Parsing JSON Files in Talend | JSON Parsing | JSON Files Parsing

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This Video demonstrated how to parse complex json objects in Talend. A JSON file is a file that stores simple data structures and objects in JavaScript Object Notation (JSON) format, which is a standard data interchange format. It is primarily used for transmitting data between a web application and a server.
Different ways can be used for parsing:
1. Xpath: Extracts the JSON data based on the XPath query.
2. JsonPath: Extracts the JSON data based on the JSONPath query. Note that it is recommended to read the data by JSONPath in order to gain better performance.
3. JsonPath without loop: Extracts the JSON data based on the JSONPath query without setting a loop node.
The component used for parsing is:
tFileInputJSON: tFileInputJSON extracts JSON data from a file, then transfers the data to a file, a database table, etc.

[@techwithazam6992]

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[@vru5696]

I have to use 2 textractjsonfields comp if there are 2 diff looping elements

[@techwithazam6992]

This Video explains Json objects parsing techniques, which are as under:
1. Xpath: Extracts the JSON data based on the XPath query.
2. JsonPath: Extracts the JSON data based on the JSONPath query. Note that it is recommended to read the data by JSONPath in order to gain better performance.
3. JsonPath without loop: Extracts the JSON data based on the JSONPath query without setting a loop node.

[@AhmadIbrahim-it6oz]

Thanks regards Mr. Azam but can you explain us how can I merge all the fields in one file?
or answer for this question in your course on udemy ?

[@thorstenahrens3438]

Thanks for your explanation, very helpfull for me *thumbsup*

[@techwithazam6992]

Glad it was helpful!

[@islemdhaha5563]

Thank you for this good tutorial

[@techwithazam6992]

You are most welcome! If you want to learn more about Talend, you can have a look on my complete Bestseller Talend Udemy Course. This course is very organized and will help you cover majority of the concepts to become a Talend Guru in very less time. Here is the link:
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[@vru5696]

So if we can't parse the data in the first place itself then we need to do it in 2 steps as per your last scenario and there is no other way for the same. Please correct me. Can you explain us how can I merge all the fields in one file?

[@rajan408]

How will you handle if the Json element is null while parsing the element.

[@rajan408]

At that time we will have path not found exception

[@gauravr2887]

Thanks for this good tutorial and Is it possible to add the schema dynamically like if we are parsing multiple files with different schema without creating metadata for each file???

[@techwithazam6992]

Possible in Talend Enterprise Version!

[@okangoelphas4576]

Thank you, how can I parse like 17gb of json file?

[@techwithazam6992]

Thanks for your comment. The best practice is to split this file into smaller files and process them accordingly. Your answer lies in this post: community.talend.com/t5/Design-and-Development/processing-large-JSON-file-error-OutOfMemory/td-p/94601
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