#=============
$ssrs_web="http://localhost/PBI"
[String]$srch="local"

[String]$ssrs_api=$ssrs_web+"/api/v2.0/Reports"
$tbl=New-Object System.Data.DataTable;$tbl.Columns.AddRange(@("Report","DataSource","ConnectionString","ReportId"))>$null
foreach($r in(Invoke-RestMethod -Uri $ssrs_api -UseDefaultCredentials).value|?{$_.HasDataSources -eq $true})
{foreach($ds in(Invoke-RestMethod -Uri ($ssrs_api+"("+$r.Id+")/DataSources") -UseDefaultCredentials))
{foreach($sr in $ds.value|?{$_.ConnectionString -ne $null -and $_.ConnectionString -like ("*"+$srch+"*")})
{$tbl.Rows.Add($r.Path,$sr.Name,$sr.ConnectionString,$r.Id)>$null}}}
$tbl|ft
#=============

#=============
$ssrs_web="http://localhost/PBI"
$download_dir="c:\tst\ssrs_id\in"

$ssrs_api=$ssrs_web+"/api/v2.0/Reports"
if((Test-Path $download_dir) -eq $false){New-Item -ItemType Directory -Force -Path $download_dir | Out-Null}
foreach($r in(Invoke-RestMethod -Uri $ssrs_api -UseDefaultCredentials).value|?{$_.Type -eq "Report"})
{Invoke-RestMethod -Uri ($ssrs_api+"("+$r.ID+")/Content/"+'$value') -UseDefaultCredentials -OutFile ($download_dir+"\"+$r.id)}
#=============

#=============
$ssrs_web="http://localhost/PBI"
$download_dir="c:\tst\ssrs_id\dr"

$ssrs_api=$ssrs_web+"/api/v2.0/Reports"
foreach($r in(Invoke-RestMethod -Uri $ssrs_api -UseDefaultCredentials).value)
{$dr=$download_dir+$r.Path.Substring(0,$r.Path.LastIndexOf("/")).Replace("/","\")
if((Test-Path $dr) -eq $false){New-Item -ItemType Directory -Force -Path $dr | Out-Null}
Invoke-RestMethod -Uri ($ssrs_api+"("+$r.ID+")/Content/"+'$value') -UseDefaultCredentials -OutFile ($download_dir+$r.Path.Replace("/","\")+".rdl")}
#=============

#=============
$ssrs_web="http://localhost/PBI"
$rdl_name="my_report_test1"

$ssrs_api=$ssrs_web+"/api/v2.0/Reports"
$my_rdl = "C:\tst\ssrs_id\in\8d6dc5eb-8f7a-496a-bebb-798e356dc2b1"
$web_rdl=@{
    "@odata.type"="#Model.Report";
    "Content"=[System.Convert]::ToBase64String([System.IO.File]::ReadAllBytes($my_rdl));
    "ContentType"="";
    "Name" = $rdl_name;
    "Path" = '/';
    }|ConvertTo-Json
Invoke-RestMethod -Uri $ssrs_api -Method Post -Body $web_rdl  -ContentType "application/json" -UseDefaultCredentials
#=============