public async Task PushMessageAsync(string userId, IList <IRequestMessage> messages)
{
var req = new LineMessagePushReq()
{
To = userId
};
foreach (var message in messages)
{
switch (message)
{
case IMessage:
req.Messages.Add(message);
break;
case ITemplate template:
req.Messages.Add(new TemplateMessageBase()
{
Template = template
});
break;
case IFlex template:
req.Messages.Add(template);
break;
}
}
await MakePushRequestToLineApi(req);
}
private async Task MakePushRequestToLineApi(LineMessagePushReq req)
{
var postJson = JsonConvert.SerializeObject(req, new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore,
Formatting = Formatting.Indented,
ContractResolver = new CustomPropertyNamesContractResolver()
{
Case = IdentifierCase.Camel,
PreserveUnderscores = false,
},
Converters = { new StringEnumConverter(typeof(SnakeCaseNamingStrategy)) }
}).Replace("\"", @"""");
using var request = new HttpRequestMessage(new HttpMethod("POST"), $"{LineMessagePushApiBaseUrl}");
request.Headers.TryAddWithoutValidation("Authorization", $"Bearer {_accessToken}");
request.Content = new StringContent(postJson);
request.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");
var response = await _httpClient.SendAsync(request);
var content = await response.Content.ReadAsStringAsync();
if (response.StatusCode == HttpStatusCode.OK)
{
return;
}
throw new Exception(content);
}
public async Task PushMessageByJsonAsync(string userId, string jsonString)
{
var req = new LineMessagePushReq()
{
To = userId
};
req.Messages.Add(new FlexMessage(jsonString));
await MakePushRequestToLineApi(req);
}
public async Task PushMessageAsync(string userId, params string[] messages)
{
var req = new LineMessagePushReq {
To = userId
};
foreach (var message in messages)
{
req.Messages.Add(new TextMessage(message));
}
await MakePushRequestToLineApi(req);
}
