From 9e24d5196fcff97e755027be013797333cf1b071 Mon Sep 17 00:00:00 2001 From: Anubhav Date: Sun, 15 Oct 2023 22:05:41 +0530 Subject: [PATCH] feat:generate-pdf-node-typescript --- node-typescript/generate-pdf/.gitignore | 130 +++++++ node-typescript/generate-pdf/.prettierrc.json | 7 + node-typescript/generate-pdf/env.d.ts | 36 ++ .../generate-pdf/package-lock.json | 363 ++++++++++++++++++ node-typescript/generate-pdf/package.json | 22 ++ node-typescript/generate-pdf/src/faker.ts | 21 + .../generate-pdf/src/interfaces.ts | 15 + node-typescript/generate-pdf/src/main.ts | 13 + node-typescript/generate-pdf/src/pdf.ts | 41 ++ 9 files changed, 648 insertions(+) create mode 100644 node-typescript/generate-pdf/.gitignore create mode 100644 node-typescript/generate-pdf/.prettierrc.json create mode 100644 node-typescript/generate-pdf/env.d.ts create mode 100644 node-typescript/generate-pdf/package-lock.json create mode 100644 node-typescript/generate-pdf/package.json create mode 100644 node-typescript/generate-pdf/src/faker.ts create mode 100644 node-typescript/generate-pdf/src/interfaces.ts create mode 100644 node-typescript/generate-pdf/src/main.ts create mode 100644 node-typescript/generate-pdf/src/pdf.ts diff --git a/node-typescript/generate-pdf/.gitignore b/node-typescript/generate-pdf/.gitignore new file mode 100644 index 00000000..6a7d6d8e --- /dev/null +++ b/node-typescript/generate-pdf/.gitignore @@ -0,0 +1,130 @@ +# Logs +logs +*.log +npm-debug.log* +yarn-debug.log* +yarn-error.log* +lerna-debug.log* +.pnpm-debug.log* + +# Diagnostic reports (https://nodejs.org/api/report.html) +report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json + +# Runtime data +pids +*.pid +*.seed +*.pid.lock + +# Directory for instrumented libs generated by jscoverage/JSCover +lib-cov + +# Coverage directory used by tools like istanbul +coverage +*.lcov + +# nyc test coverage +.nyc_output + +# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files) +.grunt + +# Bower dependency directory (https://bower.io/) +bower_components + +# node-waf configuration +.lock-wscript + +# Compiled binary addons (https://nodejs.org/api/addons.html) +build/Release + +# Dependency directories +node_modules/ +jspm_packages/ + +# Snowpack dependency directory (https://snowpack.dev/) +web_modules/ + +# TypeScript cache +*.tsbuildinfo + +# Optional npm cache directory +.npm + +# Optional eslint cache +.eslintcache + +# Optional stylelint cache +.stylelintcache + +# Microbundle cache +.rpt2_cache/ +.rts2_cache_cjs/ +.rts2_cache_es/ +.rts2_cache_umd/ + +# Optional REPL history +.node_repl_history + +# Output of 'npm pack' +*.tgz + +# Yarn Integrity file +.yarn-integrity + +# dotenv environment variable files +.env +.env.development.local +.env.test.local +.env.production.local +.env.local + +# parcel-bundler cache (https://parceljs.org/) +.cache +.parcel-cache + +# Next.js build output +.next +out + +# Nuxt.js build / generate output +.nuxt +dist + +# Gatsby files +.cache/ +# Comment in the public line in if your project uses Gatsby and not Next.js +# https://nextjs.org/blog/next-9-1#public-directory-support +# public + +# vuepress build output +.vuepress/dist + +# vuepress v2.x temp and cache directory +.temp +.cache + +# Docusaurus cache and generated files +.docusaurus + +# Serverless directories +.serverless/ + +# FuseBox cache +.fusebox/ + +# DynamoDB Local files +.dynamodb/ + +# TernJS port file +.tern-port + +# Stores VSCode versions used for testing VSCode extensions +.vscode-test + +# yarn v2 +.yarn/cache +.yarn/unplugged +.yarn/build-state.yml +.yarn/install-state.gz +.pnp.