[英]Express: Assigning arrays within req.body object to individual variables
讓Express和body-parser讀取應用程序的Angular端正在發送的JSON對象時,我一直遇到很多麻煩。 根據我的嘗試,我的變量賦值語法似乎有些奇怪。 到目前為止,我已經嘗試了多種語法,但都沒有成功,所以我希望有人可以幫助我找出正確的方法,將請求主體中的各個位分配給它們的相關變量。
這是到目前為止我完成的一些故障排除:
驗證我要發送的對象和數據實際上已過帳。
驗證Content-Type為“ application / json”。
驗證body-parser正在處理請求,並且req.body中已填充數據。
嘗試使用和不使用“ application / json”作為內容類型的顯式設置而結果沒有任何變化。
這是$ http在Angular端發送數據的方式:
.controller ('Ctrl', function($scope, $http) {
$scope.generateLabel = function(){
var httpData = [
{"addressToName": $scope.addressToName},
{"addressToStreet1": $scope.addressToStreet1},
{"addressToCity": $scope.addressToCity},
{"addressToState": $scope.addressToState},
{"addressToZip": $scope.addressToZip},
{"addressToEmail": $scope.addressToEmail},
{"parcelType": $scope.parcelType},
{"note": $scope.note},
{"sku": $scope.sku}];
$http({
method: 'POST',
url: '/postURL',
headers: {
'Content-Type': "application/json"
},
data: httpData
});
};
...這是我的Express POST路線的相關內容:
var bodyParser = require('body-parser');
app.use(bodyParser.json({strict: false}));
app.post('/postURL', function(req, res) {
var addressToName = req.body.addressToName;
var addressToStreet1 = req.body.addressToStreet1;
var addressToCity = req.body.addressToCity;
var addressToState = req.body.addressToState;
var addressToZip = req.body.addressToZip;
var addressToCountry = 'US';
var addressToEmail = req.body.addressToEmail;
}
這是我在節點控制台中進行測試時看到的內容。 最重要的消息來自body-parser的調試模式,然后是原始的req.body,然后是我要分配給它們的變量:
body-parser:json content-type "application/json" +0ms
body-parser:json content-encoding "identity" +2ms
body-parser:json read body +1ms
body-parser:json parse body +13ms
body-parser:json parse json +1ms
Request body follows:
[ { addressToName: 'My name' },
{ addressToStreet1: 'My address' },
{ addressToCity: 'Anytown' },
{ addressToState: 'OR' },
{ addressToZip: '97504' },
{ addressToEmail: 'My@email.com' },
{ parcelType: '8lb Box' },
{ note: '12314' },
{ sku: '11111' } ]
Variables assigned:
{ addressToName: undefined,
addressToStreet1: undefined,
addressToCity: undefined,
addressToState: undefined,
addressToZip: undefined,
addressToCountry: 'US',
addressToEmail: undefined }
看起來req.body
是具有屬性的對象數組,而不是具有屬性本身的對象。 您的JS必須是:
var addressToName = req.body[0].addressToName;
var addressToStreet1 = req.body[1].addressToStreet1;
// etc.
我建議讓Angular將所有這些屬性放到一個對象中,如下所示:
var httpData = {
"addressToName": $scope.addressToName,
"addressToStreet1": $scope.addressToStreet1,
// etc.
};
然后,您現有的JS應該可以使用。
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