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Overview
Getting Started
Reference
JSON Schema GlossaryJSON Schema KeywordsLearn JSON SchemaUnderstanding JSON Schema
Conventions usedWhat is a schema?The basicsJSON Schema Reference
For implementersType-specific keywordsGeneric keywordsMedia: string-encoding non-JSON dataSchema CompositionApplying Subschemas ConditionallyDeclaring a Dialect
Structuring a complex schemaOverview
Getting Started
Reference
JSON Schema GlossaryJSON Schema KeywordsLearn JSON SchemaUnderstanding JSON Schema
Conventions usedWhat is a schema?The basicsJSON Schema Reference
For implementersType-specific keywordsGeneric keywordsMedia: string-encoding non-JSON dataSchema CompositionApplying Subschemas ConditionallyDeclaring a Dialect
Structuring a complex schemanull
When a schema specifies a type of null, it has only one acceptable value: null.
It's important to remember that in JSON, null isn't equivalent to something being absent. See Required Properties for an example.
Language-specific info:
Python
Ruby
Objective-C
Swift
In Python,
null is analogous to None.
schema{ "type": "null" }
data
null
compliant to schemadata
false
not compliant to schemadata
0
not compliant to schemadata
""
not compliant to schemadata
⠀
not compliant to schema
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