Настройка узла сервера
Шаг 1:
Создайте папку ->
откройте папку в VS Code ->
в терминале VS Code введите «npm init»
Шаг 2. Создайте файлы index.js, custom_pdf.js, app.js, api.js.
Шаг 3. Установите NPM (менеджер пакетов Node).
npm i jspdf, npm i express, npm i http, npm i nodemon,
Шаг 4. Внутри app.js
const express = require("express");
const router = express.Router();
const routerApi = require('./api')
const app = express();
app.use(express.json())
app.use(routerApi)
module.exports = app;
Шаг 5: Внутри index.js
const app = require("./app");
const http = require("http");
const server = http.createServer(app);
const apiRoute = require('./api')
app.use(apiRoute)
server.listen(4000, () => {
console.log(`Server running on port 4000`);
});
Шаг 6: Внутри custom_pdf.js
const { jsPDF } = require("jspdf");
const OutputType = {
Save: "save", //save pdf as a file
DataUriString: "datauristring", //returns the data uri string
DataUri: "datauri", //opens the data uri in current window
DataUrlNewWindow: "dataurlnewwindow", //opens the data uri in new window
Blob: "blob", //return blob format of the doc,
ArrayBuffer: "arraybuffer", //return ArrayBuffer format
};
function jsPDFInvoiceTemplate(props) {
const param = {
outputType: props.outputType || "save",
returnJsPDFDocObject: props.returnJsPDFDocObject || false,
fileName: props.fileName || "",
orientationLandscape: props.orientationLandscape || false,
compress: props.compress || false,
logo: {
src: props.logo?.src || "",
type: props.logo?.type || "",
width: props.logo?.width || "",
height: props.logo?.height || "",
margin: {
top: props.logo?.margin?.top || 0,
left: props.logo?.margin?.left || 0,
},
},
stamp: {
inAllPages: props.stamp?.inAllPages || false,
src: props.stamp?.src || "",
width: props.stamp?.width || "",
height: props.stamp?.height || "",
margin: {
top: props.stamp?.margin?.top || 0,
left: props.stamp?.margin?.left || 0,
},
},
company: {
name: props.company?.name || "",
address1: props.company?.address1 || "",
address2: props.company?.address2 || "",
phone: props.company?.phone || "",
email: props.company?.email || "",
email_1: props.company?.email_1 || "",
website: props.company?.website || "",
pan: props.company?.pan || "",
},
signature: {
sign_img_src: props.signature?.sign_img_src || "",
name: props.signature?.name || "",
designation: props.signature?.designation || ""
},
document: {
label: props.document?.label || "",
body1: props.document?.body1 || "",
body2: props.document?.body2 || "",
body3: props.document?.body3 || "",
body4: props.document?.body4 || "",
body5: props.document?.body5 || "",
body6: props.document?.body6 || "",
body7: props.document?.body7 || ""
},
employee: {
name: props.employee?.name || "",
employee_id: props.employee?.employee_id || "",
date_of_join: props.employee?.date_of_join || "",
date_of_relieving: props.employee?.date_of_relieving || "",
designation: props.employee?.designation || "",
reason_for_leaving: props.employee?.reason_for_leaving || "",
},
footer: {
text1: props.footer?.text1 || "",
text2: props.footer?.text2 || "",
text3: props.footer?.text3 || "",
},
pageEnable: props.pageEnable || false,
pageLabel: props.pageLabel || "Page",
};
const splitTextAndGetHeight = (text, size) => {
var lines = doc.splitTextToSize(text, size);
return {
text: lines,
height: doc.getTextDimensions(lines).h,
};
};
const options = {
orientation: param.orientationLandscape ? "landscape" : "",
compress: param.compress
};
var doc = new jsPDF(options);
var docWidth = doc.internal.pageSize.width;
var docHeight = doc.internal.pageSize.height;
var colorBlack = "#000000";
var colorGray = "#4d4e53";
//starting at 15mm
var currentHeight = 15;
//var startPointRectPanel1 = currentHeight + 6;
var pdfConfig = {
headerTextSize: 18,
labelTextSize: 12,
fieldTextSize: 10,
lineHeight: 6,
subLineHeight: 4,
};
doc.setFontSize(pdfConfig.headerTextSize);
doc.setTextColor(colorBlack);
doc.text(docWidth - 10, currentHeight, param.company.name, "right");
doc.setFontSize(pdfConfig.fieldTextSize);