* \ No newline at end of file diff --git a/node-typescript/generate-pdf/.prettierrc.json b/node-typescript/generate-pdf/.prettierrc.json new file mode 100644 index 00000000..9ecc01d9 --- /dev/null +++ b/node-typescript/generate-pdf/.prettierrc.json @@ -0,0 +1,7 @@ +{ + "trailingComma": "es5", + "tabWidth": 2, + "semi": true, + "singleQuote": true + } + \ No newline at end of file diff --git a/node-typescript/generate-pdf/env.d.ts b/node-typescript/generate-pdf/env.d.ts new file mode 100644 index 00000000..9be94ed8 --- /dev/null +++ b/node-typescript/generate-pdf/env.d.ts @@ -0,0 +1,36 @@ +declare module 'faker' { + const faker: { + random: { + number(options?: { min?: number; max?: number }): number; + uuid(): string; + }; + commerce: { + productName(): string; + price(): string; + }; + date: { + past(): Date; + }; + name: { + findName(): string; + }; + }; + export default faker; + } +declare module 'your-pdf-lib-module' { + import { PDFDocument } from 'pdf-lib'; + + export function createPdf(params: { + id: string; + date: Date; + name: string; + items: { description: string; quantity: number; cost: string }[]; + total: number; + }): Promise; + } +declare module 'node:buffer' { + export class Buffer { + static from(data: string | Uint8Array, encoding?: string): Buffer; + toString(encoding?: string): string; + } + } diff --git 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"^3.0.0" + } +} diff --git a/node-typescript/generate-pdf/src/faker.ts b/node-typescript/generate-pdf/src/faker.ts new file mode 100644 index 00000000..1e704821 --- /dev/null +++ b/node-typescript/generate-pdf/src/faker.ts @@ -0,0 +1,21 @@ +import faker from 'faker'; +import { FakeOrder, FakeOrderItem } from './interfaces'; + +export function generateFakeOrder(): FakeOrder { + const items = Array.from( + { length: faker.random.number({ min: 1, max: 5 }) }, + () => ({ + description: faker.commerce.productName(), + quantity: faker.random.number({ min: 1, max: 10 }), + cost: faker.commerce.price(), + }) + ); + + return { + id: faker.random.uuid(), + date: faker.date.past(), + name: faker.name.findName(), + items, + total: items.reduce((acc, { cost }) => acc + parseFloat(cost), 0), + }; +} diff --git a/node-typescript/generate-pdf/src/interfaces.ts b/node-typescript/generate-pdf/src/interfaces.ts new file mode 100644 index 00000000..5e9582b6 --- /dev/null +++ b/node-typescript/generate-pdf/src/interfaces.ts @@ -0,0 +1,15 @@ +interface FakeOrderItem { + description: string; + quantity: number; + cost: string; + } + +interface FakeOrder { + id: string; + date: Date; + name: string; + items: FakeOrderItem[]; + total: number; + } + +export {FakeOrderItem,FakeOrder}; \ No newline at end of file diff --git a/node-typescript/generate-pdf/src/main.ts b/node-typescript/generate-pdf/src/main.ts new file mode 100644 index 00000000..ccbcc1d4 --- /dev/null +++ b/node-typescript/generate-pdf/src/main.ts @@ -0,0 +1,13 @@ +import { createPdf } from './pdf.js'; +import { generateFakeOrder } from './faker.js'; + +export default async ({ res, log }) => { + const fakeOrder = generateFakeOrder(); + log(`Generated fake order: ${JSON.stringify(fakeOrder, null, 2)}`); + + const pdfBuffer = await createPdf(fakeOrder); + log('PDF created.'); + + return res.send(pdfBuffer, 200, { 'Content-Type': 'application/pdf' }); +}; + diff --git a/node-typescript/generate-pdf/src/pdf.ts b/node-typescript/generate-pdf/src/pdf.ts new file mode 100644 index 00000000..481b5c8f --- /dev/null +++ b/node-typescript/generate-pdf/src/pdf.ts @@ -0,0 +1,41 @@ +import { PDFDocument } from 'pdf-lib'; +import { Buffer } from 'node:buffer'; + +export async function createPdf({ id, date, name, items, total }) { + const document = await PDFDocument.create(); + const page = document.addPage([595.28, 841.89]); // A4 size + + page.drawText('Sample Invoice', { x: 50, y: 750, size: 20 }); + page.drawText(new Date(date).toLocaleDateString(), { + x: 400, + y: 750, + size: 15, + }); + + page.drawText(`Hello, ${name}!`, { + x: 50, + y: 700, + size: 30, + }); + + page.drawText(`Order ID: ${id}`, { + x: 50, + y: 650, + size: 10, + }); + + page.drawText(`Total: $${total}`, { x: 50, y: 600, size: 15 }); + + const orderList = items + .map( + ({ description, quantity, cost }) => + `${description} x ${quantity} = $${cost}` + ) + .join('\n'); + + page.drawText(orderList, { x: 50, y: 550, size: 15 }); + + const pdfBytes = await document.save(); + + return Buffer.from(pdfBytes); +}