SSRS Download All History Snapshots - reporting-services

Question

Is it possible to download all the history snapshots of a report at once? Preferably as a CSV. Would save a lot time instead of clicking into each one individually and selecting save as CSV.
I only see the option to Delete

Answer 1

In PowerShell, you can loop through each snapshot and save them using this example:
<#
Description: Save SSRS Report Snapshots
#>
$sql = "
DECLARE #ReportName NVARCHAR(200) = 'Your Report Name'; --change to NULL for every snapshot
DECLARE #FileFormat NVARCHAR(50) = 'CSV'; --HTML5,PPTX,ATOM,HTML4.0,MHTML,IMAGE,EXCEL (for .xls),EXCELOPENXML (for .xlsx),WORD (for .doc),WORDOPENXML (for .docx),CSV,PDF,XML
DECLARE #FileExtn NVARCHAR(50) = 'csv';
DECLARE #ServerName NVARCHAR(100) = 'http://YourServerName';
DECLARE #DateFrom DATE = CAST(DATEADD(DAY, -1, GETDATE()) AS DATE); --change to NULL for every snapshot
DECLARE #ExportPath NVARCHAR(200) = 'C:\Temp\';
SELECT
--[ReportID] = [c].[itemid]
-- , [ReportName] = [c].[name]
-- , [ReportPath] = [c].[path]
-- , [SnaphsotDate] = FORMAT([h].[snapshotdate], 'dd-MMM-yyyy')
-- , [SnapshotDescription] = [s].[DESCRIPTION]
-- , [SnapshotEffectiveParams] = [s].[effectiveparams]
-- , [SnapshotQueryParams] = [s].[queryparams]
-- , [ScheduleName] = [sc].[name]
-- , [ScheduleNextRunTime] = CONVERT(VARCHAR(20), [sc].[nextruntime], 113)
[ExportFileName] = #ExportPath + REPLACE([c].[name], ' ', '_') + '_' + FORMAT([h].[snapshotdate], 'yyyyMMdd_HHmm') + '.' + #FileExtn
, [SnapshotUrl] =
#ServerName
+ '/ReportServer/Pages/ReportViewer.aspx?'
+ [c].[path] + '&rs:Command=Render&rs:Format='
+ #FileFormat + '&rs:Snapshot='
+ FORMAT([h].[snapshotdate], 'yyyy-MM-ddTHH:mm:ss')
FROM
[ReportServer].[dbo].[History] AS [h] WITH(NOLOCK)
INNER JOIN [ReportServer].[dbo].[SnapshotData] AS [s] WITH(NOLOCK) ON [h].[snapshotdataid] = [s].[snapshotdataid]
INNER JOIN [ReportServer].[dbo].[Catalog] AS [c] WITH(NOLOCK) ON [c].[itemid] = [h].[reportid]
INNER JOIN [ReportServer].[dbo].[ReportSchedule] AS [rs] WITH(NOLOCK) ON [rs].[reportid] = [h].[reportid]
INNER JOIN [ReportServer].[dbo].[Schedule] AS [sc] WITH(NOLOCK) ON [sc].[scheduleid] = [rs].[scheduleid]
WHERE
1=1
AND [rs].[reportaction] = 2
AND (#ReportName IS NULL OR [c].[Name] = #ReportName)
AND (#DateFrom IS NULL OR [h].[snapshotdate] >= CAST(DATEADD(DAY, -1, GETDATE()) AS DATE))
ORDER BY
[c].[name]
, [h].[snapshotdate];
;"
$server = 'YourServerName';
$dbs = 'MASTER';
$dsn = "Data Source=$server; Initial Catalog=$dbs; Integrated Security=SSPI;";
$cn = New-Object System.Data.SqlClient.SqlConnection($dsn);
#execute merge statement here with parameters
$cn = New-Object System.Data.SqlClient.SqlConnection($dsn);
$cn.Open();
$cmd = $cn.CreateCommand();
$cmd.CommandText = $sql
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $cmd
$cmd.Connection = $cn
$ds = New-Object System.Data.DataSet
$SqlAdapter.Fill($ds)
$cn.Close()
$Result = $ds.Tables[0]
Foreach ($item in $Result)
{
#Write-Host $item.name
$SnapshotUrl = $item.SnapshotUrl
$ExportFileName = $item.ExportFileName
(Invoke-WebRequest -Uri $SnapshotUrl -OutFile $ExportFileName -UseDefaultCredentials -TimeoutSec 240);
}
https://learn.microsoft.com/en-us/sql/reporting-services/url-access-parameter-reference?view=sql-server-ver15

Answer 2

Was having trouble with powershell, so thought I'd post simplified version of my rough Python solution inspired by the resource from #aduguid's answer.
import requests
from requests_negotiate_sspi import HttpNegotiateAuth
import os
def downloadFile(url, file_name, download_folder, session):
response = session.get(url, stream=True) # open the download link
file_path = os.path.join(download_folder, file_name)
with open(file_path, 'wb') as file: # create a new file with write binary mode
for chunk in response.iter_content(chunk_size=1024):
if chunk:
file.write(chunk)
# Can also use '/Reports()' for non-linked reports.
# Can also pass in 'path="<report_path>"' instead of using id numbers,
# e.g. '.../Reports(path="/cool%20reports/my%20report")/HistorySnapshots'
api_url = r'http://<server_name>/reports/api/v2.0/LinkedReports(<item_id>)/HistorySnapshots'
session = requests.session()
session.auth = HttpNegotiateAuth() # uses windows log in
response = session.get(api_url)
hs_snapshot_list = response.json()['value']
for item_dict in hs_snapshot_list:
download_url = (r'http://<server_name>/ReportServer/Pages/ReportViewer.aspx?<report_path>'
+ '&rs:Snapshot=' + item_dict['HistoryId']
+ '&rs:Format=CSV')
downloadFile(download_url, '<your_file_name>', '<your_download_folder>', session)
SSRS API Resource:
https://app.swaggerhub.com/apis/microsoft-rs/SSRS/2.0#/Reports/GetReportHistorySnapshots