> ## 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.

# 芬兰国民身份证核验 API：数据比对

> 芬兰国民身份证：通过 Didit 身份基础设施进行权威的芬兰数据库核验。按次计费，起价 $3.50，无合同、无最低消费。

依据芬兰身份证的官方签发机构核验输入数据。Didit 通过 `POST /v3/database-validation/` 提供此服务，使您可以将提交的数据与权威数据源进行核验，并获得标准化的匹配结果。

## 覆盖范围

* **覆盖范围：** \~ 100%
* **国家/地区：** 芬兰
* **服务 ID：** `fin_national_id`
* **数据领域：** 身份信息
* **类别：** NationalIDRegistry

## 输入项

| 字段 | 是否必填 | 示例 |
| - | -: | - |
| `first_name` | 是 | `John` |
| `last_name` | 是 | `Doe` |
| `date_of_birth` | 是 | `1990-01-01` |
| `national_id` | 是 | `010190-123A` |
| `address.street_1` | 否 | `123 Sample Street` |
| `address.street_2` | 否 | `Unit 4` |
| `address.city` | 否 | `Sample City` |
| `address.region` | 否 | `Sample State` |
| `address.postal_code` | 否 | `10001` |
| `vendor_data` | 否 | `user-1234` |

* **必填输入项：** `first_name`、`last_name`、`date_of_birth`、`national_id`
* **可选输入项：** `address.street_1`、`address.street_2`、`address.city`、`address.region`、`address.postal_code`、`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 \$3.50

并非此服务接受的每份证件都带有其查询所用的标识符。若未能从证件中提取该标识符，则检查记录为 **不适用**：不会查询数据库，也不收费。对某些国家/地区而言，这类情况占真实用户的很大比例。为覆盖这些用户，还需从问卷回答、Document AI 提取字段，或您在创建会话时发送的值中收集该标识符，并将其映射到数据库核验步骤。

## 请求体参数

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

此数据库服务的 ISO 3166-1 alpha-3 国家/地区代码。

示例：`FIN`

**services** `string` *required* (default: fin\_national\_id)

包含此服务 ID 的数组。固定服务可将请求限定在此特定数据库。

示例：`fin_national_id`

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

终端用户对此服务的明确同意。

示例：`true`

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

需要验证的名字。

示例：`John`

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

需要验证的姓氏。

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`

**national\_id** `string` *required* (default: 010190-123A)

此服务所需的国民身份号码。

示例：`010190-123A`

**address** `object`

结构化住宅地址对象。请使用 `street_1`、`street_2`、`city`、`region`、`postal_code` 和 `country`。仍然接受完整的旧式地址字符串，但不推荐使用。

示例：`{"street_1":"123 Sample Street","street_2":"Unit 4","city":"Sample City","region":"Sample State","postal_code":"10001","country":"US"}`

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

您为该人员提供的稳定用户引用，例如内部用户 ID。Didit 使用它将独立检查关联到同一终端用户，并减少重复检测的干扰。

示例：`user-1234`

## 输入规则与验证说明

* 此服务的 `address` 为可选项。您可以发送一个完整的 `address` 字符串，Didit 会在可能时将其拆分为结构化地址元素；您也可以显式发送结构化字段。
* `national_id` 必须匹配 `(?:\d{6}[-+A]\d{3}[0-9A-Z]|\d{6}\d{3}[0-9A-Z])`。
* 对于地址类服务，应尽可能发送结构化地址字段，而不是单个 `address` 字符串。
* `address.street_1` 为街道地址，包括门牌号和街道类型。
* `address.street_2` 为公寓、单元、楼栋、楼层或其他附加地址行。仅在您有此信息时发送。
* `address.city` 为城市、郊区、区、地区或街区。
* `address.region` 为州、省、地区或城镇。
* `address.postal_code` 为邮政编码。
* 基于地址的数据库服务至少需要街道地址和邮政编码；在查询数据源之前被拒绝的请求不收费。

## 如何调用

```bash cURL theme={null}
curl -X POST "https://verification.didit.me/v3/database-validation/" \
  -H "x-api-key: YOUR_API_KEY" \
  -F "issuing_state=FIN" \
  -F "services=fin_national_id" \
  -F "vendor_data=user-1234" \
  -F "consent=true" \
  -F "first_name=John" \
  -F "last_name=Doe" \
  -F "date_of_birth=1990-01-01" \
  -F "national_id=010190-123A"
```

