Easydoc Extract

Use when tasks need EasyLink extraction API to extract structured fields from documents. Trigger for requests about POST /v1/easydoc/extract and GET /v1/easydoc/extract/{task_id}, selecting mode (easydoc-extract, easydoc-extract-flash, bl-extract, occ-extract), customizing extracted fields via json_schema, using custom prompts, and handling async polling until SUCCESS or FAILED.

EasyLink EasyDoc Extract

Overview

Use this skill to call the EasyLink async extraction API and return structured field data from documents. Always follow the same lifecycle: validate inputs, submit task, poll result, present extracted fields.

Onboarding

If user has no API key, guide first:

1. Open https://platform.easylink-ai.com
2. Register or sign in
3. Enter API key management page and create a key
4. Store as EASYLINK_API_KEY

Platform

Single platform only (CN/EasyLink):

• Base URL: https://api.easylink-ai.com
• Submit: POST /v1/easydoc/extract
• Poll: GET /v1/easydoc/extract/{task_id}
• File form field: files

Modes

Mode	Description	json_schema	prompt_cus
easydoc-extract	Universal extraction	Optional (enables closed extraction)	Optional (used when no schema)
easydoc-extract-flash	Universal extraction with bounding boxes	Required	Not supported
bl-extract	Business license (fixed fields)	Not supported	Not supported
occ-extract	Org-code certificate (fixed fields)	Not supported	Not supported

easydoc-extract has three behaviors based on parameters:

• json_schema provided → closed extraction (schema fields only)
• No schema, prompt_cus provided → prompt-driven extraction
• Neither provided → open extraction (auto-detects all key-value pairs)

Workflow

1. Validate request inputs

   • Require api-key from user input or EASYLINK_API_KEY env var.
   • Require at least one file. Validate extension against supported list.
   • Validate file size (<= 100MB).
   • Validate mode/schema/prompt combination (see Modes table).
   • If key is missing, return onboarding steps.

2. Submit async extraction task

   • POST multipart/form-data with files, mode, and optional json_schema or prompt_cus.
   • Read task_id from response.

3. Poll task status

   • GET /v1/easydoc/extract/{task_id} until terminal status.
   • Terminal: SUCCESS, ERROR, FAILED, COMPLETED, DONE
   • In-progress: PENDING, PROCESSING, RUNNING, IN_PROGRESS, QUEUED
   • Stop on terminal or timeout.

4. Normalize output

   • Keep raw response as raw.
   • Return stable envelope: task_id, status, results.
   • Each result entry contains page_number and fields (flat key→value map).

5. Handle failures predictably

   • Include task_id in error reports when available.
   • Report HTTP status and response body for API errors.
   • For failures, suggest checking file format or re-submission.

json_schema Format (universal modes only)

{
  "type": "object",
  "properties": {
    "字段名": { "type": "string" }
  }
}

Quick Commands

Open extraction (auto-detect all fields):

curl -X POST "https://api.easylink-ai.com/v1/easydoc/extract" \
  -H "api-key: $EASYLINK_API_KEY" \
  -F "files=@doc.pdf" \
  -F "mode=easydoc-extract"

Closed extraction with custom fields:

curl -X POST "https://api.easylink-ai.com/v1/easydoc/extract" \
  -H "api-key: $EASYLINK_API_KEY" \
  -F "files=@doc.pdf" \
  -F "mode=easydoc-extract" \
  -F 'json_schema={"type":"object","properties":{"姓名":{"type":"string"},"金额":{"type":"string"}}}'

Business license:

curl -X POST "https://api.easylink-ai.com/v1/easydoc/extract" \
  -H "api-key: $EASYLINK_API_KEY" \
  -F "files=@license.jpg" \
  -F "mode=bl-extract"

Org-code certificate:

curl -X POST "https://api.easylink-ai.com/v1/easydoc/extract" \
  -H "api-key: $EASYLINK_API_KEY" \
  -F "files=@cert.jpg" \
  -F "mode=occ-extract"

Poll status:

curl -X GET "https://api.easylink-ai.com/v1/easydoc/extract/{task_id}" \
  -H "api-key: $EASYLINK_API_KEY"

Bundled Python helper:

# Open extraction
python3 scripts/easydoc_extract.py --file ./doc.pdf --mode easydoc-extract

# Closed extraction with custom fields
python3 scripts/easydoc_extract.py --file ./doc.pdf --mode easydoc-extract \
  --fields "姓名" "日期" "金额" --save ./result.json

# Flash mode (returns bounding boxes, requires --fields)
python3 scripts/easydoc_extract.py --file ./doc.pdf --mode easydoc-extract-flash \
  --fields "姓名" "金额"

# Custom prompt
python3 scripts/easydoc_extract.py --file ./doc.pdf --mode easydoc-extract \
  --prompt "提取所有金额和日期"

# Business license
python3 scripts/easydoc_extract.py --file ./license.jpg --mode bl-extract

# Org-code certificate
python3 scripts/easydoc_extract.py --file ./cert.jpg --mode occ-extract

# Poll existing task only
python3 scripts/easydoc_extract.py --poll-only --task-id "b_extract_xxx"

References And Scripts

• Read references/easydoc-extract-api.md for endpoint details and error codes.
• Use scripts/easydoc_extract.py for deterministic submit and polling.
• Script default output is normalized; use --output-format raw for raw payload.

Output Contract

{
  "task_id": "string",
  "status": "SUCCESS|ERROR|PENDING|PROCESSING|FAILED|COMPLETED|DONE",
  "results": [
    {
      "page_number": 1,
      "fields": {
        "field_name": "value"
      }
    }
  ],
  "raw": {}
}