如何为我的 httpClient.GetFromJsonAsync<T> 调用全局设置 JsonSerializerOptions

Question

在我的 ASP.NET Web API 中，我有

httpClient

，它调用

GetFromJsonAsync

:

    var jsonSerializerOptions = new JsonSerializerOptions
    {
        PropertyNameCaseInsensitive = true,
    };
    jsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());    
    await httpClient.GetFromJsonAsync<Item[]>(uri, jsonSerializerOptions);

在我的所有 GetFromJsonAsync 调用中添加 jsonSerializerOptions 参数是相当重复的，即使我注入它也是如此。

// I tried this without success
builder.Services
    .ConfigureHttpJsonOptions(x => x.SerializerOptions.Converters.Add(new JsonStringEnumConverter()))
    .Configure<JsonSerializerOptions>(x => x.Converters.Add(new JsonStringEnumConverter()))
    .AddJsonOptions(x => x.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()));

// no need to specify the jsonSerializerOptions because it should be configured for this httpClient
await httpClient.GetFromJsonAsync<Item[]>(uri);

有没有办法一次性为每个 httpClient 配置它？

Answer 1

你可以尝试为httpclient创建一个扩展类，然后所有的httpclient都会应用这个选项。

    public static class HttpClientExtensions
    {
        public static JsonSerializerOptions _jsonSerializerOptions = new JsonSerializerOptions
        {
            PropertyNameCaseInsensitive = true,
 
        };

        public static async Task<T> GetFromJsonAsync<T>(this HttpClient httpClient, string requestUri)
        {
            var response = await httpClient.GetStringAsync(requestUri);
            return JsonSerializer.Deserialize<T>(response, _jsonSerializerOptions);
        }
    }