62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
const cds = require("@sap/cds");
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const s4apiKey = process.env.S4_APIKEY;
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if (!s4apiKey && cds.env.profiles.indexOf("sandbox") >= 0) {
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console.error(
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"[ERROR] Provide API Key in env var S4_APIKEY for S/4 Sandbox: https://api.sap.com/api/API_BUSINESS_PARTNER/resource -> Show API Key"
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);
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process.exit(1);
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}
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module.exports = cds.service.impl(async function () {
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const { Notes, Suppliers } = this.entities;
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const bpService = await cds.connect.to("API_BUSINESS_PARTNER");
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// REVISIT: This is a workaround for the missing capability to add headers to the service
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const bpServiceDelegate = {
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run: query => bpService.send({ query, headers: { APIKey: s4apiKey } })
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};
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// Suppliers?$expand=notes
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this.on("READ", Suppliers, async (req, next) => {
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const expandIndex = req.query.SELECT.columns.findIndex(
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({ expand, ref }) => expand && ref[0] === "notes"
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);
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if (expandIndex < 0) return next();
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req.query.SELECT.columns.splice(expandIndex, 1);
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if (!req.query.SELECT.columns.find(
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column => column.ref.find((ref) => ref == "ID"))
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)
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req.query.SELECT.columns.push({ ref: ["ID"] });
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const suppliers = await next();
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// Request all associated notes
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const supplierIds = suppliers.map((supplier) => supplier.ID);
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const notes = await this.run(SELECT.from(Notes).where({ supplier_ID: supplierIds }));
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// Convert in a map for easier lookup
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const notesForSuppliers = {};
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for (const note of notes) {
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if (!notesForSuppliers[note.supplier_ID]) notesForSuppliers[note.supplier_ID] = [];
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notesForSuppliers[note.supplier_ID].push(note);
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}
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// Add notes to result
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for (const supplier of suppliers) {
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const notesForSupplier = notesForSuppliers[supplier.ID];
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if (notesForSupplier) supplier.notes = notesForSupplier;
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}
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return suppliers;
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});
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this.on("READ", Suppliers, async req => {
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return bpServiceDelegate.run(req.query);
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});
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});
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