public async Task InvokeAsync(HttpContext context)
{
// Only POST requests are expected.
if (context.Request.Method == "POST")
{
if (context.Request.Headers.Keys.Contains("X-Line-Signature"))
{
try
{
// Convert LINE messages to Bot Builder Activities.
var request = new HttpRequestMessage(new HttpMethod(context.Request.Method), context.Request.PathBase);
context.Request.Headers.ToList().ForEach(x => request.Headers.TryAddWithoutValidation(name: x.Key, value: x.Value));
using (Stream receiveStream = context.Request.Body)
{
using (StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8))
{
var result = readStream.ReadToEnd();
request.Content = new StringContent(result, Encoding.UTF8, "application/json");
var events = await request.GetWebhookEventsAsync(config.ChannelSecret);
LINEClient client = new LINEClient(config);
var activities = await client.ConvertToActivity(events.ToList());
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(activities.First())));
}
}
}
catch (Exception ex)
{
}
}
}
await next.Invoke(context);
}
public LINEConversation(LINEConfig config)
{
this.client = new LINEClient(config);
}