Gathering detailed insights and metrics for pouchdb-collate
Gathering detailed insights and metrics for pouchdb-collate
Gathering detailed insights and metrics for pouchdb-collate
Gathering detailed insights and metrics for pouchdb-collate
🦘 - PouchDB is a pocket-sized database.
npm install pouchdb-collate
Typescript
Module System
Node Version
NPM Version
99.6
Supply Chain
99.5
Quality
83.8
Maintenance
100
Vulnerability
100
License
JavaScript (98.81%)
Shell (0.68%)
HTML (0.51%)
Total Downloads
15,647,728
Last Day
2,196
Last Week
30,686
Last Month
188,763
Last Year
2,324,456
16,988 Stars
5,206 Commits
1,467 Forks
270 Watching
1,555 Branches
377 Contributors
Latest Version
9.0.0
Package Id
pouchdb-collate@9.0.0
Unpacked Size
35.27 kB
Size
9.00 kB
File Count
5
NPM Version
10.7.0
Node Version
20.11.1
Publised On
21 Jun 2024
Cumulative downloads
Total Downloads
Last day
-69.7%
2,196
Compared to previous day
Last week
-27.6%
30,686
Compared to previous week
Last month
-14.5%
188,763
Compared to previous month
Last year
-15.2%
2,324,456
Compared to previous year
Collation functions for PouchDB map/reduce. Used by PouchDB map/reduce to maintain consistent CouchDB collation ordering.
The PouchDB Collate API is not exposed by PouchDB itself, but if you'd like to use it in your own projects, it's pretty small, and it has a few functions you may find useful.
1npm install pouchdb-collate
1var pouchCollate = require('pouchdb-collate');
This package is conceptually an internal API used by PouchDB or its plugins. It does not follow semantic versioning (semver), and rather its version is pegged to PouchDB's. Use exact versions when installing, e.g. with --save-exact
.
PouchDB and its sub-packages are distributed as a monorepo.
For a full list of packages, see the GitHub source.
This is probably the most useful function in PouchDB Collate. It converts any object to a serialized string that maintains proper CouchDB collation ordering in both PouchDB and CouchDB (ignoring some subtleties with ICU string ordering in CouchDB vs. ASCII string ordering in PouchDB).
So for example, if you want to sort your documents by many properties in an array, you can do e.g.:
1var pouchCollate = require('pouchdb-collate'); 2var myDoc = { 3 firstName: 'Scrooge', 4 lastName: 'McDuck', 5 age: 67, 6 male: true 7}; 8// sort by age, then gender, then last name, then first name 9myDoc._id = pouchCollate.toIndexableString( 10 [myDoc.age, myDoc.male, mydoc.lastName, mydoc.firstName]);
The doc ID will be:
1'5323256.70000000000000017764\u000021\u00004McDuck\u00004Scrooge\u0000\u0000'
Which is of course totally not human-readable, but it'll sort everything correctly (floats, booleans, ints – you name it). If you need a human-readable doc ID, check out the DocURI project.
Warning! If you are syncing or storing docs in CouchDB, then you will need to modify these doc IDs, due to a bug in how Chrome parses URLs, which causes problems in the replicator when it tries to GET
docs at those URLs.
In short, you will need to replace all the \u0000
characters with some other separator. Assuming you're storing text data and not binary data, \u0001
should be fine:
1pouchCollate.toIndexableString([/* ... */]) 2 .replace(/\u0000/g, '\u0001');
Same as the above, but in reverse. Given an indexable string, it'll give you back a structured object.
For instance:
1var pouchCollate = require('pouchdb-collate'); 2 3// [ 67, true, 'McDuck', 'Scrooge' ] 4pouchCollate.parseIndexableString( 5 '5323256.70000000000000017764\u000021\u00004McDuck\u00004Scrooge\u0000\u0000')
Give it two objects, and it'll return a number comparing them. For example:
1pouchCollate.collate('foo', 'bar'); // 1 2pouchCollate.collate('bar', 'foo'); // -1 3pouchCollate.collate('foo', 'foo'); // 0
Of course it sorts more than just strings - any valid JavaScript object is sortable.
You shouldn't need to use this, but this function will normalize the object and return what CouchDB would expect - e.g. undefined
becomes null
, and Date
s become date.toJSON()
. It's basically what you would get if you called:
1JSON.parse(JSON.stringify(obj));
but a bit faster.
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
15 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
Reason
all changesets reviewed
Reason
no binaries found in the repo
Reason
license file detected
Details
Reason
detected GitHub workflow tokens with excessive permissions
Details
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
security policy file not detected
Details
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
Reason
Project has not signed or included provenance with any releases.
Details
Reason
project is not fuzzed
Details
Reason
SAST tool is not run on all commits -- score normalized to 0
Details
Reason
45 existing vulnerabilities detected
Details
Score
Last Scanned on 2024-12-16
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