Get schema by version
GET/subjects/:subject/versions/:version
Retrieves a specific version of the schema registered under this subject.
Request
Responses
- 200
- 400
- 401
- 403
- 404
- 422
- 429
- 500
The schema.
Bad Request
Unauthorized
Forbidden
Not Found. Error code 40401 indicates subject not found. Error code 40402 indicates version not found.
Unprocessable Entity. Error code 42202 indicates an invalid version.
Rate Limit Exceeded
Response Headers
X-Request-Id
The unique identifier for the API request.
X-RateLimit-Limit
The maximum number of requests you're permitted to make per time period.
X-RateLimit-Remaining
The number of requests remaining in the current rate limit window.
X-RateLimit-Reset
The relative time in seconds until the current rate-limit window resets.
Important: This differs from Github and Twitter's same-named header which uses UTC epoch seconds. We use relative time to avoid client/server time synchronization issues.
Retry-After
The number of seconds to wait until the rate limit window resets. Only sent when the rate limit is reached.
Internal Server Error. Error code 50001 indicates a failure in the backend data store.
OpenAPI definition (YAML)
paths:
/subjects/{subject}/versions/{version}:
get:
tags:
- Subjects (v1)
description: Retrieves a specific version of the schema registered under this subject.
operationId: getSchemaByVersion
parameters:
- name: subject
in: path
description: Name of the subject
required: true
schema:
type: string
- name: version
in: path
description: Version of the schema to be returned. Valid values for versionId are between [1,2^31-1]
or the string "latest". "latest" returns the last registered schema under the specified subject.
Note that there may be a new latest schema that gets registered right after this request is
served.
required: true
schema:
type: string
- name: format
in: query
description: 'Desired output format, dependent on schema type. For AVRO schemas, valid values
are: " " (default) or "resolved". For PROTOBUF schemas, valid values are: " " (default), "ignore_extensions",
or "serialized" (The parameter does not apply to JSON schemas.)'
schema:
type: string
default: ''
- name: deleted
in: query
description: Whether to include deleted schema
schema:
type: boolean
responses:
'200':
description: The schema.
content:
application/vnd.schemaregistry.v1+json:
schema:
type: object
properties:
subject:
type: string
description: Name of the subject
example: User
version:
type: integer
description: Version number
format: int32
example: 1
id:
type: integer
description: Globally unique identifier of the schema
format: int32
example: 100001
schemaType:
type: string
description: Schema type
example: AVRO
references:
type: array
description: References to other schemas
items:
type: object
properties:
name:
type: string
description: Reference name
example: io.confluent.kafka.example.User
subject:
type: string
description: Name of the referenced subject
example: User
version:
type: integer
description: Version number of the referenced subject
format: int32
example: 1
description: Schema reference
title: SchemaReference
schema:
type: string
description: Schema definition string
example: '{"schema": "{"type": "string"}"}'
metadata:
description: User-defined metadata
nullable: true
properties:
tags:
additionalProperties:
items:
type: string
type: array
uniqueItems: true
type: object
properties:
additionalProperties:
type: string
type: object
sensitive:
items:
type: string
type: array
uniqueItems: true
type: object
title: Metadata
ruleSet:
description: Schema rule set
nullable: true
properties:
migrationRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
domainRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
type: object
title: RuleSet
schemaTags:
type: array
description: Schema tags
items:
type: object
properties:
schemaEntity:
type: object
properties:
entityPath:
type: string
entityType:
type: string
enum:
- sr_record
- sr_field
title: SchemaEntity
tags:
type: array
items:
type: string
title: SchemaTags
description: Schema
title: Schema
application/vnd.schemaregistry+json; qs=0.9:
schema:
type: object
properties:
subject:
type: string
description: Name of the subject
example: User
version:
type: integer
description: Version number
format: int32
example: 1
id:
type: integer
description: Globally unique identifier of the schema
format: int32
example: 100001
schemaType:
type: string
description: Schema type
example: AVRO
references:
type: array
description: References to other schemas
items:
type: object
properties:
name:
type: string
description: Reference name
example: io.confluent.kafka.example.User
subject:
type: string
description: Name of the referenced subject
example: User
version:
type: integer
description: Version number of the referenced subject
format: int32
example: 1
description: Schema reference
title: SchemaReference
schema:
type: string
description: Schema definition string
example: '{"schema": "{"type": "string"}"}'
metadata:
description: User-defined metadata
nullable: true
properties:
tags:
additionalProperties:
items:
type: string
type: array
uniqueItems: true
type: object
properties:
additionalProperties:
type: string
type: object
sensitive:
items:
type: string
type: array
uniqueItems: true
type: object
title: Metadata
ruleSet:
description: Schema rule set
nullable: true
properties:
migrationRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
domainRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
type: object
title: RuleSet
schemaTags:
type: array
description: Schema tags
items:
type: object
properties:
