我在请求正文中得到一个数组,如:
[
{
"month": "JUL",
"year": "2018"
},
{
"month": "JAN",
"year": "2018"
},
{
"month": "MAR",
"year": "2018"
}
]
此输入有两个参数(month:enum
和year:string
)。
我需要遍历此数组并调用链码,最后发送响应。我已完成以下操作:
for (var i = 0; i < req.body.length; i++) {
var month = req.body[i].month;
var year = req.body[i].year;
var monthYear = month + year;
key = monthYear + "_new";
console.log("Key is ", key);
var request = {
//targets: let default to the peer assigned to the client
chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: [key]
//Calling chaincode smartcontract
return channel.queryByChaincode(request);
}
,但如果我仅传递一个输入参数,则响应正确。如果我在输入中传递两个值,则第二个值结果将覆盖第一个值。关于如何获得重叠部分的所有输入列表的响应的任何帮助。
此外,我需要在调用链码之前对输入值进行排序,例如,如果输入中输入Feb Mar Jan,则应将其排序为Jan Feb Mar,然后运行for循环。
对此有任何帮助。
谢谢。
答案 0 :(得分:0)
尝试此代码可能对您有用
var request=[];
for(var i=0; i<req.body.length; i++) {
var month =req.body[i].month;
var year = req.body[i].year;
var monthYear = month + year;
key = monthYear + "_new";
console.log("Key is ", key);
request.push( {
//targets: let default to the peer assigned to the client
chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: key
});
//Calling chaincode smartcontract
}
console.log(request);
return channel.queryByChaincode(request);
输出:
[ { chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: 'JAN2018_new' },
{ chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: 'JUL2018_new' },
{ chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: 'MAR2018_new' } ]
答案 1 :(得分:0)
创建所有请求对象的数组,并将其传递给queryByChaincode。
var requests = req.body.map((body) => {
return {
chaincodeId: 'abc',
fcn: 'getTransactionsByKey',
args: [`${body.month}${body.year}_new`]
};
});
return channel.queryByChaincode(requests);