loopback-mixin-mongo-seq

$3

loopback v3 mixin to add support for sequential property.

$3

* install via npm.

``shell
npm install loopback-mixin-mongo-seq
`

* update server.js to load mixin.

`javascript
const loopbackMixinMongoSeq = require('loopback-mixin-mongo-seq');

loopbackMixinMongoSeq(app, {
dataSource: 'MongoDS', modelName: 'Counter'
});
`

* add mixins property to the required model.

`json
"mixins": {
"Seq" : {
"propertyName": "ID",
"step": 1,
"initialVal": 1,
"readOnly": true,
"definition": {
"index": { "unique": true }
}
}
}
`

$3

_propertyName_: property name, defaults to ID.

_step_: defaults to 1.

_initialVal_: value to start counter from if the sequence doesn't exist, defaults to the highest record in the target model if not found then 1.

_readOnly_: if the value should be protested against changes, defaults
to true.

_definition_: property definition ( can be used to add index to property), defaults to {}.

$3

`
DEBUG='loopback:mixin:mongo-seq'
``