Send-FileViaEmail.psm1
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function Send-FileViaEmail ($file, $cfg, $contentType = "application/octet-stream") { $contentBytes = [convert]::ToBase64String( [system.io.file]::readallbytes((resolve-path $file).path) ) $tokenParams = @{ "URI" = "https://login.microsoftonline.com/{0}/oauth2/v2.0/token" -f $cfg.msgraph.tenant_id "Method" = "POST" "Body" = @{ client_id = $cfg.msgraph.client_id scope = "https://graph.microsoft.com/.default" client_secret = $cfg.msgraph.client_secret grant_type = "client_credentials" } } $tokenresponse = Invoke-RestMethod @tokenParams $emailParams = @{ "URI" = "https://graph.microsoft.com/v1.0/users/{0}/sendMail" -f $cfg.mail.from "Headers" = @{ 'Content-Type' = "application\json" 'Authorization' = "Bearer {0}" -f $tokenresponse.access_token } "Method" = "POST" "ContentType" = 'application/json' "Body" = (@{ "message" = @{ "subject" = $cfg.mail.subject "attachments" = @( @{ "@odata.type" = "#microsoft.graph.fileAttachment" "name" = $file "contentType" = $contentType "contentBytes" = $contentBytes }) "toRecipients" = @( $cfg.mail.to | ForEach-Object { @{ "emailAddress" = @{"address" = $_ } } } ) } }) | ConvertTo-JSON -Depth 6 } Invoke-RestMethod @emailParams } Export-ModuleMember -Function Send-FileViaEmail |