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communibase-connector-js --- a Node.js connector for the Communibase service

A general-purpose Communibase client for node.js projects. It is primarily a Singleton connector doing REST-calls on the Communibase API using a queuing system. It returns A+ promises for Communibase responses. Behaviour is reflected by a PHP-version that can be found at Github.


npm install --save communibase-connector-js


Make sure environment variable exists with your API-key called COMMUNIBASE_KEY

cbc = require('communibase-connector-js');'Person', { firstName: 'Tim' }).then(function (peopleCalledTim) {
//do something with peopleCalledTim 

When you need to connect using multiple Communibase API Keys for some reason, you need to 'clone' the connector per key.

cbc = require('communibase-connector-js').clone(<your api key here>);

If you need to connect to a specific version of the endpoint, you may want to set a environment variable COMMUNIBASE_API_URL e.g.

COMMUNIBASE_API_URL= node script.js

The following methods exists, all returning a promise for a result.

"selectors" may be provided MongoDb style.

"params" is a key value store for e.g. fields, limit, page and/or sort . See API docs for more details.

The param includeMetadata will set a metadata-property on the promise, when available.

cbc.getById(entityType, id, params): Promise for Entity;
cbc.getByIds(entityType, id[], params): Promise for Entity[];
cbc.getAll(entityType, params): Promise for Entity[];
cbc.getId(entityType, selector): Promise for id[];
cbc.getIds(entityType, selector, params): Promise for id[];, selector, params): Promise for Entity[];
cbc.update(entityType, document): Promise for Entity;
cbc.destroy(entityType, id): Promise for null;
cbc.undelete(entityType, id): Promise for null;

An entity is an plain JavaScript object: a key/value store of data in Communibase, also called "document".


"firstName": "Tim",
"addresses": [
"street": "Breestraat"

The update-Promise may be rejected if an entity is not considered valid. The Error has one or more of the following properties:

"message": <a simplified error-string>
"code": <http response code of API>
"errors": {
"field": "<string>",
"message": "<string>"
], ...

Bonus features


cbc.createReadStream(fileId) : Stream;

First, find the _id of both the document and the version you are looking for. To find all available versions of a specific document, use

cbc.getHistory(entityType, id) : Promise for  VersionInformation[];

Alternatively, you can search the entire history of documents to look for specific properties. e.g.

//Lookup all versions of any person (even deleted documents) ever with first name Tim. 
cbc.historySearch('Person', { firstName: 'Tim' }): Promise for VersionInformation[]

VersionInformation has the following structure

  • _id - The _id of the version.
  • refId - The _id of the original document. You can use this at the regular CRUD endpoint
  • updatedAt - The date this version was created
  • updatedBy - A human readable description describing who created it

With an _id and a refId, we can lookup that specific version via the API

cbc.getById(entityType, id, params, versionId) : Promise for version of document;

Aggregate document data via Mongodb pipeline. For more information, see

cbc.aggregate(entityType, aggregationPipeline);
var participantCounters = cbc.aggregate('Event', [
{ "$match": { "_id": {"$ObjectId": "52f8fb85fae15e6d0806e7c7"} } },
{ "$unwind": "$participants" },
{ "$group": { "_id": "$_id", "participantCount": { "$sum": 1 } } }

A DocumentReference is a unified specification to point to some other (sub-)doucment within the administration. A DocumentReference looks like:

rootDocumentId: '524aca8947bd91000600000c',
rootDocumentEntityType: 'Person',
path: [
field: 'addresses',
objectId: '53440792463cda7161000003'
}, ...

The contents will be parsed and the requested data will be retrieved.

The connector may cache documents locally. To enable in-memory cache for a certain instance of the connector:

cbc.enableCache(communibaseAdministrationId, socketServiceUrl)

Contact Kingsquare for these values in your particular scenario and use with caution: BEWARE of excessive memory usage!