向WhatsApp Cloud添加模板示例映像
向WhatsApp Cloud添加模板示例映像
提问于 2022-09-26 10:58:24
日安
我正在尝试使用C#云API在WhatsApp中创建一个带有媒体头的模板，如下所述：可恢复上传API。现在，每当我创建模板时，都会返回一个错误：文件类型不支持。
我已经在网上搜索了其他开发人员的例子，他们都经历过同样的事情，但是没有人发现解决了我的问题。我已经遵循了这两篇文章中的建议/解决方案，但仍然很幸运：
My Steps:
- 我成功地创建了一个会话。
- 我使用返回的sessionId上传媒体，也没有问题。
- 然后我尝试使用返回的句柄创建模板(在步骤2中)。此步骤返回不支持的文件类型错误。
代码：
创建会话
// Create the session
var sessionId = "";
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{appId}/uploads"))
{
request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + _accessToken);
request.Headers.TryAddWithoutValidation("Content-Type", "application/json");
request.Content = new StringContent("{\"file_length\":\"16384\",\"file_type\":\"image/png\",\"file_name\":\"test.png\"}");
var response = await httpClient.SendAsync(request);
var responseContent = response.Content.ReadAsStringAsync().Result;
var result = System.Text.Json.JsonSerializer.Deserialize<SessionResponse>(responseContent);
sessionId = result.id;
}
}上传媒体
var handle = "";
var dataBinary = System.IO.File.ReadAllBytes(@"C:\Temp\IMAGES\test.png");
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{sessionId}"))
{
request.Headers.TryAddWithoutValidation("Authorization", "OAuth " + _accessToken);
request.Headers.TryAddWithoutValidation("file_offset", "0");
request.Headers.TryAddWithoutValidation("Content-Type", "multipart/form-data");
var multipartContent = new MultipartFormDataContent();
multipartContent.Add(new ByteArrayContent(dataBinary));
request.Content = multipartContent;
var response = await httpClient.SendAsync(request);
var responseContent = response.Content.ReadAsStringAsync().Result;
var result = System.Text.Json.JsonSerializer.Deserialize<MediaUploadSessionResponse>(responseContent);
handle = result.h;
}
}创建模板
jsonData：(本例中未添加完整句柄)
{
"name":"template_media",
"components":[
{
"type":"HEADER",
"format":"IMAGE",
"example":{
"header_handle":[
"4:::ARaVEoRalHjf9hIFnYJb2O9I6BJeHNoonwkB...."
]
}
},
{
"type":"BODY",
"text":"Please find media attached as requested."
}
],
"language":"en_US",
"category":"TRANSACTIONAL"
}请求：
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{_businessAccountID}/message_templates"))
{
request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + _accessToken);
request.Content = new StringContent(jsonData);
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
var response = await httpClient.SendAsync(request);
var responseContent = response.Content.ReadAsStringAsync().Result;
}
}返回的错误(不支持文件类型)：
{
"error": {
"message": "Invalid parameter",
"type": "OAuthException",
"code": 100,
"error_subcode": 2388084,
"is_transient": false,
"error_user_title": "File Type Not Supported",
"error_user_msg": "The type of file is not supported.",
"fbtrace_id": "AZalksSZjALNaBLXiiJzgZw"
}
}帮帮忙，谢谢。
回答 1
Stack Overflow用户
回答已采纳
发布于 2022-09-27 06:28:34
我找到了解决办法，希望这能帮助其他人解决同样的问题。
我没有向请求中添加“内容类型”标题，而是在request.Content，上添加了它们，例如：request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
我还将MultipartFormDataContent更改为带有内容头application/x-www-form-urlencoded的ByteArrayContent。
有关对我有用的完整代码示例，请参见下面的内容。
创建会话
var sessionId = "";
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{appId}/uploads"))
{
request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + _accessToken);
request.Content = new StringContent("{\"file_length\":\"16384\",\"file_type\":\"image/png\",\"file_name\":\"test.png\"}");
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
var response = await httpClient.SendAsync(request);
if (!response.IsSuccessStatusCode)
return null;
var responseContent = response.Content.ReadAsStringAsync().Result;
var result = System.Text.Json.JsonSerializer.Deserialize<SessionResponse>(responseContent);
sessionId = result.id;
}
}上传媒体
var handle = "";
var dataBinary = System.IO.File.ReadAllBytes(@"C:\Temp\IMAGES\test.png");
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{sessionId}"))
{
request.Headers.TryAddWithoutValidation("Authorization", "OAuth " + _accessToken);
request.Headers.TryAddWithoutValidation("file_offset", "0");
request.Content = new ByteArrayContent(dataBinary);
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/x-www-form-urlencoded");
var response = await httpClient.SendAsync(request);
if (!response.IsSuccessStatusCode)
return null;
var responseContent = response.Content.ReadAsStringAsync().Result;
var result = System.Text.Json.JsonSerializer.Deserialize<MediaUploadSessionResponse>(responseContent);
handle = result.h;
}
}创建模板
jsonData：(本例中未添加完整句柄)
{
"name":"template_media",
"components":[
{
"type":"HEADER",
"format":"IMAGE",
"example":{
"header_handle":[
"4:::ARaVEoRalHjf9hIFnYJb2O9I6BJeHNoonwkB...."
]
}
},
{
"type":"BODY",
"text":"Please find media attached as requested."
}
],
"language":"en_US",
"category":"TRANSACTIONAL"
}请求
var responseContent = string.empty;
using (var httpClient = new HttpClient())
{
using (var request = new HttpRequestMessage(new HttpMethod("POST"), $"https://graph.facebook.com/v14.0/{_businessAccountID}/message_templates"))
{
request.Headers.TryAddWithoutValidation("Authorization", "Bearer " + _accessToken);
request.Content = new StringContent(jsonData);
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
var response = await httpClient.SendAsync(request);
if (!response.IsSuccessStatusCode)
return null;
responseContent = response.Content.ReadAsStringAsync().Result;
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/73853167
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