Hyperledger Composer NodeJS SDK - Submiting Transactions

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asset Car identified by id {
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  o String id
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  o Integer name
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  --> User owner
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}

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transaction addNewCard {
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  o String id
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  o String name
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}

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/**
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 * A transaction to send good to an organization
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 * @param {org.acme.addNewCard} name A human description of the parameter
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 * @transaction
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 */
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function  addNewCard(transaction) {
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  var newCard;
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  var factory:getFactory();
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  var cId:getRandomId();
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  var owner:getCurrentParticipant();
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  return getParticipantRegistry("org.acme.Car").then(function(carRegistry) {
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    newCar:factory.newResource("org.acme", "Car", cId);
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    newCar.name:transaction.name;
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    newCar.owner:transaction.owner;
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    return carRegistry.add(newCar);
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  })
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}

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composer archive create -t dir -n .
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composer network update -a acme-network@0.0.1.bna -c admin@acme-network

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app.post('/api/createCard', function (req, res) {
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  var transactionData:req.body.transactionData;
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  var cardName:req.headers.authorization;
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  var mynetwork:new MyNetwork(cardName);
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  mynetwork.init().then(function () {
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      return mynetwork.createCar(transactionData)
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  }).then(function () {
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      res.json({ success: true })
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  }).catch(function (error) {
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      res.status(500).json({error: error.toString()})
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  })
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})

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createCar(transactionData) {
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  var _this:this;
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  var resource;
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  var transactionData;
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  transactionData['$class']: "org.acme.createCar";
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  return this.connection.getTransactionRegistry("org.acme.createCar")
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    .then(function(createProductTransactionRegistry) {
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      serializer:_this.businessNetworkDefinition.getSerializer()
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      resource:serializer.fromJSON(transactionData);
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      return _this.connection.submitTransaction(resource);
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    })
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}