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Sending messages to Connectors and Webhooks - Teams
To send a message through your Office 365 Connector or incoming webhook, you post a JSON payload to the webhook URL. Typically this payload will be in the form of an Office 365 Connector Card. You can also use this JSON to create cards containing rich inputs, such as text entry, multi-select, or picking a date and time.
https://docs.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using
Teams: Invoke-Webrequest sending base64 string (png) to Teams
I am trying to send a base64-string which is a png to our Teams-channel which have an "Incoming Webhook" setup. The message is sent to the channel but no image is displayed and when I searched for this it seems that I can't send an image or any other type of attachment as a base64-string to Teams? Extremely new to json and consuming / using rest api in general.
https://stackoverflow.com/questions/56853198/teams-invoke-webrequest-sending-base64-string-png-to-teams