schemaEntity:
type: object
properties:
entityPath:
type: string
entityType:
type: string
enum:
- sr_record
- sr_field
title: SchemaEntity
tags:
type: array
items:
type: string
title: SchemaTags
description: Schema
title: Schema
application/json; qs=0.5:
schema:
type: object
properties:
subject:
type: string
description: Name of the subject
example: User
version:
type: integer
description: Version number
format: int32
example: 1
id:
type: integer
description: Globally unique identifier of the schema
format: int32
example: 100001
schemaType:
type: string
description: Schema type
example: AVRO
references:
type: array
description: References to other schemas
items:
type: object
properties:
name:
type: string
description: Reference name
example: io.confluent.kafka.example.User
subject:
type: string
description: Name of the referenced subject
example: User
version:
type: integer
description: Version number of the referenced subject
format: int32
example: 1
description: Schema reference
title: SchemaReference
schema:
type: string
description: Schema definition string
example: '{"schema": "{"type": "string"}"}'
metadata:
description: User-defined metadata
nullable: true
properties:
tags:
additionalProperties:
items:
type: string
type: array
uniqueItems: true
type: object
properties:
additionalProperties:
type: string
type: object
sensitive:
items:
type: string
type: array
uniqueItems: true
type: object
title: Metadata
ruleSet:
description: Schema rule set
nullable: true
properties:
migrationRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
domainRules:
items:
description: Rule
properties:
name:
description: Rule name
type: string
doc:
description: Rule doc
type: string
kind:
description: Rule kind
enum:
- TRANSFORM
- CONDITION
type: string
mode:
description: Rule mode
enum:
- UPGRADE
- DOWNGRADE
- UPDOWN
- WRITE
- READ
- WRITEREAD
type: string
type:
description: Rule type
type: string
tags:
description: The tags to which this rule applies
items:
description: The tags to which this rule applies
type: string
type: array
uniqueItems: true
params:
additionalProperties:
description: Optional params for the rule
type: string
description: Optional params for the rule
type: object
expr:
description: Rule expression
type: string
onSuccess:
description: Rule action on success
type: string
onFailure:
description: Rule action on failure
type: string
disabled:
description: Whether the rule is disabled
type: boolean
type: object
title: Rule
type: array
type: object
title: RuleSet
schemaTags:
type: array
description: Schema tags
items:
type: object
properties:
schemaEntity:
type: object
properties:
entityPath:
type: string
entityType:
type: string
enum:
- sr_record
- sr_field
title: SchemaEntity
tags:
type: array
items:
type: string
title: SchemaTags
description: Schema
title: Schema
'400':
description: Bad Request
content:
application/json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
example:
error_code: 400
message: Bad Request
'401':
description: Unauthorized
content:
application/json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
example:
error_code: 401
message: Unauthorized
'403':
description: Forbidden
content:
application/json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
example:
error_code: 403
message: Forbidden
'404':
description: Not Found. Error code 40401 indicates subject not found. Error code 40402 indicates
version not found.
content:
application/vnd.schemaregistry.v1+json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/vnd.schemaregistry+json; qs=0.9:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/json; qs=0.5:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
'422':
description: Unprocessable Entity. Error code 42202 indicates an invalid version.
content:
application/vnd.schemaregistry.v1+json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/vnd.schemaregistry+json; qs=0.9:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/json; qs=0.5:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
'429':
description: Rate Limit Exceeded
headers:
X-Request-Id:
schema:
type: string
description: The unique identifier for the API request.
X-RateLimit-Limit:
schema:
type: integer
description: The maximum number of requests you're permitted to make per time period.
X-RateLimit-Remaining:
schema:
type: integer
description: The number of requests remaining in the current rate limit window.
X-RateLimit-Reset:
schema:
type: integer
description: "The relative time in seconds until the current rate-limit window resets. \
\ \n \n**Important:** This differs from Github and Twitter's same-named header which\
\ uses UTC epoch seconds. We use relative time to avoid client/server time synchronization\
\ issues."
Retry-After:
schema:
type: integer
description: The number of seconds to wait until the rate limit window resets. Only sent
when the rate limit is reached.
'500':
description: Internal Server Error. Error code 50001 indicates a failure in the backend data
store.
content:
application/vnd.schemaregistry.v1+json:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/vnd.schemaregistry+json; qs=0.9:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
application/json; qs=0.5:
schema:
type: object
properties:
error_code:
type: integer
description: The error code
format: int32
message:
type: string
description: The error message
description: Error message of this operation
title: ErrorMessage
security:
- resource-api-key: []
- external-access-token: []
servers:
- url: https://psrc-00000.region.provider.confluent.cloud
description: Confluent Cloud Schema Registry Endpoint.