Avro InferAvroSchemaFromIon

Avro InferAvroSchemaFromIon

Certified

Infer an Avro schema from an ION file

Scans up to numberOfRowsToScan rows of an ION file and infers a compatible Avro schema, writing the result as an .avsc file in Kestra's internal storage. The output URI can be passed directly to IonToAvro or IonToParquet as a schema reference.

yaml
type: io.kestra.plugin.serdes.avro.InferAvroSchemaFromIon

Infer an Avro schema from an ION file

yaml
id: infer_avro_schema
namespace: company.team

tasks:
  - id: infer
    type: io.kestra.plugin.serdes.avro.InferAvroSchemaFromIon
    from: "{{ outputs.previous_task.uri }}"
    numberOfRowsToScan: 100
Installation

Our standard Docker images already include this plugin. If you use a -slim image or another setup, install it with the following command: 

kestractl plugins get io.kestra.plugin:plugin-serdes --compatible-for $KESTRA_VERSION

For kestractl, use your Kestra version with --compatible-for, or specify an exact plugin version.

For Kestra CLI, replace LATEST with a specific version or version range to pin the plugin version.

Properties

ION source file URI

Assets this task consumes as inputs or produces as outputs, for lineage tracking and the asset graph (Enterprise Edition). A flow declaring this property on a task is rejected in the open-source edition.

Definitions
assetFailureBehaviorstring
Possible Values
IGNOREFAILWARN

Asset failure behavior

Behavior applied to the task state when a declared asset fails to render, emit, or be persisted (e.g. a lock conflict): FAIL escalates it to FAILED, WARN (default) warns it if it would otherwise succeed, IGNORE leaves the state untouched.

enableAutobooleanstring

Whether to auto-register assets referenced dynamically at runtime that are not statically declared in inputs or outputs.

inputsarray

The assets consumed as inputs.

id*string
Min length1
typestring
outputs

The assets produced as outputs.

id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*string
Min length1

Custom asset type

descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
Default100

The number of rows that will be scanned; the larger the number of rows, the more precise the output schema will be

Formaturi

Avro schema file URI

More Plugins in this Category

Core Plugins and tasks
Core Plugins and tasks

Tasks that provide Kestra's built-in orchestration, I/O, and observability capabilities.

Core

109 tasks

2141 blueprints

Firecrawl
Firecrawl

Tasks that scrape and crawl websites into clean, LLM-ready content with Firecrawl.

Data

2 tasks