if (param.logo.src) {
var imageHeader = '';
if (typeof window === "undefined") {
imageHeader.src = param.logo.src;
} else {
imageHeader = new Image();
imageHeader.src = param.logo.src;
}
//doc.text(htmlDoc.sessionDateText, docWidth - (doc.getTextWidth(htmlDoc.sessionDateText) + 10), currentHeight);
if (param.logo.type)
doc.addImage(
imageHeader,
param.logo.type,
10 + param.logo.margin.left,
currentHeight - 5 + param.logo.margin.top,
param.logo.width,
param.logo.height
);
else
doc.addImage(
imageHeader,
10 + param.logo.margin.left,
currentHeight - 5 + param.logo.margin.top,
param.logo.width,
param.logo.height
);
}
doc.setTextColor(colorGray);
currentHeight += pdfConfig.subLineHeight;
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.address1, "right");
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.address2, "right");
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.phone, "right");
doc.setFontSize(pdfConfig.fieldTextSize);
// doc.setTextColor(colorGray);
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.email, "right");
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.email_1, "right");
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.website, "right");
currentHeight += pdfConfig.subLineHeight;
doc.text(docWidth - 10, currentHeight, param.company.pan, "right");
currentHeight += pdfConfig.subLineHeight;
doc.line(10, currentHeight, docWidth - 10, currentHeight);
//Document label part
doc.setTextColor(colorGray);
doc.setFontSize(pdfConfig.fieldTextSize);
currentHeight += pdfConfig.lineHeight;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize);
currentHeight += pdfConfig.subLineHeight;
if (param.document.label) doc.text(docWidth / 2, currentHeight, param.document.label, 'center');
currentHeight += 1;
const textWidth = doc.getTextWidth(param.document.label);
doc.line(docWidth / 2.75, currentHeight, 75 + textWidth, currentHeight)
//end Document label part
//#endregion
//Document Body part
currentHeight += pdfConfig.lineHeight * 2;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize - 5);
if (param.document.body1 && param.document.body2 && param.document.body3 && param.document.body4) {
var lines = doc.splitTextToSize(param.document.body1 + param.employee.name + param.document.body2 + param.employee.date_of_join + param.document.body3 + param.employee.date_of_relieving + param.document.body4 + param.employee.designation + '.', docWidth - 10);
doc.text(docWidth / 2, currentHeight, lines, 'center');
}
currentHeight += pdfConfig.lineHeight * 3;
doc.text(50, currentHeight, `Employee Name\t\t: ` + param.employee.name);
currentHeight += pdfConfig.lineHeight * 1.5;
doc.text(50, currentHeight, `Employee ID\t\t : ` + param.employee.employee_id);
currentHeight += pdfConfig.lineHeight * 1.5;
doc.text(50, currentHeight, `Date of Joining\t\t : ` + param.employee.date_of_join);
currentHeight += pdfConfig.lineHeight * 1.5;
doc.text(50, currentHeight, `Date of Relieving\t\t: ` + param.employee.date_of_relieving);
currentHeight += pdfConfig.lineHeight * 1.5;
doc.text(50, currentHeight, `Reason for Leaving\t : ` + param.employee.reason_for_leaving);
currentHeight += pdfConfig.lineHeight * 1.5;
doc.text(50, currentHeight, `Designation\t\t\t: ` + param.employee.designation);
currentHeight += pdfConfig.lineHeight * 3;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize - 5);
if (param.document.body5) {
var lines = doc.splitTextToSize(param.document.body5, docWidth - 10);
doc.text(docWidth / 2, currentHeight, lines, 'center');
}
currentHeight += pdfConfig.lineHeight * 3;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize - 5);
if (param.document.body6) {
var lines = doc.splitTextToSize(param.document.body6 + param.employee.name + param.document.body7, docWidth - 10);
doc.text(docWidth / 2, currentHeight, lines, 'center');
}
//end Document Body part
//#endregion
//Signature part
currentHeight += pdfConfig.lineHeight * 3;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize - 5);
