Goal: Perform the Advanced UPSERT operation where Eventing interacts with the Data service.
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This function advancedUpsertOp merely demonstrates the Advanced UPSERT operation.
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Requires Eventing Storage (or metadata collection) and a "source" collection.
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Needs a Binding of type "bucket alias" (as documented in the Scriptlet).
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Will operate on any mutation where doc.type === "control_adv_insert".
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For more information refer to Advanced UPSERT operation in the detailed documentation.
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advancedUpsertOp
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Input Data/Mutation
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Output Data
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Output Log
// To run configure the settings for this Function, advancedGetOp, as follows:
//
// Version 7.1+
// "Function Scope"
// *.* (or try bulk.data if non-privileged)
// Version 7.0+
// "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"
//
// Version 6.6.1
// "Source Bucket"
// source
// "MetaData Bucket"
// metadata
// Binding(s)
// 1. "binding type", "alias name...", "bucket", "Access"
// "bucket alias", "src_col", "source", "read and write"
function OnUpdate(doc, meta) {
if (!meta.id.startsWith("control_adv_upsert")) return;
log('input meta', meta);
log('input doc ', doc);
// two modes typical upsert or setting a expiration/TTL
// note CAS if supplied will be ignored (use replace for this)
var new_meta = {"id":"test_adv_upsert:"+doc.ins_id};
if (doc.set_expiry && doc.set_expiry === true) {
new_meta = {"id":"test_adv_upsert:"+doc.ins_id, expiry_date: new Date(Date.now() + 60 * 1000)};
}
var new_doc = { type: "test_adv_upsert", id:+doc.ins_id, random: Math.random()}
var result = couchbase.upsert(src_col,new_meta,new_doc);
if (result.success) {
log('success adv. upsert: result',result);
} else {
log('failure adv. upsert: id',new_meta.id,'result',result);
}
}Mutation #1
INPUT: KEY control_adv_upsert::1
{
"id": 1,
"type": "control_adv_upsert",
"ins_id": 1,
"set_expiry": false
}
Mutation #2
INPUT: KEY control_adv_upsert::2
{
"id": 2,
"type": "control_adv_upsert",
"ins_id": 2,
"set_expiry": true
}
Mutation #3
INPUT: KEY control_adv_upsert::3
{
"id": 3,
"type": "control_adv_upsert",
"ins_id": 1,
"set_expiry": false
}We try to upsert three (3) documents all three (2) upserts succeed but the second, test_adv_upsert:2, will expire in 60 seconds because we set an expiration. Note, third upsert attempt will overwrite test_adv_upsert:1 thus we are left with two documents.
KEY: test_adv_upsert:1
{
"type": "test_adv_upsert",
"id": 1,
"random": 0.24687491488383362
}
KEY: test_adv_upsert:2
{
"type": "test_adv_upsert",
"id": 2,
"random": 0.08984103133112087
}Logs from Mutation #1
2021-01-07T17:43:52.527-08:00 [INFO] "input meta"
{
"cas": "1610070232443518976",
"id": "control_adv_upsert::1",
"expiration": 0,
"flags": 33554438,
"vb": 334,
"seq": 1
}
2021-01-07T17:43:52.527-08:00 [INFO] "input doc "
{
"id": 1,
"type": "control_adv_upsert",
"ins_id": 1,
"set_expiry": false
}
2021-01-07T17:43:52.529-08:00 [INFO] "success adv. upsert: result"
{
"meta": {
"id": "test_adv_upsert:1",
"cas": "1610070232527667200"
},
"success": true
}
Logs from Mutation #2
2021-01-07T17:44:21.926-08:00 [INFO] "input meta"
{
"cas": "1610070261867741184",
"id": "control_adv_upsert::2",
"expiration": 0,
"flags": 33554438,
"vb": 71,
"seq": 1
}
2021-01-07T17:44:21.926-08:00 [INFO] "input doc "
{
"id": 2,
"type": "control_adv_upsert",
"ins_id": 2,
"set_expiry": true
}
2021-01-07T17:44:21.929-08:00 [INFO] "success adv. upsert: result"
{
"meta": {
"id": "test_adv_upsert:2",
"cas": "1610070261927641088",
"expiry_date": "2021-01-08T01:45:21.000Z"
},
"success": true
}
Logs from Mutation #3
2021-01-07T17:44:58.063-08:00 [INFO] "input meta"
{
"cas": "1610070298010845184",
"id": "control_adv_upsert::3",
"expiration": 0,
"flags": 33554438,
"vb": 832,
"seq": 1
}
2021-01-07T17:44:58.063-08:00 [INFO] "input doc "
{
"id": 3,
"type": "control_adv_upsert",
"ins_id": 1,
"set_expiry": false
}
2021-01-07T17:44:58.065-08:00 [INFO] "success adv. upsert: result"
{
"meta": {
"id": "test_adv_upsert:1",
"cas": "1610070298064257024"
},
"success": true
}