# How to parse a soap xmp result of amazon?

**URL:** <https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676>\
**Category:** Ruby\
**Created:** [February 20, 2008, 4:14pm UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676 "2008-02-20T16:14:17Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![jacques](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71e660/32.png) [@jacques](https://www.ruby-forum.com/u/jacques)\
**Post date:** [February 20, 2008, 4:14pm UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676/1 "2008-02-20T16:14:17Z")

</div>

hello everybody

i’m really new to ruby and i have to step in a existing ruby projects.  
i want to know what is the best way to access to xml elements.

how could i retrieve all BrowseNodeId’s from the following result?  
What would you suggest?  
This is a .inspect result of the amazon response.

i looked at:  
[http://www.xml.com/pub/a/2005/11/09/rexml-processing-xml-in-ruby.html](http://www.xml.com/pub/a/2005/11/09/rexml-processing-xml-in-ruby.html)

#\<SOAP::Mapping::Object:0x9a8dbe {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/  
2007-10-29}OperationRequest=#\<SOAP::Mapping::Object:0x9a8c60 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}HTTPHeaders=#\<SOAP::Mapping::Object:0x9a8b2a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Header=#SOAP::Mapping::Object:0x9a89f4\> {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}RequestId=“0TZD1KX81QY9WX8SH86V” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Arguments=#\<SOAP::Mapping::Object:0x9a7f54 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Argument=#SOAP::Mapping::Object:0x9a7e0a\> {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}RequestProcessingTime=“0.0293409824371338”\> {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Items=#\<SOAP::Mapping::Object:0x9a71bc {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Request=#\<SOAP::Mapping::Object:0x9a7072 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}IsValid=“True” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/  
2007-10-29}ItemLookupRequest=#\<SOAP::Mapping::Object:0x9a6c3a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}IdType=“ASIN” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}ItemId=“B0000D8H9S” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}ResponseGroup=“BrowseNodes”\>\> {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Item=#\<SOAP::Mapping::Object:0x9a5f38 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}ASIN=“B0000D8H9S” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodes=#\<SOAP::Mapping::Object:  
0x9a5b3c {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=[#\<SOAP::Mapping::Object:0x9a59c0 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“4185471” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Alle N-Gage-Spiele” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0x9a52a4 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0x9a5178 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“4010671” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=" N-Gage" {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0x9a4a34 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0x9a4908 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“355008011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Classics” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0x9a41f6 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0x9a40a2 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“541708” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Plattformen” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}IsCategoryRoot=“1” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Ancestors=#\<SOAP::Mapping::Object:  
0x9a3666 {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0x9a3544 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“300992” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Games”\>\>\>\>\>\>\>\>\>,  
#\<SOAP::Mapping::Object:0xa7f5b2 {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodeId=“382513011” {http://  
[webservices.amazon.com/AWSECommerceService/2007-10-29](http://webservices.amazon.com/AWSECommerceService/2007-10-29)}Name=“Plattform  
(operating\_system\_browse-bin)” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Children=#\<SOAP::Mapping::Object:  
0xa7ef68 {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=[#\<SOAP::Mapping::Object:0xa7ee32 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“382514011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Computerspiele”\>,  
#\<SOAP::Mapping::Object:0xa7e6bc {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodeId=“382515011” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Name=“Konsolen”\>, #\<SOAP::Mapping::Object:0xa7e054 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“382516011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Tragbare Konsolen”\>]\> {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7d8a2 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7d79e {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“366262011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Refinements” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7d15e {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7d01e {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“300992” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Games”\>\>\>\>\>,  
#\<SOAP::Mapping::Object:0xa7c448 {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodeId=“382615011” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Name=“Actionspiele” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Ancestors=#\<SOAP::Mapping::Object:  
0xa7be08 {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7bcfa {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“382614011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Genre (feature\_browse-  
bin)” {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7b6c4 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7b5ac {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“366262011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Refinements” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7af08 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7ae04 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“300992” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Games”\>\>\>\>\>\>\>,  
#\<SOAP::Mapping::Object:0xa7a062 {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodeId=“405731011” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Name=“Freigegeben ab 12 Jahren” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa79a5e {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7995a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“405728011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“USK-Einstufung  
(age\_range)” {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7927a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7913a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“366262011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Refinements” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa789c4 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7887a {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“300992” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Games”\>\>\>\>\>\>\>,  
#\<SOAP::Mapping::Object:0xa777c2 {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}BrowseNodeId=“384027011” {http://  
[webservices.amazon.com/AWSECommerceService/2007-10-29](http://webservices.amazon.com/AWSECommerceService/2007-10-29)}Name=“Hidden  
Node” {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa7702e {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa76f02 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“365397011” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Software & Games f\303\274r  
Kinder” {[http://webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa767b4 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa7664c {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“526742” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Shops” {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}Ancestors=#\<SOAP::Mapping::Object:0xa75d3c {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNode=#\<SOAP::Mapping::Object:0xa75c24 {http://  
[webservices.amazon.com/AWSECommerceService/](http://webservices.amazon.com/AWSECommerceService/)  
2007-10-29}BrowseNodeId=“300992” {[http://webservices.amazon.com/](http://webservices.amazon.com/)  
AWSECommerceService/2007-10-29}Name=“Games”\>\>\>\>\>\>\>]\>\>\>\>

