# managing missing values in json

Published articles for managing missing values in json.

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## Managing JSON Field Tags and Value Handling in Go - Ep.3

DevFeed: [Managing JSON Field Tags and Value Handling in Go - Ep.3](<https://devfeed.tech/articles/managing-json-field-tags-and-value-handling-in-go-ep-3-22265.md>)

Original publisher: [Read original article](<https://www.ardanlabs.com/blog/2024/10/json-the-fine-print-ep-3-managing-json-field-tags-and-value-handling-in-go.html>)

Published: 2024-10-31T00:00:00Z

Content type: tutorial

Language: en

Sources: [William Kennedy](<https://devfeed.tech/sources/william-kennedy.md>)

Topics: [Go Language](<https://devfeed.tech/topics/go-language.md>), [JSON](<https://devfeed.tech/topics/json.md>), [Parsing](<https://devfeed.tech/topics/parsing.md>)

Tags: [default-values-in-go-structs](<https://devfeed.tech/tags/default-values-in-go-structs.md>), [go](<https://devfeed.tech/tags/go.md>), [go-default-values](<https://devfeed.tech/tags/go-default-values.md>), [go-field-tagging-techniques](<https://devfeed.tech/tags/go-field-tagging-techniques.md>), [go-struct-mapping](<https://devfeed.tech/tags/go-struct-mapping.md>), [handling-flexible-json](<https://devfeed.tech/tags/handling-flexible-json.md>), [handling-missing-json-values](<https://devfeed.tech/tags/handling-missing-json-values.md>), [json](<https://devfeed.tech/tags/json.md>), [json-code-reliability](<https://devfeed.tech/tags/json-code-reliability.md>), [json-data-consistency](<https://devfeed.tech/tags/json-data-consistency.md>), [json-data-structures-go](<https://devfeed.tech/tags/json-data-structures-go.md>), [json-field-consistency-go](<https://devfeed.tech/tags/json-field-consistency-go.md>), [json-field-integration-in-go](<https://devfeed.tech/tags/json-field-integration-in-go.md>), [json-field-mapping](<https://devfeed.tech/tags/json-field-mapping.md>), [json-field-tagging-in-go](<https://devfeed.tech/tags/json-field-tagging-in-go.md>), [json-for-engineers](<https://devfeed.tech/tags/json-for-engineers.md>), [json-in-go](<https://devfeed.tech/tags/json-in-go.md>), [json-in-strongly-typed-languages](<https://devfeed.tech/tags/json-in-strongly-typed-languages.md>), [json-keys-to-go-fields](<https://devfeed.tech/tags/json-keys-to-go-fields.md>), [json-parsing-errors](<https://devfeed.tech/tags/json-parsing-errors.md>), [json-parsing-strategies-go](<https://devfeed.tech/tags/json-parsing-strategies-go.md>), [json-pointers-in-go](<https://devfeed.tech/tags/json-pointers-in-go.md>), [json-schema-handling](<https://devfeed.tech/tags/json-schema-handling.md>), [json-structs-in-go](<https://devfeed.tech/tags/json-structs-in-go.md>), [json-to-go-data-integration](<https://devfeed.tech/tags/json-to-go-data-integration.md>), [json-to-go-parsing](<https://devfeed.tech/tags/json-to-go-parsing.md>), [json-unmarshalling-in-go](<https://devfeed.tech/tags/json-unmarshalling-in-go.md>), [json-value-handling](<https://devfeed.tech/tags/json-value-handling.md>), [managing-missing-values-in-json](<https://devfeed.tech/tags/managing-missing-values-in-json.md>), [managing-zero-values-in-json](<https://devfeed.tech/tags/managing-zero-values-in-json.md>), [map-string-interface-json](<https://devfeed.tech/tags/map-string-interface-json.md>), [mapping-json-to-go-structs](<https://devfeed.tech/tags/mapping-json-to-go-structs.md>), [unmarshalling](<https://devfeed.tech/tags/unmarshalling.md>)

### AI overview

This episode explains how to map JSON fields to Go struct fields with tags, distinguish missing values from zero values during unmarshalling, and use pointers, maps, or default struct values to handle flexible JSON data.

### Source excerpt

Introduction: Welcome to Episode 3 of JSON for Engineers! In this episode, Miki Tebeka explores the intricacies of JSON field mapping and value handling, especially when working in strongly typed languages like Go. This session covers the practical challenges of matching JSON fields to Go struct fields, distinguishing between missing and zero values, and using default values to ensure robust JSON parsing. These strategies are crucial for engineers managing flexible JSON data structures in a language with strict type requirements.