Amazon S3 Utilities

Hi Barat, how you had called the WEPAPI from interface which will download the document in single click?

Currently using the below code which requires user to click to two times, one to generate the link and other to download to their local. Can we achieve in single click?

a!linkField(
links: {
a!dynamicLink(
label: "Click here",
saveInto: {
a!save(
local!newURI,
getPreSignedURLForS3(
secureCredentialsStoreKey: "key**",
region: "reg***",
bucketName: "buck**",
file: "filePath"
)
)
}
),
a!safeLink(label: local!docName, uri: local!newURI)
}
)

I am not sure I understand your use case but the use case for this function is to allow direct document download links - user clicks on a link, the web api validates security, generates the redirect link and the browser provides them with a pop up to download the doc. You can use other s3 plugins to satisfy your use case, either here or through the S3 connected system.

In our case, there will be more files per request and all should be evaluated for approval. User needs to generate the link repeatedly as he feels more difficult to act immediately to download as the the links are getting expired soon.

What would be a need for more than 5s? The limit only applies b/w calculating the url and issuing a redirect inside the web api so it should be done very quickly unless you have extreme network lags b/w browser and server.

• getPreSignedURLForS3 that generates a V4 pre signed url that expires after 5s. This allows for a short term access grant to a secured resource. It can be used in a WebAPI object to redirect a user from Appian to a resource on S3.

Can we get the increased amount of time for the URL to be active at least for a min instead of 5s?

• Updates to Jackson databind, core, and annotations libraries

Seems like the latest update yields this error when installing or upgrading from Admin Console -> Plugins -> Add Plug-Ins

HTTP Code: 500
APNX-1-4198-019

An Error Has Occurred
Expression evaluation error [evaluation ID = b6607:8126d] : An error occurred while executing a save: java.util.UnknownFormatConversionException: Conversion = 'D'

Any ideas on how to resolve?

Yeah it is causing an issue. The document cannot be downloaded since the site cannot be reached. This is what I see on the browser:

__________________

This site can’t be reached

Check if there is a typo in s3.{bucket-name}.amazonaws.com.

Is this causing an issue? Can you not access the doc?