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README
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Provides a simple .Net client for using Slack's Incoming Webhooks URL's to send messages to a slack channel of your choosing.
The Webhooks API is pretty simple, but it always preferable to have a typed interface to use rather than an untyped (and undocumented) JSON object. So using this library should make it simpler to build a slack message and send it using a webhook URL.
See changelog for version history.
Example
Foo
How to use
First install the nuget package:
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PM> Install-Package SlackWebhook
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Next simply use the SlackClient class to send a message:
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await new SlackClient(webhookUrl).SendAsync(b => b
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    .WithUsername("Slack Bot Name")
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    .WithIcon(IconType.Url, "http://my.host/bot_icon.png")
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    .WithText("Something very interesting just happened")
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);
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How to obtain Incoming Webhook URL
In the above example i used the webhookUrl which you obtain by adding the Incoming WebHooks app configuration to the channel you want to send messages to (each url is tied to a specific channel, so if you want to sent to different channels, just add multiple configurations).
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Open slack.com/services/new/incoming-webhook​
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Under Post to Channel select the channel you want to send to
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Press Add Incoming WebHooks integration
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Now copy the Webhook URL
What is supported?
Besides the message, the Slack hook also allows attachments which are pretty neat. In the above example I used a few attachments and fields to illustrate some of the uses. Especially the attachment fields are a good way to include extra detail in a table-like structure (by setting short flag on field, two fields will be shown in the attachment side-by-side for each row).
My example was generated by this code:
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await new SlackClient(webhookUrl).SendAsync(b => b
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    .WithText("Hello from *SlackWebhook*")
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    .WithUsername("SlackWebhook")
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    .WithIcon(IconType.Url, "https://raw.githubusercontent.com/micdah/SlackWebhook/master/icon.png")
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    .WithAttachment(a => a
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        .WithTitle("How to install")
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        .WithText("`PM> Install-Package SlackWebhook`")
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        .WithColor(Color.DarkSlateBlue))
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    .WithAttachment(a => a
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        .WithTitle("Find out more")
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        .WithText("Find out more by taking a look at github.com/micdah/SlackWebhook")
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        .WithLink("https://github.com/micdah/SlackWebhook")
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        .WithField(
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            "Use builder pattern",
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            "```\n" +
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            "await slackClient.SendASync(b => b\n" +
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            "   .WithUsername(\"My Bot\")\n" +
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            "   .WithText(\"Hello *World*\"));\n" +
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            "```")
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        .WithField(
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            "Use object initializer",
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            "```\n" +
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            "await slackClient.SendAsync(new SlackMessage {\n" +
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            "   Username = \"My Bot\",\n" +
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            "   Text = \"Hello *World*\"\n" +
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            "});\n" +
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            "```")));
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Documentation
You can find the documentation in SlackWebhook, of particular interest are these:
​ISlackClient: 
Interface of the SlackClient implementation used to send message
​ISlackMessageBuilder:
Inteface of the message builder used to configure your message
​ISlackAttachmentBuilder:
Interface of the attachment builder used to configure attachments added to your message
Changelog
Last modified 3yr ago
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Contents
Example
How to use
How to obtain Incoming Webhook URL
What is supported?
Documentation