Loopback.io.md

Setup (env:Ubuntu)

• apt-get install npm
• apt install nodejs-legacy
• npm install -g loopback-cli

Create Model
lb model

Delete a model
Delete /common/models/your-model.js and /common/models/your-model.json, then delete the lines referencing your model in /server/model-config.json.

Create Datasource
lb datasource

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Files

SchemaUpdate.js (Place it in <loopback-project>/server/boot)
To update models schema back in db on every startup of the server

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Postgre DB connector Guide
https://strongloop.com/strongblog/postgresql-node-js-apis-loopback-connector/

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DynamoDb
https://github.com/tma-isbx/loopback-connector-dynamodb

npm install tma-isbx/loopback-connector-dynamodb

No model discovery both ways,,, but works if create "lb model" acc to definition of existing dynamoDb table

SchemaUpdate.js

var async = require( 'async' );
module.exports = function( app, cb ) {
  var datasources = Object.keys( app.dataSources );
  async.eachSeries( datasources, function( dsName, cb ) {
    var ds = app.dataSources[ dsName ];
    ds.isActual( function( err, actual ) {
      if ( err ) return cb( err );
      if ( actual ) { console.log( 'datasource', dsName, 'is up to date' ); return
cb(); }
      ds.autoupdate( function( err ) {
        if ( err ) return cb( err );
        console.log( 'datasource', dsName, 'updated' );
        cb();
      });
    });
  }, cb );
};