# Shenzhen Resale Price Change Monitor

**Use case:** 

A Shenzhen resale price change monitor tracks Lianjia listings across scheduled runs and flags what actually moved: new listings, price cuts, price increases and delisted units. It runs in changes mode with its own saved state, so the first run sets a baseline and every later run reports only what changed. Useful for a standing watch on a market instead of re-checking listings by hand.

## Input

```json
{
  "startUrls": [],
  "operation": "resaleHousingList",
  "cityId": "440300",
  "maxPages": 1,
  "maxItems": 10,
  "sortBy": "houseCode",
  "sortOrder": "asc",
  "monitorMode": "changes",
  "monitorScope": "shenzhen-example-monitor",
  "includeUnchanged": false,
  "includeOpportunityScore": false,
  "proxyConfiguration": {
    "useApifyProxy": true,
    "apifyProxyGroups": [
      "RESIDENTIAL"
    ]
  }
}
```

## Output

```json
{
  "listingTitle": {
    "label": "Title",
    "format": "string"
  },
  "communityName": {
    "label": "Community",
    "format": "string"
  },
  "priceTotalDisplay": {
    "label": "Total Price",
    "format": "string"
  },
  "unitPriceDisplay": {
    "label": "Unit Price",
    "format": "string"
  },
  "area": {
    "label": "Area (㎡)",
    "format": "number"
  },
  "bedroomNum": {
    "label": "Beds",
    "format": "number"
  },
  "hallNum": {
    "label": "Halls",
    "format": "number"
  },
  "orientation": {
    "label": "Orientation",
    "format": "string"
  },
  "decoration": {
    "label": "Decoration",
    "format": "string"
  },
  "changeType": {
    "label": "Change",
    "format": "string"
  },
  "opportunityScore": {
    "label": "Opportunity Score",
    "format": "number"
  },
  "listingUrl": {
    "label": "Link",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [Lianjia Scraper: Resale Listings, Price, Community](https://apify.com/getascraper/lianjia-real-estate-scraper.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/getascraper/lianjia-real-estate-scraper.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/getascraper/lianjia-real-estate-scraper.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).