如何在ASP.NET Core 6中传递GraphQL的content-language:ar请求头

你可以通过两种方式添加Content-Language: ar请求头，根据需求选择：

方法一：给GraphQL客户端添加全局默认请求头 #

如果所有GraphQL请求都需要携带这个头，创建GraphQLHttpClient实例后，直接操作其内部的HttpClient添加默认请求头：

var client = new GraphQLHttpClient(options, new NewtonsoftJsonSerializer());
// 添加全局默认请求头
client.HttpClient.DefaultRequestHeaders.Add("Content-Language", "ar");

或者在配置GraphQLHttpClientOptions时，通过ConfigureHttpClient提前设置：

var options = new GraphQLHttpClientOptions
{
    EndPoint = new Uri("https://EndPoint/graphql"),
    ConfigureHttpClient = (httpClient) =>
    {
        httpClient.DefaultRequestHeaders.Add("Content-Language", "ar");
    }
};

方法二：给单个GraphQL请求添加请求头 #

如果只有这个Tracking接口的请求需要携带该头，直接在GraphQLRequest对象中设置Headers属性：

var request = new GraphQLRequest
{
    Query = query,
    // 给当前请求单独添加请求头
    Headers = new Dictionary<string, string>
    {
        { "Content-Language", "ar" }
    }
};

额外优化建议 #

你当前直接将code变量拼接到GraphQL查询字符串中，存在注入风险。建议改用GraphQL变量传递参数，示例如下：

// 使用变量定义查询
var query = @"
query($code: String!) {
    shipment(code: $code) {
        id
        code
        customerDue
        createdAt
        collected
        paidToCustomer
        paidToDeliveryAgent
    }
}";

var request = new GraphQLRequest
{
    Query = query,
    Variables = new { code = code }, // 传递变量
    Headers = new Dictionary<string, string>
    {
        { "Content-Language", "ar" }
    }
};

内容的提问来源于stack exchange，提问作者عالم ديم