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RED Enablement Packs : WhereScape Source Enablement Pack - Google Drive

Created by Poonam More, last modified on Jun 10, 2022
This is a guide for installing Source Enablement Packs for WhereScape RED 8.6.1.x

Prerequisites

Python 3.8 or higher
- Download python installer from {+}https://www.python.org/downloads/+^{Image Removed}^{Image Added}
- Select "Add Python 3.8 to PATH" from installation Window
PIP Manager
- From Command Prompt (Run As Administrator) run command:

...

Google Drive
- Enable Google API and setup from {+}https://console.cloud.google.com/home/dashboard+^{Image Removed}^{Image Added} NOTE: Refer to section Google Drive API Connection Steps below for more details.
- Download authentication file credentials.json
- Install Google API packages:

Google API Packages
pip install --upgrade google-api-python-client google-auth-httplib2 google-auth-oauthlib
pip install google-api-python-client
pip install --upgrade google-api-python-client oauth2client
NOTE:Use 64-bit powershell terminal

Source Enablement Pack Setup Scripts

The Enablement Pack Install process is entirely driven by scripts. The below table outlines these scripts, their purpose and if "Run as Administrator" is required.

#	Enablement Pack Setup Scripts	Script Purpose	Run as Admin	Intended Application
1	install_Source_Enablement_Pack.ps1	Install Python scripts and UI Config Files for browsing files from Amazon S3, Azure Data Lake Gen2,Google Drive	Yes	New and Existing installations

Powershell script above provides some help at the command line, this can be output by passing the "-help" parameter to the script.
NOTE: Note that on some systems executing Windows Powershell scripts is disabled by default, see troubleshooting for workarounds.

Source Enablement Pack Installation

Run Windows Powershell as Administrator

...

If prompted enter source enablement pack as 'Google' Note: Skip the installation step if the target build with source packs is installed.

Google Drive Connection Setup

Login to RED
Check in Host Script Browse_Google_Drive in objects list.
Check UI Configurations in Menu, Tools → UI Configurations → Maintain UI Configurations
Create new connection in RED
Select properties as shown in below screenshot

...

Files with extension .dat are read as a single column because google drive reads .dat files as application/octet-stream file type
Folders present in Google Drive must have unique names. Example: "REDFolder" and "REDFolder1" similar folder name should be avoided
Files which are deleted from 'Google Drive Folders' are still browsable. To avoid such files, delete them from 'Bin\Trash' as well.
Sometimes, it might take 2-5 minutes for files or directories that were recently added/uploaded to 'Google Drive' to be browse.

Google Drive API Setup Steps - Optional

These steps are for google API connection setup.If the API is already set and credentials.json is ready then these steps are not required.

Visit this URL: {+}https://console.cloud.google.com/home/dashboard+^{Image Removed}^{Image Added} and Click on 'Select a project' → 'New Project'
Enter project name and click on 'Create'
Go to 'APIs & Services' and then to 'Library'
Search for "Drive API" and click on 'Enable'
Click on 'Credentials' on left and then click on '+ CREATE CREDENTIALS' and select 'OAuth client ID'
Click on 'CONFIGURE CONSENT SCREEN' and select 'User Type' as 'External'
In 'App Information' add App name, User support email (current email), and Developer Contact info (current email)
In 'Scope Section' click on 'ADD OR REMOVE SCOPES'
Search for 'Drive' and select "{+}https://www.googleapis.com/auth/drive+^{Image Removed}^{Image Added}" scope
Click on check-box next to selected scope and click update
Click on 'SAVE AND CONTINUE'
In "Test Users Section", click on "+ ADD USERS"
Add Users who can connect with these APIs. Note: Users who are listed here can only log in and browse files. Maximum 100 users can be added. This section can be edited anytime.
Click on 'Save and Continue'
Go back to 'Credentials' and click on '+ CREATE CREDENTIALS' and select 'OAuth client ID'
Select 'Application type' as "Desktop app" and enter name, example: 'Gdrive_RED'
In 'Credentials Section' under "OAuth 2.0 Client IDs" verify the auth app which was just created and press download button which is at end of that row.
Save this file with name "credentials" ONLY
Save the 'credentials.json' file in a folder.
Login to RED and create Google drive connection as mentioned in the above section Google Drive Connection Setup
Right click and browse the connection.
It will be directed to default browser, select 'Google Id' which you want to connect with drive.
On "Google hasn't verified this app" screen, click 'Continue'
Click "Allow" to grant necessary permission.
A success message will be displayed on both, browser and RED. Close browser windows and browse connection again in RED.

Troubleshooting and Tips

Run As Administrator

Press the Windows Key on your keyboard and start typing cmd.exe, when the cmd.exe icon shows up in the search list right click it to bring up the context menu, select "Run As Administrator"
Now you have an admin prompt navigate to to the folder where you have unpacked your WhereScape Source Enablement Pack to using the 'cd' command:
C:\Windows\system32> cd <full path to the unpacked folder>
Run Powershell (.ps1) scripts from the administrator prompt by typing the Powershell run script command, for example:
C:\temp\EnablementPack>Powershell -ExecutionPolicy Bypass -File .\install_Source_Enablement_Pack.ps1
NOTE: In the event you can not bypass the Powershell execution policy due to group policies you can instead try "-ExecutionPolicy RemoteSigned" which should allow unsigned local scripts.

Windows Powershell Script Execution

On some systems Windows Powershell script execution is disabled by default. There are a number of workarounds for this which can be found by searching the term "Powershell Execution Policy".
Here is the most common workaround which WhereScape suggests, which does not permanently change the execution rights:
Start a Windows CMD prompt as Administrator, change directory to your script directory and run the WhereScape Powershell scripts with this command:

cmd:>Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1>

Restarting failed scripts

Some of the setup scripts will track each step and output the step number when there is a failure. To restart from the failed step (or to skip the step) provide the parameter "-startAtStep <step number>" to the script.
Example:
Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1> -startAtStep 123
Tip: to avoid having to provide all the parameters again you can copy the full command line with parameters from the first "INFO" message from the beginning of the console output.

If a valid RED installation can not be found

If you have Red 8.6.1.x or higher installed but the script (install_Source_Enablement_Pack.ps1) fails to find it on you system then you are most likely running PowerShell (x86) version which does not show installed 64 bit apps by default. Please open a 64 bit version of PowerShell instead and re-run the script.

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