> ## Documentation Index
> Fetch the complete documentation index at: https://docs.didit.me/llms.txt
> Use this file to discover all available pages before exploring further.

# 澳大利亚签证核验 API（DVS）：数据库核验

> 通过 Didit 身份基础设施进行澳大利亚权威数据库核验（DVS 澳大利亚签证）。按次计费，单次起价 $0.75，无合同、无最低消费。

通过 Document Verification Service (DVS) 核验输入数据。Didit 通过 `POST /v3/database-validation/` 提供该服务，便于你将提交的数据与权威数据源进行核对，并获取标准化的匹配结果。

## 覆盖范围

* **覆盖范围：** 100%\*
* **国家/地区：** 澳大利亚
* **服务 ID：** `aus_australia_visa`
* **数据领域：** 证件
* **类别：** 签证

## 输入

| 字段 | 必填 | 示例 |
| - | -: | - |
| `first_name` | 是 | `John` |
| `last_name` | 是 | `Doe` |
| `date_of_birth` | 是 | `1990-01-01` |
| `passport_number` | 是 | `SAMPLE-PASS-12345` |
| `vendor_data` | 否 | `user-1234` |

* **必填输入：** `first_name`、`last_name`、`date_of_birth`、`passport_number`
* **可选输入：** `vendor_data`
* **同意：** 必填
* **工作流可用性：** 可在工作流中使用
* **覆盖范围：** 100%\*
* **价格：** 每次成功查询 \$0.75

## 请求体参数

**issuing\_state** `string` *required* (default: AUS)

该数据库服务的 ISO 3166-1 alpha-3 国家代码。

示例：`AUS`

**services** `string` *required* (default: aus\_australia\_visa)

包含该服务 ID 的数组。固定该服务可将请求限定在此确切的数据库内。

示例：`aus_australia_visa`

**consent** `boolean` *required* (default: true)

终端用户对该服务的明确同意。

示例：`true`

**first\_name** `string` *required* (default: John)

待核验的名字。

示例：`John`

**last\_name** `string` *required* (default: Doe)

待核验的姓氏。

示例：`Doe`

**date\_of\_birth** `string` *required* (default: 1990-01-01)

出生日期，格式为 `YYYY-MM-DD`。

示例：`1990-01-01`

**passport\_number** `string` *required* (default: SAMPLE-PASS-12345)

护照号码。

示例：`SAMPLE-PASS-12345`

**vendor\_data** `string` (default: user-1234)

你为此人提供的稳定用户引用，例如你内部的用户 ID。Didit 用它将独立核验关联到同一终端用户，以减少重复检测的干扰。

示例：`user-1234`

## 输入规则与验证说明

* 按用户或证件上的原样提交上述字段。
* Didit 在调用数据库前先校验必填字段。在到达数据源查询之前即被拒绝的请求不收费。

## 调用方法

```bash cURL theme={null}
curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=AUS" \
  -F "services=aus_australia_visa" \
  -F "vendor_data=user-1234" \
  -F "consent=true" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "passport_number=SAMPLE-PASS-12345"
```

```python Python theme={null}
from didit import Didit

# Reads DIDIT_API_KEY.
client = Didit()

result = client.database_validation.validate(
    issuing_state="AUS",
    services=["aus_australia_visa"],
    consent=True,
    first_name="John",
    last_name="Doe",
    date_of_birth="1990-01-01",
    passport_number="SAMPLE-PASS-12345",
    vendor_data="user-1234",
)
print(result)
```

```javascript Node.js theme={null}
import Didit from "@didit-protocol/sdk-node";

// Reads DIDIT_API_KEY.
const didit = new Didit();

const result = await didit.databaseValidation.validate({
  issuing_state: "AUS",
  services: ["aus_australia_visa"],
  consent: true,
  first_name: "John",
  last_name: "Doe",
  date_of_birth: "1990-01-01",
  passport_number: "SAMPLE-PASS-12345",
  vendor_data: "user-1234",
});
console.log(result);
```

```go Go theme={null}
ctx := context.Background()
// Reads DIDIT_API_KEY.
client := didit.NewClient()

result, err := client.DatabaseValidation.Validate(ctx, didit.DatabaseValidationValidateParams{
	IssuingState:   "AUS",
	Services:       didit.Some([]string{"aus_australia_visa"}),
	Consent:        didit.Bool(true),
	FirstName:      didit.String("John"),
	LastName:       didit.String("Doe"),
	DateOfBirth:    didit.String("1990-01-01"),
	PassportNumber: didit.String("SAMPLE-PASS-12345"),
	VendorData:     didit.String("user-1234"),
})
if err != nil {
	log.Fatal(err)
}
fmt.Printf("%+v\n", result)
```

```java Java theme={null}
import java.time.LocalDate;
import java.util.List;
import me.didit.Didit;
import me.didit.types.DatabaseValidationValidateParams;

// Reads DIDIT_API_KEY.
Didit client = new Didit();

var result = client.databaseValidation().validate(DatabaseValidationValidateParams.builder()
        .issuingState("AUS")
        .services(List.of("aus_australia_visa"))
        .consent(true)
        .firstName("John")
        .lastName("Doe")
        .dateOfBirth(LocalDate.parse("1990-01-01"))
        .passportNumber("SAMPLE-PASS-12345")
        .vendorData("user-1234")
        .build());
System.out.println(result);
```

```php PHP theme={null}
<?php

require 'vendor/autoload.php';

use Didit\DiditClient;

// Reads DIDIT_API_KEY.
$didit = new DiditClient();

$result = $didit->databaseValidation->validate([
    'issuing_state' => 'AUS',
    'services' => ['aus_australia_visa'],
    'consent' => true,
    'first_name' => 'John',
    'last_name' => 'Doe',
    'date_of_birth' => '1990-01-01',
    'passport_number' => 'SAMPLE-PASS-12345',
    'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
```

```ruby Ruby theme={null}
require "didit"

# Reads DIDIT_API_KEY.
didit = Didit::Client.new

result = didit.database_validation.validate(
  issuing_state: "AUS",
  services: ["aus_australia_visa"],
  consent: true,
  first_name: "John",
  last_name: "Doe",
  date_of_birth: "1990-01-01",
  passport_number: "SAMPLE-PASS-12345",
  vendor_data: "user-1234"
)
puts result.to_h
```

```csharp .NET theme={null}
using System;
using System.Text.Json;
using Didit;

// Reads DIDIT_API_KEY.
using var client = new DiditClient();

var result = await client.DatabaseValidation.ValidateAsync(new DatabaseValidationValidateParams
{
    IssuingState = "AUS",
    Services = new string[] { "aus_australia_visa" },
    Consent = true,
    FirstName = "John",
    LastName = "Doe",
    DateOfBirth = "1990-01-01",
    PassportNumber = "SAMPLE-PASS-12345",
    VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
```

