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Serialization JsonToJsonl

Serialization JsonToJsonl

Certified

Convert a JSON file to JSONL

Uses a streaming parser to avoid loading the full file into memory. Accepts a JSON array or a sequence of JSON objects. Useful for splitting a JSON array before passing data to ForEachItem.

yaml
type: io.kestra.plugin.serdes.json.JsonToJsonl

Convert a JSON array from an API to JSONL format for iteration.

yaml
id: parent_json_processing
namespace: company.team
description: Parent flow that distributes work to subflows

tasks:
  - id: download
    type: io.kestra.plugin.core.http.Download
    uri: "https://api.restful-api.dev/objects"
    contentType: application/json
    method: GET
    failOnEmptyResponse: true
    timeout: PT15S

  - id: json_to_jsonl
    type: io.kestra.plugin.serdes.json.JsonToJsonl
    from: "{{ outputs.download.uri }}"

  - id: for_each_item
    type: io.kestra.plugin.core.flow.ForEachItem
    items: "{{ outputs.json_to_jsonl.uri }}"
    batch:
      rows: 1
    namespace: company.team
    flowId: child_process_item
    wait: true
    transmitFailed: true
    inputs:
      item_data: "{{ taskrun.items }}"
Properties

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
DefaultUTF-8

The name of a supported charset

The character set to use for reading and writing the file.

Default0

The number of records converted

Formaturi

URI of the generated JSONL file in Kestra's internal storage

Number of records converted

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