### GET https://ezfp.cn/api.php?act=orders

Source: https://ezfp.cn/doc.html

Query a list of orders in batches.

```APIDOC
## GET https://ezfp.cn/api.php?act=orders

### Description
Retrieve a list of orders with pagination support.

### Method
GET

### Endpoint
https://ezfp.cn/api.php?act=orders

### Parameters
#### Query Parameters
- **act** (String) - Required - Fixed value: "orders"
- **pid** (Int) - Required - Merchant ID
- **key** (String) - Required - Merchant Key
- **limit** (Int) - Optional - Number of orders to return (max 50)
- **page** (Int) - Optional - Current page number

### Response
#### Success Response (200)
- **code** (Int) - Status code (1 for success)
- **msg** (String) - Response message
- **data** (Array) - List of orders
```

--------------------------------

### GET https://ezfp.cn/api.php?act=query

Source: https://ezfp.cn/doc.html

Queries merchant account information including balance and order statistics.

```APIDOC
## GET https://ezfp.cn/api.php?act=query

### Description
Retrieves detailed information about the merchant account.

### Method
GET

### Endpoint
https://ezfp.cn/api.php

### Parameters
#### Query Parameters
- **act** (String) - Required - Fixed value: 'query'
- **pid** (Int) - Required - Merchant ID
- **key** (String) - Required - Merchant secret key

### Response
#### Success Response (200)
- **code** (Int) - Status code
- **money** (String) - Merchant balance
- **orders** (Int) - Total order count
```

--------------------------------

### GET https://ezfp.cn/api.php?act=order

Source: https://ezfp.cn/doc.html

Query the details of a single order using either the system order number or the merchant order number.

```APIDOC
## GET https://ezfp.cn/api.php?act=order

### Description
Query the details of a single order. System order number (trade_no) and merchant order number (out_trade_no) are optional but at least one must be provided; if both are provided, the system order number takes precedence.

### Method
GET

### Endpoint
https://ezfp.cn/api.php?act=order

### Parameters
#### Query Parameters
- **act** (String) - Required - Fixed value: "order"
- **pid** (Int) - Required - Merchant ID
- **key** (String) - Required - Merchant Key
- **trade_no** (String) - Optional - System order number
- **out_trade_no** (String) - Optional - Merchant order number

### Response
#### Success Response (200)
- **code** (Int) - Status code (1 for success)
- **msg** (String) - Response message
- **trade_no** (String) - Ezfp order number
- **out_trade_no** (String) - Merchant order number
- **api_trade_no** (String) - Third-party order number
- **type** (String) - Payment method
- **pid** (Int) - Merchant ID
- **addtime** (String) - Order creation time
- **endtime** (String) - Transaction completion time
- **name** (String) - Product name
- **money** (String) - Product amount
- **status** (Int) - Payment status (1 for success, 0 for unpaid)
- **param** (String) - Extended parameters
- **buyer** (String) - Payer account
```

--------------------------------

### POST https://ezfp.cn/mapi.php

Source: https://ezfp.cn/doc.html

Initiates a payment from the backend and returns a payment URL, QR code, or mini-program scheme.

```APIDOC
## POST https://ezfp.cn/mapi.php

### Description
This interface is used for backend-to-backend payment requests, returning a payment URL or QR code link.

### Method
POST

### Endpoint
https://ezfp.cn/mapi.php

### Parameters
#### Request Body
- **pid** (Int) - Required - Merchant ID
- **type** (String) - Required - Payment method
- **out_trade_no** (String) - Required - Merchant order number
- **notify_url** (String) - Required - Asynchronous notification URL
- **return_url** (String) - Optional - Return URL
- **name** (String) - Required - Product name
- **money** (String) - Required - Amount
- **clientip** (String) - Required - User IP address
- **device** (String) - Optional - Device type (pc, mobile, etc.)
- **sign** (String) - Required - MD5 signature

### Response
#### Success Response (200)
- **code** (Int) - Status code (1 for success)
- **trade_no** (String) - Payment order number
- **payurl** (String) - Payment redirect URL
- **qrcode** (String) - QR code link
- **urlscheme** (String) - Mini-program scheme
```

--------------------------------

### POST https://ezfp.cn/submit.php

Source: https://ezfp.cn/doc.html

Initiates a payment via page redirection. Users are redirected to the payment gateway or a checkout page.

```APIDOC
## POST https://ezfp.cn/submit.php

### Description
This interface allows users to initiate a payment directly from the frontend using a form submission or URL redirect.

### Method
POST (Recommended) or GET

### Endpoint
https://ezfp.cn/submit.php

### Parameters
#### Query/Body Parameters
- **pid** (Int) - Required - Merchant ID
- **type** (String) - Optional - Payment method (e.g., alipay, wxpay)
- **out_trade_no** (String) - Required - Merchant order number
- **notify_url** (String) - Required - Server-side asynchronous notification URL
- **return_url** (String) - Required - Page redirection notification URL
- **name** (String) - Required - Product name
- **money** (String) - Required - Product amount (decimal, max 2 places)
- **param** (String) - Optional - Business extension parameter
- **sign** (String) - Required - MD5 signature string
- **sign_type** (String) - Required - Signature type (default: MD5)
```

--------------------------------

### POST https://ezfp.cn/api.php?act=refund

Source: https://ezfp.cn/doc.html

Submit a refund request for a specific order.

```APIDOC
## POST https://ezfp.cn/api.php?act=refund

### Description
Initiate a refund for an order. Requires the refund API to be enabled in the merchant backend. Either trade_no or out_trade_no must be provided; if both are provided, trade_no takes precedence.

### Method
POST

### Endpoint
https://ezfp.cn/api.php?act=refund

### Parameters
#### Request Body
- **pid** (Int) - Required - Merchant ID
- **key** (String) - Required - Merchant Key
- **trade_no** (String) - Optional - Ezfp order number
- **out_trade_no** (String) - Optional - Merchant order number
- **money** (String) - Required - Refund amount

### Response
#### Success Response (200)
- **code** (Int) - Status code (1 for success)
- **msg** (String) - Response message
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.