Re^3: parse json data with underscore symbol

Dear kevbot,
Yes I updated the all post as you asked
still have a small problem when I print the second element in the array

print 'ge= ' . $decoded->{_embded}{stes}[1]{ge}, "\n"
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I got this error.
Use of uninitialized value in concatenation (.) or string

Comment on Re^3: parse json data with underscore symbol Download Code

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Re^4: parse json data with underscore symbol by kevbot (Vicar) on Aug 18, 2018 at 07:51 UTC
The array reference given by `$decoded->{_embded}{stes}` only has one element so the data is at index 0. Try this, `$decoded->{_embded}{stes}[0]{ge}`	[reply] [d/l] [select]
Re^5: parse json data with underscore symbol by amaa11 (Initiate) on Aug 19, 2018 at 10:05 UTC
Dear Kevbot, Thanks a lot for providing me these info. Just imagine that I have a very long of the data (Json) as i posted in the post. And I wand print all what I want by a loop to parse all the data. Can you suggest any module or way to do that?? Regards	[reply]
Re^6: parse json data with underscore symbol by kevbot (Vicar) on Aug 20, 2018 at 04:41 UTC
Hello amaa11, It's difficult to give advice because the code you need to write will be highly dependent on the data structure returned by `decode_json`, which is highly dependent on the structure of your JSON string. If you are going to be extracting data from complex JSON strings, then it may be helpful to use a module that helps you extract the data (without having to worry about the perl data structure). One such module is JSON::Path. It lets your write a `JSONPath` string to extract the data. This way you can write a `JSONPath` string that will extract only the portion of data that you are interested in and it will reduce the amount of perl code you need to write. I have converted your script of use JSON::Path to give you an example to work from. Read more... (4 kB) If you choose to use this module, I recommend you carefully read the documentation for the JSON::Path and JSONPath - XPath for JSON.	[reply] [d/l] [select]