if (param.company.name) {
var lines = doc.splitTextToSize(`For ` + param.company.name);
doc.text(15, currentHeight, lines);
}
currentHeight += pdfConfig.lineHeight*2;
if (param.signature.sign_img_src) {
var signImage = ''
if (typeof window === "undefined") {
signImage.src = param.signature.sign_img_src;
} else {
signImage = new Image()
signImage.src = param.signature.sign_img_src;
}
//doc.text(htmlDoc.sessionDateText, docWidth - (doc.getTextWidth(htmlDoc.sessionDateText) + 10), currentHeight);
if (param.logo.type)
doc.addImage(
signImage,
param.logo.type,
10 + param.logo.margin.left,
currentHeight - 5 + param.logo.margin.top,
param.logo.width,
param.logo.height
);
else
doc.addImage(
signImage,
10 + param.logo.margin.left,
currentHeight - 5 + param.logo.margin.top,
param.logo.width,
param.logo.height
);
}
currentHeight += pdfConfig.lineHeight*2;
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.headerTextSize - 5);
if (param.signature.name) {
var lines = doc.splitTextToSize(param.signature.name);
doc.text(15, currentHeight, lines);
}
currentHeight += pdfConfig.lineHeight;
if (param.signature.designation) {
var lines = doc.splitTextToSize(param.signature.designation);
doc.text(15, currentHeight, lines);
}
//end Document Body part
//#endregion
//#region Stamp
var addStamp = () => {
let _addStampBase = () => {
var stampImage = '';
if (typeof window === "undefined") {
stampImage.src = param.stamp.src;
} else {
stampImage = new Image();
stampImage.src = param.stamp.src;
}
if (param.stamp.type)
doc.addImage(
stampImage,
param.stamp.type,
10 + param.stamp.margin.left,
docHeight - 22 + param.stamp.margin.top,
param.stamp.width,
param.stamp.height
);
else
doc.addImage(
stampImage,
10 + param.stamp.margin.left,
docHeight - 22 + param.stamp.margin.top,
param.stamp.width,
param.stamp.height
);
};
if (param.stamp.src) {
if (param.stamp.inAllPages)
_addStampBase();
else if (!param.stamp.inAllPages && doc.getCurrentPageInfo().pageNumber == doc.getNumberOfPages())
_addStampBase();
}
}
//#endregion
doc.setTextColor(colorBlack);
doc.setFontSize(pdfConfig.labelTextSize);
currentHeight += pdfConfig.lineHeight;
doc.setTextColor(colorBlack);
currentHeight += pdfConfig.subLineHeight;
currentHeight += pdfConfig.subLineHeight;
// currentHeight += pdfConfig.subLineHeight;
doc.setFontSize(pdfConfig.labelTextSize);
//#region Add num of pages at the bottom
if (doc.getNumberOfPages() > 1) {
for (let i = 1; i <= doc.getNumberOfPages(); i++) {
doc.setFontSize(pdfConfig.fieldTextSize - 2);
doc.setTextColor(colorGray);
if (param.pageEnable) {
doc.text(docWidth / 2, docHeight - 10, param.footer.text2, "center");
doc.setPage(i);
doc.text(
param.pageLabel + " " + i + " / " + doc.getNumberOfPages(),
docWidth - 20,
doc.internal.pageSize.height - 6
);
}
addStamp();
}
}
//#endregion
addStamp();
//#region Add num of first page at the bottom
if (doc.getNumberOfPages() === 1 && param.pageEnable) {
doc.setFontSize(pdfConfig.fieldTextSize - 2);
doc.setTextColor(colorGray);
doc.text(docWidth / 2, docHeight - 30, param.footer.text1 + param.company.email_1, "center");
doc.line(10, docHeight - 25, docWidth - 10, docHeight - 25);
var lines = doc.splitTextToSize(param.footer.text2 + param.company.name + param.company.address1 + param.company.address2 + '.', docWidth - 10);
doc.text(docWidth / 2, docHeight - 20, lines, 'center');
doc.text(docWidth / 2, docHeight - 10, param.footer.text3, "center");
doc.text(
param.pageLabel + "1 / 1",
docWidth - 20,
doc.internal.pageSize.height - 6
);
}
//#endregion
let returnObj = {
pagesNumber: doc.getNumberOfPages(),
};
if (param.returnJsPDFDocObject) {
returnObj = {
...returnObj,
jsPDFDocObject: doc,
};
}
if (param.outputType === "save") doc.save(param.employee.name + "_" + props.fileName + "_" + param.employee.employee_id + ".pdf");
else if (param.outputType === "blob") {
const blobOutput = doc.output("blob");
returnObj = {
...returnObj,
blob: blobOutput,
};
} else if (param.outputType === "datauristring") {
