocalhost: true },
      channelName: 'mychannel',
      contractName: 'mychaincode'
    };
    // Get the contract from the network.
    const { gateway, contract } = await initGateway(params);

    await contract.submitTransaction('setForSale', seller, productId, issueDateTime, value, description);

    // Disconnect from the gateway.
    await gateway.disconnect();
  } catch (err) {
    throw err;
  }
};

Answer 1

通过在 docker-compose 文件中查找 CORE_PEER_TLS_ENABLED=true 标志，确保为对等点启用 TLS 通信。如果未设置为 true，则将连接配置文件中的对等 URL 从 grpcs://localhost:7051 修改为 grpc://localhost:7051