---
title: "Upload flow JSON"
method: PUT
path: "/v1/messaging/whatsapp/flows/{flowId}/json"
tags: ["WhatsApp Flows"]
---

# Upload flow JSON

`PUT /v1/messaging/whatsapp/flows/{flowId}/json`

## Request

- Base URL: `https://apihub.co.il`
- URL: `https://apihub.co.il/v1/messaging/whatsapp/flows/{flowId}/json`
- Auth: HTTP bearer

Upload or update the Flow JSON for a DRAFT flow. The Flow JSON defines all screens,
components (text inputs, dropdowns, date pickers, etc.), and navigation.

Meta validates the JSON on upload and returns any validation errors.
See: https://developers.facebook.com/docs/whatsapp/flows/reference/flowjson


**Billing:** Request; paid actions are priced in credits (see GET /v1/messaging/prices) · **Rate limit:** 60/min

## Path parameters

- `flowId` string, required: Flow ID

## Headers

- `Idempotency-Key` string
- `X-Tag` string

## Request body

- object
  - `accountId` string, required: WhatsApp account ID
  - `flow_json` union, required: The Flow JSON content. Pass as a JSON object or a JSON string.
    - object
    - string

## Response `200`

Completed

- object
  - `id` string: Execution id — stable across internal retries; use it with GET /v1/executions/{id}
  - `status` 'pending' | 'processing' | 'completed' | 'partial' | 'failed' | 'cancelled' | 'timeout'
  - `operation` string
  - `tag` string, nullable: Your X-Tag, if sent
  - `created_at` string, date-time
  - `completed_at` string, date-time, nullable
  - `output` object: Operation result (see each operation). While a Studio render is processing: `stage` (queued · transcribing · downloading · preparing · cleaning_voice · mixing_audio · rendering · finishing), `phase` (the engine's: download · prepare · voice · audio · encode · qa · upload, or null), `progress` (a percent, 0–100) and `progress_fraction` (0–1), `eta_seconds` (seconds left, never below 0) and `estimate_seconds`
    - `success` boolean
    - `validation_errors` object[]: Empty array if valid; otherwise, contains validation error details from Meta
      - `error` string
      - `message` string
      - `line_end` integer
      - `column_end` integer
      - `error_type` string
      - `line_start` integer
      - `column_start` integer
  - `error` string, nullable
  - `usage` object
    - `credits_charged` number, nullable
    - `credits_reserved` number
    - `estimated_credits` number
    - `cost_source` 'provider_reported' | 'calculated' | 'estimated' | 'null', nullable
    - `provider_usage` object, nullable: Normalised consumption, e.g. { VIDEO_SECOND: 22.4 }
  - `balance` object
    - `available` number
    - `reserved` number

## Other responses

- `400`: Invalid input
- `402`: Insufficient credits / project budget
- `404`: Resource not found (or not yours)
- `429`: Rate limited
- `503`: Service temporarily paused

---

[API](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai.md) · [All operations](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai/revisions/a8caa42835ce?raw)