any hint welcome. thank you.  
Jacques

---

<div class="post-metadata">

**Author:** ![jacques](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71e660/32.png) [@jacques](https://www.ruby-forum.com/u/jacques)\
**Post date:** [February 20, 2008, 4:28pm UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676/2 "2008-02-20T16:28:31Z")

</div>

2008/2/20, jacques [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> [REXML: Processing XML in Ruby](http://www.xml.com/pub/a/2005/11/09/rexml-processing-xml-in-ruby.html)  
> Also look at  
> [http://www.germane-software.com/software/rexml/docs/tutorial.html](http://www.germane-software.com/software/rexml/docs/tutorial.html)

Note especially XPath. For further documentation on how to build  
XPath expressions, you can look here:

[http://www.w3schools.com/xpath/](http://www.w3schools.com/xpath/)  
[http://www.zvon.org/xxl/XPathTutorial/General/examples.html](http://www.zvon.org/xxl/XPathTutorial/General/examples.html)

Kind regards

robert

---

<div class="post-metadata">

**Author:** ![jacques](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71e660/32.png) [@jacques](https://www.ruby-forum.com/u/jacques)\
**Post date:** [February 20, 2008, 5:06pm UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676/3 "2008-02-20T17:06:01Z")

</div>

> –  
> use.inject do |as, often| as.you\_can - without end

hi robert  
thank you for the response.  
i tried to use

doc = REXML::Document.new(xml\_data)  
in xml\_data is the posted amazon response (with .inspect)

There is a Error:  
in `parse’: #\<REXML::ParseException: malformed XML: missing tag start  
(REXML::ParseException)

Would this mean that the Amazon Response has a Problem?  
How must xmm\_data be given to REXML::Document.new()?

Ideas?

Thank you.  
Rergards  
Jacques

---

<div class="post-metadata">

**Author:** ![jacques](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71e660/32.png) [@jacques](https://www.ruby-forum.com/u/jacques)\
**Post date:** [February 21, 2008, 2:56am UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676/4 "2008-02-21T02:56:50Z")

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**Author:** ![jacques](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71e660/32.png) [@jacques](https://www.ruby-forum.com/u/jacques)\
**Post date:** [February 20, 2008, 5:43pm UTC](https://www.ruby-forum.com/t/how-to-parse-a-soap-xmp-result-of-amazon/129676/5 "2008-02-20T17:43:31Z")

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2008/2/20, jacques [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> > robert  
> > doc = REXML::Document.new(xml\_data)  
> > in xml\_data is the posted amazon response (with .inspect)

If this is supposed to mean that you stuffed the result of invoking  
#inspect on what you pulled from Amazon then this is certainly not  
going to work.

> There is a Error:  
> in `parse’: #\<REXML::ParseException: malformed XML: missing tag start  
> (REXML::ParseException)
> 
> Would this mean that the Amazon Response has a Problem?  
> How must xmm\_data be given to REXML::Document.new()?

As plain XML - see above.

robert