In BTP Use JS SAP Cloud SDK to create material document in S/4 Hana Cloud

In S/4 Hana Cloud side by side extension , we need to develope backend to create material document in S/4 Hana cloud . In this case we use nodejs . If we use SAP Cloud SDK , it will improve our developement efficiency greatly . Today I want to demo how to create material document in S/4 Hana Cloud with SAP Cloud SDK in nodejs .

In api hub in the following linkage , we can check cloud sdk for material document .

SAP API Business Hub

Code snippy:

package.json

{
    "name": "capdemo23-srv",
    "engines": {
        "node": "14.x"
    },
    "dependencies": {
        "@sap-cloud-sdk/core": "latest",
        "@sap/cloud-sdk-vdm-material-document-service": "latest",
        "@sap-cloud-sdk/temporal-de-serializers": "latest",
        "@sap/hana-client": "^2.12.22",
        "@sap/xsenv": "latest",
        "@sap/xssec": "latest",
        "body-parser": "latest",
        "cors": "latest",
        "express": "latest",
        "passport": "latest"
    },
    "scripts": {
        "start": "node server.js"
    }
}

server.js

const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const cors = require('cors');
const { temporalDeSerializersV2 } = require('@sap-cloud-sdk/temporal-de-serializers');

const xsenv = require('@sap/xsenv');
xsenv.loadEnv();
const services = xsenv.getServices({
    uaa: { tag: 'xsuaa' }
});


const xssec = require('@sap/xssec');
const passport = require('passport');
passport.use('JWT', new xssec.JWTStrategy(services.uaa));
app.use(passport.initialize());
app.use(passport.authenticate('JWT', {
    session: false
}));

app.use(bodyParser.json());
app.use(cors());

const { retrieveJwt } = require('@sap-cloud-sdk/core');
const { desc } = require('@sap-cloud-sdk/core');
const{ materialDocumentService } =require('@sap/cloud-sdk-vdm-material-document-service');
const { json } = require('body-parser');
const{materialDocumentHeaderApi,materialDocumentItemApi}=materialDocumentService(temporalDeSerializersV2);


function postMaterialDoc(req){
    // console.log(req.body);
    let docs = new Array();

    req.body.to_MaterialDocumentItem.forEach(function(e){
       let doc = materialDocumentItemApi.entityBuilder()
       .material(e.Material).plant(e.Plant).storageLocation(e.StorageLocation)
       .goodsMovementType(e.GoodsMovementType).purchaseOrder(e.PurchaseOrder)
       .purchaseOrderItem(e.PurchaseOrderItem).goodsMovementRefDocType(e.GoodsMovementRefDocType)
       .entryUnit(e.EntryUnit).quantityInEntryUnit(e.QuantityInEntryUnit).build();
        docs.push(doc);
    });
    const materialDoc = materialDocumentHeaderApi.entityBuilder().postingDate(req.body.PostingDate).goodsMovementCode(req.body.GoodsMovementCode).toMaterialDocumentItem(docs).build();
    console.log(materialDoc);
    return materialDocumentHeaderApi.requestBuilder().create(materialDoc).execute({
        destinationName: 'O5P' ,
        jwt: retrieveJwt(req)
    }); 
}

app.post('/srv/materialdoc',function(req,res){
    postMaterialDoc(req).then( result => {
        res.status(200).json(result);
    }).catch(err=>{
        res.status(500).json(err);
    });

});



const port = process.env.PORT || 5001;
app.listen(port, function () {
    console.info('Listening on http://localhost:' + port);
});

mta.yml

ID: capdemo23
_schema-version: "3.1"
version: 0.0.1

parameters:
  enable-parallel-deployments: true

modules:

  - name: capdemo23-srv
    type: nodejs
    path: srv
    parameters:
      disk-quota: 512M
      memory: 256M
    provides:
      - name: srv_api
        properties:
          url: ${default-url}
    requires:
      - name: capdemo23-uaa
      - name: capdemo23-dest

  - name: capdemo23-app
    type: html5
    path: app
    parameters:
      disk-quota: 512M
      memory: 256M
    requires:
      - name: capdemo23-uaa
      - name: srv_api
        group: destinations
        properties:
          name: srv
          url: ~{url}
          forwardAuthToken: true
resources:
  - name: capdemo23-uaa
    type: org.cloudfoundry.managed-service
    parameters:
      path: ./xs-security.json
      service-plan: application
      service: xsuaa
  - name: capdemo23-dest
    type: org.cloudfoundry.managed-service
    parameters:
      service: destination
      service-plan: lite
      config:
        init_data:
          instance:
            existing_destinations_policy: ignore
            destinations:
              - Name: capdemo23-s4hc-api
                Description: S/4HANA Cloud
                URL: https://sandbox.api.sap.com/s4hanacloud
                Type: HTTP
                ProxyType: Internet
                Authentication: NoAuthentication
                URL.headers.APIKey: <SetValueInCockpit>
                URL.headers.Application-Interface-Key: <SetValueInCockpit>

xs-security.json

{
  "xsappname": "capdemo23",
  "tenant-mode": "dedicated",
  "scopes": [
    {
      "name": "$XSAPPNAME.User",
      "description": "User"
    },
    {
      "name": "$XSAPPNAME.Admin",
      "description": "Admin"
    }
  ],
  "role-templates": [
    {
      "name": "User",
      "description": "User",
      "scope-references": [
        "$XSAPPNAME.User"
      ]
    },
    {
      "name": "Admin",
      "description": "Admin",
      "scope-references": [
        "$XSAPPNAME.Admin"
      ]
    }
  ],
  "role-collections": [
    {
      "name": "capdemo23_User",
      "description": "capdemo23 User",
      "role-template-references": [
        "$XSAPPNAME.User"
      ]
    },
    {
      "name": "capdemo23_Admin",
      "description": "capdemo23 Admin",
      "role-template-references": [
        "$XSAPPNAME.Admin"
      ]
    }
  ]
}