NodeJs导出PDF

（优于别人，并不高贵，真正的高贵应该是优于过去的自己。——海明威）

场景

根据订单参数生成账单PDF

结果

示例代码

/* eslint-disable no-unused-vars */
/* eslint-disable no-undef */
/* eslint-disable complexity */
const PDFDocument = require('pdfkit');
const fs = require('fs');
const dayjs = require('dayjs');
const AgencyWithdrawOrderStatus = {Completed: 'Completed',Submitted: 'Submitted',Rejected: 'Rejected',
}
const agencyName = 'Jasin';
const agencyEmail = '[e-mail]';
const order = {"id": "FI-AWO-20230718-8657637839","accountID": {"id": "ID-AGE-20230707-6351711990","type": "AGENCY"},"transactionNo": "FIAWO202307180650601146","referenceID": "","transferWay": "Bank card","walletID": "FI-WAL-20230707-5401898911","transferID": "FI-TRF-20230718-4134849682","transactionID": "FI-TRA-20230718-2048728248","somoServiceFee": 345,"somoServiceFeeRate": 0.05,"bankTransferFee": 3000,"bankTransferFeeRate": 3000,"paypalTransferFee": 345,"paypalTransferFeeRate": 0.05,"paypalRemittanceAmount": 6555,"bankRemittanceAmount": 6900,"totalAmount": 6900,"status": "Submitted","transactionList": [{"brandName": "asdasdads","transactionID": "FI-TRA-20230710-1494352833","brandID": "ID-BRA-20230627-2309656536","campaignID": "AC-CAM-20230710-3827733853","campaignTitle": "Jack","orderID": "AC-ORD-20230710-2795223591","type": "AGENCY_CAMPAIGN_ORDER_PAYMENT","amount": 6900,"somoServiceFee": 345,"paypalTransferFee": 345,"bankTransferFee": 0}, {"brandName": "asdasdads","transactionID": "FI-TRA-20230710-5284753385","brandID": "ID-BRA-20230627-2309656536","campaignID": "AC-CAM-20230710-4072616238","campaignTitle": "Kami","orderID": "AC-ORD-20230710-7402268061","type": "AGENCY_CAMPAIGN_ORDER_PAYMENT","amount": 0,"somoServiceFee": 0,"paypalTransferFee": 0,"bankTransferFee": 0}],"transactionCount": 2,"accountBalance": 888750099,"withdrawalMethod": {"bankEnabled": true,"bankAccountName": "12213","bankAccountNumber": "22","bankName": "333","bankAddress": "444","bankSwiftCode": "555"},"reason": "","createdAt": {"$date": "2023-07-18T09:53:45.568Z"},"updatedAt": {"$date": "2023-07-18T09:53:45.568Z"},"__v": 0
};
const method = async () => {const pdfBuffer = await new Promise((resolve) => {// 实例化PDF对象const doc = new PDFDocument({ size: 'A4' });const fontSize = 14;const remittanceText = 'Remittance amount:';const remittanceTitleColor = '#8792A2';const remittanceAmountColor = '#181C1F';const remittanceAmountSize = 40;const orderStatusText = order.status;const orderStatusColor = {Submitted: '#4E515C',Completed: '#009944',Rejected: '#FF0000',}[orderStatusText];const orderStatusBackColor = {Submitted: '#f2f4f9',Completed: '#d8f7e6',Rejected: '#f0dede',}[orderStatusText];const orderStatusOffset = {Submitted: -6,Completed: -8,Rejected: 0,}[orderStatusText];const getFloatNumber = (number) => {return parseFloat(number.toString()).toFixed(2);};const getConvertAmount = (number) => {return number / 100;};const rejectedOffset = order.status === 'Rejected' ? 