I do like Office 365 Teams, and have actually started to use the Teams App instead of Skype :-o
If you have not played with it, do, you will love it.
Anyway, with a Team Channel, you can create an Incoming Webhook connector, that allows you send data to a channel.
In Teams, click on channel and the ellipse (…) and click on Connectors.
In the connectors list find “Incoming Webhook” and click configure.
Give the connector a name and click Create.
This will create the connector and give you it’s url. Take a copy of it.
You can then use the following PowerShell cmdlets to post to the channel:
$TeamChanneluri = "# the channel url #"
$body=@"
{
"@type": "MessageCard",
"id": "list",
"title": "-TITLE-",
"TextFormat":"xml",
"text": "You can use HTML codes like <B>bold</B> and a <P/>new line or <HR/>line"
}
"@
Invoke-RestMethod -uri $TeamChanneluri -Method Post -body $body -ContentType 'application/json'
How cool is that! What is good is that you can some standard html codes to make things look nice!
Enjoy
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