SDK of the LINE BOT API Trial for .NET
line-bot-sdk-dotnet is available as a NuGet package. You can install it using the NuGet Package Console window:
PM> Install-Package LineBot
var client = new LineBot.Client(<Channel Id>, <Channel Secret>, <MID>);Send a text message, image, video, audio, location, or sticker to the mids.
// send text
var res = await client.SendText("<target user's MID>", "Hello, world!");
// send image
var res = await client.SendImage("<target user's MID>", "http://example.com/image.jpg", "http://example.com/image_preview.jpg");
// send video
var res = await client.SendVideo("<target user's MID>", "http://example.com/video.mp4", "http://example.com/image_preview.jpg");
// send audio
var res = await client.SendAudio("<target user's MID>", "http://example.com/audio.mp3", 2000);
// send location
var res = await client.SendLocation("<target user's MID>", "location label", "tokyo shibuya-ku", 35.661777, 139.704051);
// send sticker
var res = await client.SendSticker("<target user's MID>", 1, 1, 100);The multiple_message method allows you to use the Sending multiple messages API.
var res = client.NewMultipleMessage()
.AddText("Hello,")
.AddText("world!")
.AddImage("http://example.com/image.jpg", "http://example.com/image_preview.jpg")
.AddVideo("http://example.com/video.mp4", "http://example.com/image_preview.jpg")
.AddAudio("http://example.com/audio.mp3", 2000)
.AddLocation("Location label", "tokyo shibuya-ku", 35.61823286112982, 139.72824096679688)
.AddSticker(1, 1, 100)
.Send("<target user's MID>");The rich_message method allows you to use the Sending rich messages API.
var res = client.NewRichMessage(1040)
.SetAction("MANGA", "manga", "https://store.line.me/family/manga/en")
.SetListener("MANGA", 0, 0, 520, 520)
.SetAction("MUSIC", "music", "https://store.line.me/family/music/en")
.SetListener("MUSIC", 520, 0, 520, 520)
.Send("<target user's MID>", "https://example.com/rich-image/foo", "This is a alt text.");The following utility method allows you to easily process messages sent from the BOT API platform via a Callback URL.
client.On("https://*:8443/callback/", results =>
{
foreach (var result in results.Results)
{
var content = result.Content();
if (content.IsMessage && content.IsText)
{
var text = content.TextContent();
client.SendText(content.From, text.Text);
}
}
});You can retrieve the user profile information by specifying the mid.
client.On("https://*:8443/callback/", results =>
{
foreach (var result in results.Results)
{
var content = result.Content();
var profile = client.GetUserProfile(content.From).Result;
Console.WriteLine($"{profile.Contacts[0].DisplayName}");
}
});