45 : 0;const remittanceAmount = order.withdrawalMethod.paypalEnabled? order.paypalRemittanceAmount: order.bankRemittanceAmount;const transferFee = order.withdrawalMethod.paypalEnabled? order.paypalTransferFee: order.bankTransferFee;const remittanceAmountLength = getFloatNumber(getConvertAmount(remittanceAmount),).length;const remittanceAmoutOffset =remittanceAmountLength - 4 > 0 ? remittanceAmountLength - 4 : 0;const transferAccount =(order.withdrawalMethod.paypalEnabled? order.withdrawalMethod.paypalAccountID: order.withdrawalMethod.bankAccountName) ?? ' ';const transferDetailTitleColor = '#F2F3F7';const transferDetailTitleSize = 16;const transferDetailBackgroundColor = '#171A1F';const transferDetailTitleText = 'Transfer detail:';const orderStatusX = 100;const orderStatusY = 105;const startX = 73;const transferDetailRectY = 150;const transferDetailX = 80;const transferDetailY = 168;const transferDetailWidth = 500;const transferDetailHeight = 60;const sideWidth = 500;const sideHeight = 1;const valueColor = '#272A33';const linceColor = '#F5F7F7';doc.// 使用字体font(`${__dirname}/Montserrat-Bold.ttf`).// 字体大小fontSize(fontSize).// 字体颜色fillColor(remittanceTitleColor).// 这一行的文本text(remittanceText).fontSize(remittanceAmountSize).fillColor(remittanceAmountColor).text(`$ ${getFloatNumber(getConvertAmount(remittanceAmount))}`).// 渲染块，指定x，y坐标以及宽高rect(orderStatusX + 112 + remittanceAmoutOffset * 23,orderStatusY - 8,92,34,).// 块的颜色fill(orderStatusBackColor).// 块的字体大小fontSize(fontSize).// 字体的颜色fillColor(orderStatusColor).font(`${__dirname}/Montserrat-Regular.ttf`).// 指定x，y坐标text(orderStatusText,orderStatusX +16 +112 +orderStatusOffset +remittanceAmoutOffset * 23,orderStatusY,);if (orderStatusText === AgencyWithdrawOrderStatus.Rejected) {doc.rect(startX, transferDetailRectY, 469, 30).fill('#FFE58F').// 插入图片image('withdraw.pdf.rejected.png',startX + 10,transferDetailRectY + 5,{ width: 20, height: 20 },).fontSize(12).fillColor('#000000').text(` ${order.reason}`, startX + 35, transferDetailRectY + 6.5);}doc.rect(startX,transferDetailRectY + rejectedOffset,transferDetailWidth,transferDetailHeight,).fill(transferDetailTitleColor).fontSize(transferDetailTitleSize).fillColor(transferDetailBackgroundColor).font(`${__dirname}/Montserrat-Bold.ttf`).text(transferDetailTitleText,transferDetailX,transferDetailY + rejectedOffset,{continued: false,baseline: 'top',},).font(`${__dirname}/Montserrat-Regular.ttf`).fontSize(fontSize).fillColor(remittanceTitleColor).text('Agency:',startX,transferDetailRectY + transferDetailHeight + 20 + rejectedOffset,{ lineBreak: false },).fillColor(valueColor).text(agencyName, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text(`Email:`, startX, doc.y, { lineBreak: false, lineGap: 5 }).fillColor(valueColor).text(agencyEmail, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Transaction No. :', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(order.transactionNo, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Reference ID. :', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(order.referenceID || ' ', startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Transfer way:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(order.transferWay, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Transfer account:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(transferAccount, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Transfer status:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(orderStatusText, startX + 200, doc.y, { lineGap: 5 }).fontSize(fontSize).fillColor(remittanceTitleColor).text('Created time:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(dayjs(order.createdAt.valueOf()).format('YYYY-MM-DD HH:mm:ss'),startX + 200,doc.y,{ lineGap: 5 },).fontSize(fontSize).fillColor(remittanceTitleColor).text('Update time:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(dayjs(order.updatedAt.valueOf()).format('YYYY-MM-DD HH:mm:ss'),startX + 200,doc.y,{ lineGap: 5 },).rect(startX, doc.y + 10, sideWidth, sideHeight).fill(linceColor).fontSize(fontSize).fillColor(remittanceTitleColor).text('Order total amount:', startX, doc.y + 20, { lineBreak: false }).fillColor(valueColor).text(`$ ${getFloatNumber(getConvertAmount(order.totalAmount))}`,startX + 200,doc.y,{lineGap: 5,},).fontSize(fontSize).fillColor(remittanceTitleColor).text('SOMO service fee:', startX, doc.y, {lineBreak: false,}).fillColor(remittanceTitleColor).text(`$ ${getFloatNumber(getConvertAmount(order.somoServiceFee))}`,startX + 200,doc.y,{lineGap: 5,strike: true,},).fontSize(fontSize).fillColor(remittanceTitleColor).text('Transfer fee:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(`$ ${getFloatNumber(getConvertAmount(transferFee))}`,startX + 200,doc.y,{lineGap: 5,},).fontSize(fontSize).fillColor(remittanceTitleColor).text('Remittance amount:', startX, doc.y, { lineBreak: false }).fillColor(valueColor).text(`$ ${getFloatNumber(getConvertAmount(remittanceAmount))}`,startX + 200,doc.y,{lineGap: 5,},).rect(startX, doc.y + 10, sideWidth, 60).fill('#F2F3F7').fontSize(transferDetailTitleSize).fillColor('#171A1F').font(`${__dirname}/Montserrat-Bold.ttf`).text('Associated with the order', transferDetailX, doc.y + 30, {lineBreak: false,baseline: 'top',}).text(' ', { lineGap: 10 }).font(`${__dirname}/Montserrat-Regular.ttf`);for (let i = 0; i < order.transactionList.length; i++) {const item = order.transactionList[i];const itemTransferFee = order.withdrawalMethod.paypalEnabled? item.paypalTransferFee: item.bankTransferFee;doc.text(' ', { lineGap: 10 });doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('Brand:', startX, doc.y, { paragraphGap: -20 }).fillColor(valueColor).text(item.brandName, startX + 200, doc.y, { lineGap: 8 });doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('Campaign:', startX, doc.y, { paragraphGap: -20 }).fillColor(valueColor).text(item.campaignTitle, startX + 200, doc.y, { lineGap: 8 });doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('Order ID:', startX, doc.y, { paragraphGap: -20 }).fillColor(valueColor).text(item.orderID, startX + 200, doc.y, { lineGap: 8 });doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('Oder price:', startX, doc.y, { paragraphGap: -20 }).fillColor(valueColor).text(`$ ${getFloatNumber(getConvertAmount(item.amount))}`,startX + 200,doc.y,{lineGap: 8,},);doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('SOMO service fee:', startX, doc.y, {paragraphGap: -20,}).fillColor(remittanceTitleColor).text(`$ ${getFloatNumber(getConvertAmount(item.somoServiceFee))}`,startX + 200,doc.y,{lineGap: 8,strike: true,},);doc.fontSize(fontSize).fillColor(remittanceTitleColor).text('Transfer fee:', startX, doc.y, { paragraphGap: -20 }).fillColor(valueColor).text(`$ ${getFloatNumber(getConvertAmount(itemTransferFee))}`,startX + 200,doc.y,{lineGap: 8,},);doc.rect(startX, doc.y + 20, sideWidth, sideHeight).fill(linceColor);}doc.end();const buffers = [];// 使用pdfkit的监听方法收集buffer，便于后续文件处理doc.on('data', buffers.push.bind(buffers));doc.on('end', () => {const pdfData = Buffer.concat(buffers);return resolve(pdfData);});});fs.writeFileSync(`${__dirname}/file.pdf`, pdfBuffer);
};
method();