## 1. 釋義 調用指定給的鏈碼。該命令將嘗試向網絡提交背書過的交易。 ## 2. 使用方法 ``` ~$ peer chaincode invoke [flags] ``` ## 3. 命令標志 ``` -C, --channelID string The channel on which this command should be executed --connectionProfile string Connection profile that provides the necessary connection information for the network. Note: currently only supported for providing peer connection information -c, --ctor string Constructor message for the chaincode in JSON format (default "{}") -h, --help help for invoke -n, --name string Name of the chaincode --peerAddresses stringArray The addresses of the peers to connect to --tlsRootCertFiles stringArray If TLS is enabled, the paths to the TLS root cert files of the peers to connect to. The order and number of certs specified should match the --peerAddresses flag --waitForEvent Whether to wait for the event from each peer's deliver filtered service signifying that the 'invoke' transaction has been committed successfully --waitForEventTimeout duration Time to wait for the event from each peer's deliver filtered service signifying that the 'invoke' transaction has been committed successfully (default 30s) ``` 全局標志： ``` --cafile string Path to file containing PEM-encoded trusted certificate(s) for the ordering endpoint --certfile string Path to file containing PEM-encoded X509 public key to use for mutual TLS communication with the orderer endpoint --clientauth Use mutual TLS when communicating with the orderer endpoint --connTimeout duration Timeout for client to connect (default 3s) --keyfile string Path to file containing PEM-encoded private key to use for mutual TLS communication with the orderer endpoint -o, --orderer string Ordering service endpoint --ordererTLSHostnameOverride string The hostname override to use when validating the TLS connection to the orderer. --tls Use TLS when communicating with the orderer endpoint --transient string Transient map of arguments in JSON encoding ``` ## 4. 示例代碼 下面的示例展示課如何使用`peer chaincode invoke`命令通過節點 peer0.org1.example.com:7051 和節點peer0.org2.example.com:7051 調用通道`mychannel`上的鏈碼mycc（版本1.0），請求鏈碼從變量 a向變量b轉義10個單位。 ``` ~$ peer chaincode invoke -o orderer.example.com:7050 -C mychannel -n mycc --peerAddresses peer0.org1.example.com:7051 --peerAddresses peer0.org2.example.com:7051 -c '{"Args":["invoke","a","b","10"]}' 2018-02-22 16:34:27.069 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 001 Using default escc 2018-02-22 16:34:27.069 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 002 Using default vscc . . . 2018-02-22 16:34:27.106 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> DEBU 00a ESCC invoke result: version:1 response:<status:200 message:"OK" > payload:"\n \237mM\376? [\214\002 \332\204\035\275q\227\2132A\n\204&\2106\037W|\346#\3413\274\022Y\nE\022\024\n\004lscc\022\014\n\n\n\004mycc\022\002\010\003\022-\n\004mycc\022%\n\007\n\001a\022\002\010\003\n\007\n\001b\022\002\010\003\032\007\n\001a\032\00290\032\010\n\001b\032\003210\032\003\010\310\001\"\013\022\004mycc\032\0031.0" endorsement:<endorser:"\n\007Org1MSP\022\262\006-----BEGIN CERTIFICATE-----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\nAiAlQffq2JFlbh6OWURGOko6RckizG8oVOldZG/Xj3C8lA==\n-----END CERTIFICATE-----\n" signature:"0D\002 \022_\342\350\344\231G&\237\n\244\375\302J\220l\302\345\210\335D\250y\253P\0214:\221e\332@\002 \000\254\361\224\247\210\214L\277\370\222\213\217\301\r\341v\227\265\277\336\256^\217\336\005y*\321\023\025\367" > 2018-02-22 16:34:27.107 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 00b Chaincode invoke successful. result: status:200 2018-02-22 16:34:27.107 UTC [main] main -> INFO 00c Exiting..... ``` 根據日志消息你可以看到調用已經成功提交： ``` 2018-02-22 16:34:27.107 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 00b Chaincode invoke successful. result: status:200 ``` 上面的響應表示交易已經成功提交給排序器，該交易將隨后被加入一個區塊，并最終被通道中的每個peer 節點驗證。