Please use the form below to provide your feedback. Because your feedback is valuable to us, the information you submit in this form is recorded in our issue tracking system (JIRA), which is publicly available. You can track the status of your feedback using the ticket number displayed in the dialog once you submit the form.

Function: Advanced GET Operation with Cache

    March 16, 2025
    + 12

    Perform the Advanced GET operation with cache where Eventing interacts with the Data Service.

    The advancedGetOpWithCache function:

    • Performs the Advanced GET operation with an enabled bucket-backed cache

    • Requires Eventing Storage (or a metadata collection) and a source collection

    • Requires a binding of type bucket alias

    • Operates on any mutation where doc.type === "test_adv_get"

    • Has an optional parameter to couchbase.get called { "cache": true }, which enables caching of documents for up to 1 second

    For more information about the Advanced Self-Recursion Parameter, see Optional { "cache": true } Parameter.

    javascript
    Copy
    // Configure the settings for the advancedGetOpWithCache function as follows:
//
// Version 7.1+
//   "Function Scope"
//     *.* (or try bulk.data if non-privileged)
// Version 7.0.2+
//   "Listen to Location"
//     bulk.data.source
//   "Eventing Storage"
//     rr100.eventing.metadata
//   Binding(s)
//    1. "binding type", "alias name...", "bucket.scope.collection", "Access"
//       "bucket alias", "src_col",       "bulk.data.source",        "read and write"

function OnUpdate(doc, meta) {
    // filter out non-intersting documents
    if (!doc.type || doc.type !== "test_adv_get") return;
    log('input doc ', doc);
    log('input meta', meta);
    // let's read the same item and then try to read a non existent item
    var meta_ary = [{"id":"test_adv_get::1"}, {"id":"not_present::1"}];
    for (var i = 0; i < meta_ary.length; i++) {
        var result = couchbase.get(src_col,meta_ary[i],{"cache": true});
        if (result.success) {
            log('success adv. get with cache: result',result);
        } else {
            log('failure adv. get with cache: id',meta_ary[i].id,'result',result);
        }
    }
}