Slack.NetStandard 1.4.2

Slack.NetStandard

.NET Core NuGet package that helps with Slack interactions Available at https://www.nuget.org/packages/Slack.NetStandard

Create OAuth URL

using Slack.NetStandard.Auth;

var builder = new OAuthV2Builder("clientId")
{
    State = "stateGoesHere", 
    BotScope = "channels:read"
};
var redirectUri = builder.BuildUri();

Get OAuth Access Token from Code

using Slack.NetStandard.Auth;

var token = await OAuthV2Builder.Exchange(code,clientId,clientSecret);

Verify Incoming Request is from Slack

using Slack.NetStandard;

var verifier = new RequestVerifier(signingSecret);
var verified = Verifier.Verify(request.Headers["X-Slack-Signature"], long.Parse(request.Headers["X-Slack-Request-Timestamp"]), request.Body);

Dealing with a slash command payload

var command = new SlashCommand(payloadText);
var response = new SlashCommandMessage{
    ...
}
await command.Respond(response);

Parse Events API Body

using Slack.NetStandard.EventsApi;
using Slack.NetStandard.EventsApi.CallbackEvents;

var eventObject = JsonConvert.DeserializeObject<Event>(input.Body);

if (eventObject is EventCallback callback)
{
    switch(callback.Event)
    {
        case AppHomeOpened appHome:
            break;
        case GroupClose groupClose:
            break;

    }
}

Make Web API Call

using Slack.NetStandard;

var client = new SlackWebApiClient(accessToken);
await client.Chat.Post(postMessageRequest);