DEVELOP GUIDES
Working with Events and presignedUrl

4 min
Events and presignedUrl requires partners to provide webhook for Klavi event reception, and proactively obtain analysis result files based on the presignedUrl in the event.
1.Configure the webhook for event reception
Partners need to configure the following information in the Console:
Events receiving method(Push/Pull)
Webhook for event reception(If push events method)
Encryption Options(Yes/No)
The above information can also be provided to Klavi business personnel for Klavi to fill in.
2.Passive reception or active polling and parse events through webhook
After Klavi completes the data analysis, it will send notifications to the configured webhooks.
JSON
{
    "partnerAppId":"12345678",
    "eventId":"1495468585434-0e73d1719173766fe4dfe1a8",
    "eventType":"analysis",
    "eventName":"analysis_finished",
    "eventTime":"2025-02-26T20:08:17.848Z",
    "payload":{
        "batchId":"25872252137",
        "presignedUrl":"https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456"
    }
}
{
    "partnerAppId":"12345678",
    "eventId":"1495468585434-0e73d1719173766fe4dfe1a8",
    "eventType":"analysis",
    "eventName":"analysis_finished",
    "eventTime":"2025-02-26T20:08:17.848Z",
    "payload":{
        "batchId":"25872252137",
        "presignedUrl":"https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456"
    }
}
﻿
Parse the above event and obtain the presignedUrl of the sharing file.
HTML
https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
﻿
3.Retrieve sharing result data through presignedUrl
Bash
Python
wget -O <output-file-name> https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
# or
curl -o <output-file-name> https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
wget -O <output-file-name> https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
# or
curl -o <output-file-name> https://amzn-s3-demo-bucket.s3.us-west-2.amazonaws.com/key?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAEXAMPLE123456789%2F20210621%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20210621T041609Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=EXAMBLE1234494d5fba3fed607f98018e1dfc62e2529ae96d844123456
﻿
The default lifecycle of presignedUrl is 1 day (24 hours), starting from eventTime. Partners need to complete file retrieval before the end of the lifecycle, otherwise the URL will become invalid.
﻿
Working with sFTP
Environment