Argo Data Task Quick Fix - Data Processing Template

Argo Workflows data templates Process and transform data within workflows using built-in operations. Incorrect data expressions cause transformation errors or wrong results. This guide covers the fix.

Quick Fix

Wrong

- name: transform
  data:
    source:
      artifacts:
      - name: input
        path: /data/input.json
    transformations:
    - map:
        expression: "item.key * 2"

The issue: expression references item.key but the artifact may contain an array of primitives, not objects. The transformation processes wrong data structure.

Right

- name: transform
  data:
    source:
      artifacts:
      - name: input
        path: /data/input.json
    transformations:
    - map:
        expression: "parseInt(string(item)) * 2"

# Expected output after applying the fix
# Input: [1, 2, 3, 4, 5]
# Output: [2, 4, 6, 8, 10]
# Data transformation applied correctly
# Result stored in {{steps.transform.outputs.result}}

Prevention

• Match transformation expressions to the data structure type
• Use parseInt, parseFloat, string for type conversion in expressions
• Chain transformations (map, filter, sort) for complex data processing
• Validate expressions with argo template lint
• Test data transformations on sample data before workflow deployment

DodaTech Tools

Doda Browser's data task visualizer shows transformation steps and output previews. DodaZIP archives transformed data for audit trails. Durga Antivirus Pro validates transformation logic against injection patterns.

FAQ