This question already has an answer here:
- Find by key deep in a nested object 11 answers
I have to fight with JSON returns (which i get out of a XML response from Amazon Marketplace API). It contains arrays, subarrays and so on. At the moment i need to get only 2 values (AmazonOrderId and OrderItem object), but i don't find a way to address them directly. I still try for hours. Recursive things scare me a bit.
There are so many tools out there, also for beatifying or editing JSON. So is there possibly also a solution which shows all the property links recursively? Up to now i have not found something like this.
UPDATE: With the code from squint's answer i have build a quick and dirty tool which does what i wanted. Here it is: http://output.jsbin.com/gunixo
like:
myJSON.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].QuantityOrdered
myJSON.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].Title
...
This would really save time, in such a case.
{
"ListOrderItemsResponse": {
"$": {
"xmlns": "https://mws.amazonservices.com/Orders/2013-09-01"
},
"ListOrderItemsResult": [{
"OrderItems": [{
"OrderItem": [{
"QuantityOrdered": ["1"],
"Title": ["My Product Title"],
"ShippingTax": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}],
"PromotionDiscount": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}],
"ConditionId": ["New"],
"ASIN": ["BXXXI5W6M8"],
"SellerSKU": ["KNDR-BTTWSCH-BGSBNNY"],
"OrderItemId": ["67050234000659"],
"GiftWrapTax": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}],
"QuantityShipped": ["1"],
"ShippingPrice": [{
"CurrencyCode": ["EUR"],
"Amount": ["4.90"]
}],
"GiftWrapPrice": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}],
"ConditionSubtypeId": ["New"],
"ItemPrice": [{
"CurrencyCode": ["EUR"],
"Amount": ["15.77"]
}],
"ItemTax": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}],
"ShippingDiscount": [{
"CurrencyCode": ["EUR"],
"Amount": ["0.00"]
}]
}]
}],
"AmazonOrderId": ["304-6107803-0000000"]
}],
"ResponseMetadata": [{
"RequestId": ["dd64dd40-d939-4ea1-875d-xxxxxxxxxxxx"]
}]
}
}
If you truly only need those two values, you can do it while it's being parsed.
var data = {};
// ----------v--- Original JSON data before parsing.
JSON.parse(myJSON, function(k, v) {
if (k === "AmazonOrderId" || k === "OrderItem") {
data[k] = v;
}
return v;
});
That said... recursive stuff shouldn't be scary. And there are many pre-written functions on StackOverflow that accept the property you're looking for and return the value, so you could just use one of those.
Here's a simple recursive function that generates paths to all the data.
function objectToPaths(data) {
var validId = /^[a-z_$][a-z0-9_$]*$/i;
var result = [];
doIt(data, "");
return result;
function doIt(data, s) {
if (data && typeof data === "object") {
if (Array.isArray(data)) {
for (var i = 0; i < data.length; i++) {
doIt(data[i], s + "[" + i + "]");
}
} else {
for (var p in data) {
if (validId.test(p)) {
doIt(data[p], s + "." + p);
} else {
doIt(data[p], s + "[\"" + p + "\"]");
}
}
}
} else {
result.push(s);
}
}
}
All Array members are listed individually. This could be consolidated if you know that the data structures in those array members are always identical.
Result for your data:
.ListOrderItemsResponse.$.xmlns
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].QuantityOrdered[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].Title[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingTax[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingTax[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].PromotionDiscount[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].PromotionDiscount[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ConditionId[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ASIN[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].SellerSKU[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].OrderItemId[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].GiftWrapTax[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].GiftWrapTax[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].QuantityShipped[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingPrice[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingPrice[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].GiftWrapPrice[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].GiftWrapPrice[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ConditionSubtypeId[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ItemPrice[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ItemPrice[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ItemTax[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ItemTax[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingDiscount[0].CurrencyCode[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].OrderItems[0].OrderItem[0].ShippingDiscount[0].Amount[0]
.ListOrderItemsResponse.ListOrderItemsResult[0].AmazonOrderId[0]
.ListOrderItemsResponse.ResponseMetadata[0].RequestId[0]
来源：https://stackoverflow.com/questions/30286814/recursively-list-all-object-property-paths-from-json