【HttpClient】调用QQ小程序安全内容检测接口

前言

QQ小程序内容安全-图片检测

https://q.qq.com/wiki/develop/miniprogram/server/open_port/port_safe.html

调用接口的代码

此处仅贴出核心调用的代码，IFormFile对象由Controller中传递，access_token需要自己去获取，HttpClient需要自己去注入

        private readonly HttpClient _client;
        public async Task<string> GetQQImgSecCheck(string access_token, IFormFile file)
        {
            string r = string.Empty;

            string url = "https://api.q.qq.com/api/json/security/ImgSecCheck?access_token=" + access_token;
            using (Stream fs = file.OpenReadStream())
            {
                //文件生成的字节数组
                byte[] fileBytes = new byte[fs.Length];
                fs.Read(fileBytes, 0, fileBytes.Length);

                //ByteArray内容，需要重新对Header中的ContentType和ContentDisposition赋值
                var byteFileContent = new ByteArrayContent(fileBytes);
                byteFileContent.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
                byteFileContent.Headers.ContentDisposition = ContentDispositionHeaderValue.Parse($"form-data; name=\"media\"; filename=\"{file.FileName}\"");

                //使用MultipartFormDataContent对象，对应为Content-Type = form-data
                MultipartFormDataContent content = new MultipartFormDataContent();
                content.Add(byteFileContent, "media", file.FileName);

                HttpResponseMessage response = await _client.PostAsync(url, content);

                if (response.IsSuccessStatusCode)
                    r = await response.Content.ReadAsStringAsync();
            }

            return r;
        }