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

# Reads DIDIT_API_KEY.
client = Didit()

result = client.database_validation.validate(
    issuing_state="FIN",
    services=["fin_national_id"],
    consent=True,
    first_name="John",
    last_name="Doe",
    date_of_birth="1990-01-01",
    national_id="010190-123A",
    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: "FIN",
  services: ["fin_national_id"],
  consent: true,
  first_name: "John",
  last_name: "Doe",
  date_of_birth: "1990-01-01",
  national_id: "010190-123A",
  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: "FIN",
	Services:     didit.Some([]string{"fin_national_id"}),
	Consent:      didit.Bool(true),
	FirstName:    didit.String("John"),
	LastName:     didit.String("Doe"),
	DateOfBirth:  didit.String("1990-01-01"),
	NationalID:   didit.String("010190-123A"),
	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("FIN")
        .services(List.of("fin_national_id"))
        .consent(true)
        .firstName("John")
        .lastName("Doe")
        .dateOfBirth(LocalDate.parse("1990-01-01"))
        .nationalId("010190-123A")
        .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 = $didit->databaseValidation->validate([
    'issuing_state' => 'FIN',
    'services' => ['fin_national_id'],
    'consent' => true,
    'first_name' => 'John',
    'last_name' => 'Doe',
    'date_of_birth' => '1990-01-01',
    'national_id' => '010190-123A',
    'vendor_data' => 'user-1234',
]);
print_r($result->toArray());
```

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

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

result = didit.database_validation.validate(
  issuing_state: "FIN",
  services: ["fin_national_id"],
  consent: true,
  first_name: "John",
  last_name: "Doe",
  date_of_birth: "1990-01-01",
  national_id: "010190-123A",
  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 = "FIN",
    Services = new string[] { "fin_national_id" },
    Consent = true,
    FirstName = "John",
    LastName = "Doe",
    DateOfBirth = "1990-01-01",
    NationalId = "010190-123A",
    VendorData = "user-1234",
});
Console.WriteLine(JsonSerializer.Serialize(result));
```

每次成功调用都会返回 HTTP `200`。**`outcome_code`** 字段会告诉您实际发生了什么，例如可以区分真正的生物识别不匹配（`BIOMETRIC_NO_MATCH`）和无法读取的自拍照（`BIOMETRIC_IMAGE_UNUSABLE`）。所示的 `status` 是默认功能状态；您配置的[部分匹配 / 无匹配操作](https://docs.didit.me/zh/core-technology/database-validation/database-validation-warnings.md)可以覆盖它。

**`MATCH`**：登记机构确认了身份，且所有核查字段均匹配。

```json 200 OK — MATCH theme={null}
{
  "request_id": "req_01H…",
  "status": "Approved",
  "issuing_state": "FIN",
  "match_type": "full_match",
  "validations": [
    {
      "outcome_code": "MATCH",
      "service_id": "fin_national_id",
      "service_name": "Finland National ID",
      "source_data": {
        "address": "123 Sample Street",
        "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`**：已找到证件号码，但一个或多个个人信息字段（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": "FIN",
  "match_type": "partial_match",
  "validations": [
    {
      "outcome_code": "PARTIAL_MATCH",
      "service_id": "fin_national_id",
      "service_name": "Finland National ID",
      "source_data": {
        "address": "123 Sample Street",
        "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`**：登记机构未返回与所提交数据匹配的结果。

```json 200 OK — NO_MATCH theme={null}
{
  "request_id": "req_01H…",
  "status": "Declined",
  "issuing_state": "FIN",
  "match_type": "no_match",
  "validations": [
    {
      "outcome_code": "NO_MATCH",
      "service_id": "fin_national_id",
      "service_name": "Finland National ID",
      "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。自动生成的 `fin_national_id` 示例目前记录了以下标准化结构：

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

## 定价与 SLA

仅当 Didit 从验证来源收到明确结果时，才对芬兰国民身份证查询计费。

* **单次调用价格：** \$3.50 USD。
* **计费方式：** 按每次成功查询计费。如果登记机构无法访问、缺少必填字段，或请求在到达来源之前被拒绝，则不收费。
* **延迟：** 典型 p95 延迟低于 2 秒。
* **可用性：** Didit 一侧每季度 99.9%；下游来源的可用性因国家和数据集而异。

## 延伸阅读

* [芬兰数据库核验概述](https://docs.didit.me/api-reference/database-validation/finland.md)
* [数据库核验概述](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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