每次成功调用都会返回 HTTP `200`。**`outcome_code`** 字段说明实际发生的结果，例如可区分真实的生物识别不匹配（`BIOMETRIC_NO_MATCH`）与无法读取的自拍照（`BIOMETRIC_IMAGE_UNUSABLE`）。下方显示的 `status` 为该功能的默认状态；你配置的[部分匹配／不匹配操作](https://docs.didit.me/zh/core-technology/database-validation/database-validation-warnings.md)可以覆盖它。

**`MATCH`**：登记机构已确认身份，且所有被核查的字段均匹配。

```json 200 OK — MATCH theme={null}
{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "AUS",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "aus_australia_visa",
      "service_name": "DVS - Australia Visa",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "identification_number": "SAMPLE-ID-12345",
        "last_name": "Doe"
      },
      "validation": {
        "date_of_birth": "full_match",
        "full_name": "full_match",
        "identification_number": "full_match"
      }
    }
  ]
}
```

**`PARTIAL_MATCH`**：找到了证件号码，但一个或多个个人字段（通常是姓名或出生日期）未完全匹配。

```json 200 OK — PARTIAL_MATCH theme={null}
{
  "request_id": "req_01H…",
  "status": "In Review",
  "issuing_state": "AUS",
  "match_type": "partial_match",
  "validations": [
    {
      "outcome_code": "PARTIAL_MATCH",
      "service_id": "aus_australia_visa",
      "service_name": "DVS - Australia Visa",
      "source_data": {
        "date_of_birth": "1990-01-01",
        "first_name": "John",
        "identification_number": "SAMPLE-ID-12345",
        "last_name": "Doe"
      },
      "validation": {
        "date_of_birth": "full_match",
        "full_name": "no_match",
        "identification_number": "full_match"
      }
    }
  ]
}
```

**`NO_MATCH`**：登记机构未返回与提交数据匹配的记录。

```json 200 OK — NO_MATCH theme={null}
{
  "request_id": "req_01H…",
  "status": "Declined",
  "issuing_state": "AUS",
  "match_type": "no_match",
  "validations": [
    {
      "outcome_code": "NO_MATCH",
      "service_id": "aus_australia_visa",
      "service_name": "DVS - Australia Visa",
      "source_data": {
        "date_of_birth": "NO_MATCH",
        "full_name": "NO_MATCH",
        "identification_number": "NO_MATCH"
      },
      "validation": {
        "date_of_birth": "no_match",
        "full_name": "no_match",
        "identification_number": "no_match"
      }
    }
  ]
}
```

## 返回数据

`source_data` 中实际返回的字段取决于登记机构返回的内容。`aus_australia_visa` 的生成示例目前记录了以下标准化结构：

* `date_of_birth`
* `first_name`
* `identification_number`
* `last_name`

## 定价与 SLA

DVS - Australia Visa 查询仅在 Didit 从核验数据源收到确定结果时计费。

* **单次调用价格：** \$0.75 USD。
* **计费方式：** 按每次成功查询计费。登记机构无法访问、缺少必填字段或请求在到达数据源之前被拒绝时，不收取费用。
* **延迟：** 典型 p95 低于 2 秒。
* **可用性：** Didit 侧每季度 99.9%；下游数据源的可用性因国家和数据集而异。

## 继续阅读

* [澳大利亚数据库核验概览](https://docs.didit.me/api-reference/database-validation/australia.md)
* [数据库核验概览](https://docs.didit.me/zh/core-technology/database-validation/overview.md)
* [结果代码](https://docs.didit.me/zh/core-technology/database-validation/database-validation-outcome-codes.md)


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