returnObj = {
...returnObj,
dataUriString: doc.output("datauristring", {
filename: param.fileName,
}),
};
} else if (param.outputType === "arraybuffer") {
returnObj = {
...returnObj,
arrayBuffer: doc.output("arraybuffer"),
};
} else
doc.output(param.outputType, {
filename: param.employee.name + props.fileName + param.employee.employee_id,
});
return returnObj;
} //returns number of pages created
module.exports = { jsPDFInvoiceTemplate, OutputType }
Шаг 7: Внутри api.js
const express = require('express')
const router = express.Router()
const { jsPDFInvoiceTemplate, OutputType } = require('./ExperienceCertificate')
router.post('/new_exp_certi', async (request, response) => {
var props = {
outputType: OutputType.Save,
returnJsPDFDocObject: true,
fileName: "Experience Certificate",
orientationLandscape: false,
compress: true,
logo: {
src: request.body.company.company_logo_src,
type: 'PNG',
width: 53.33,
height: 26.66,
margin: {
top: 0,
left: 0
}
},
stamp: {
inAllPages: true,
src: request.body.stamp.stamp_img_src,
type: 'PNG',
width: 20,
height: 20,
margin: {
top: 0,
left: 0
}
},
company: {
name: request.body.company.name,
address1: request.body.company.address1,
address2: request.body.company.address2,
phone: request.body.company.phone,
email: request.body.company.email,
email_1: request.body.company.email1,
website: request.body.company.website,
pan: request.body.company.pan,
},
signature: {
sign_img_src: request.body.signature.sign_img_src,
name: request.body.signature.name,
designation: request.body.signature.designation
},
document: {
label: "Experience Certificate",
body1: `This is to certify that `,
body2: ` was employed with us for the period of `,
body3: ` to `,
body4: ` on part time basis and designated as `,
body5: `He is been a crucial part in getting profits to company by developing a portoflio Website & Mobile Application by running adcampigns on Google Ads + facebook instagram Ads.`,
body6: `We highly recommend and wish `,
body7: ` all the best in his future endeavors.`
},
employee: {
name: request.body.employee.name,
employee_id: request.body.employee.employee_id,
date_of_join: request.body.employee.date_of_join,
date_of_relieving: request.body.employee.date_of_relieving,
designation: request.body.employee.designation,
reason_for_leaving: request.body.employee.reason_for_leaving
},
footer: {
text1: "This letter is also available in our database for background verification. Please send your request to ",
text2: "Regd. Office : ",
text3: "This is system generated document with scanned signature by authorized signatory does not require company Seal.",
},
pageEnable: true,
pageLabel: "Page ",
};
jsPDFInvoiceTemplate(props)
response.status(200).send('Experience Certificate Generated')
})
module.exports = router
Шаг 8: Установите и откройте почтальон
{
"company":{
"name":"Company Name Pvt Ltd.",
"address1":"Plot/Site No: XX, XX Floor No, XX Street Name, XX Area, XX Locality, XX Postal Area",
"address2":"XX Mandal, XX Division, XX City, XX District, XX State, XX Country, XXX-XXX Pincode",
"phone":"+XX (XXX) XXX XXXX",
"email":"[email protected]",
"email1":"[email protected]",
"website":"XXX.XXXXXX.XXX",
"pan":"ABCDE1234F",
"company_logo_src":" "
},
"employee" : {
"name" : "Employee Name",
"employee_id" : "EMP123456",
"date_of_join" : "20th Mar 2023",
"date_of_relieving" : "Present",
"designation" : "Jr. Mobile Application Developer",
"reason_for_leaving" : "NA"
},
"signature" : {
"name" : "Document signed by name",
"designation" : "Document signed person designation",
"sign_img_src" : "https://onlinepngtools.com/images/examples-onlinepngtools/george-walker-bush-signature.png"
},
"stamp" : {
"stamp_img_src":"https://img.freepik.com/vecteurs-libre/vecteur-conception-degrade-colore-oiseau_343694-2506.png"
}
}
Шаг 9. В терминале запустите npm start (или) nodemon index.js.
Шаг 9. В Postman вызовите POST API
https://localhost:4000/new_exp_certi.
Шаг 10: Теперь внутри папки (мы создали ее на шаге 1) будет создан PDF-файл.
