README
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Encoding - Standard Library
Encoding is the process or marshaling or unmarshaling data into different forms. Taking JSON string documents and convert them to values of our user defined types is a very common practice in many go programs today. Go's support for encoding is amazing and improves and gets faster with every release.
Notes
- Support for Decoding and Encoding JSON and XML are provided by the standard library.
- This package gets better and better with every release.
Links
Decode JSON Documents In Go - William Kennedy
Code Review
Unmarshal JSON documents (Go Playground)
Unmarshal JSON files (Go Playground)
Marshal a user defined type (Go Playground)
Custom Marshaler and Unmarshler (Go Playground)
Exercises
Exercise 1
Part A Create a file with an array of JSON documents that contain a user name and email address. Declare a struct type that maps to the JSON document. Using the json package, read the file and create a slice of this struct type. Display the slice.
Part B Marshal the slice into pretty print strings and display each element.
Template (Go Playground) | Answer (Go Playground)
All material is licensed under the Apache License Version 2.0, January 2004.
Directories
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Sample program to show how to unmarshal a JSON document into a user defined struct type.
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Sample program to show how to unmarshal a JSON document into a user defined struct type. |
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Sample program to show how to unmarshal a JSON document into a user defined struct type from a file.
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Sample program to show how to unmarshal a JSON document into a user defined struct type from a file. |
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Sample program to show how to marshal a user defined struct type into a string.
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Sample program to show how to marshal a user defined struct type into a string. |
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Sample program to show how write a custom Unmarshal and Marshal functions.
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Sample program to show how write a custom Unmarshal and Marshal functions. |
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exercises
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exercise1
command
Create a file with an array of JSON documents that contain a user name and email address.
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Create a file with an array of JSON documents that contain a user name and email address. |
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template1
command
Create a file with an array of JSON documents that contain a user name and email address.
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Create a file with an array of JSON documents that contain a user name and email address. |