How to convert document to PDF for DOC to PDF API in Salesforce using PDF.co Web API

PDF.co Web API: the flexible Web API that includes full set of functions from e-signature requests to data extraction, OCR, images recognition, pdf splitting and pdf splitting. Can also generate barcodes and read barcodes from images, scans and pdf.

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DOCTOPDFConvertor.cls

      
public class DOCTOPDFConvertor { String API_KEY = '"*****************************************'; @TestVisible String fileName = 'sample'; // File name "sample.docx" which is available in Files. string DestinationFile = 'result.pdf'; //This is the Desitantion File Name. public void convertDocxToPdf() { ContentVersion cv = [select Title, VersionData from ContentVersion where Title = :fileName limit 1]; Blob SourceFile = cv.VersionData; try { //1. Prepare URL for "Get Presigned URL" API call string url = 'https://api.pdf.co/v1/file/upload/get-presigned-url?contenttype=application/octet-stream&name=:fileName'; HttpRequest req = new HttpRequest(); req.setHeader('x-api-key', API_KEY); req.setEndpoint(url); req.setMethod('GET'); req.setTimeout(60000); Http http = new Http(); HTTPResponse res = http.send(req); if(res.getStatusCode() == 200) { System.Debug('res ' + res); Map<String, Object> deserializedBody = (Map<String, Object>)JSON.deserializeUntyped(res.getBody()); Boolean isError = Boolean.ValueOf(deserializedBody.get('error')); if(isError == false) { // Get URL to use for the file upload String uploadUrl = String.ValueOf(deserializedBody.get('presignedUrl')); // Get URL of uploaded file to use with later API calls String uploadedFileUrl = String.ValueOf(deserializedBody.get('url')); // 2. UPLOAD THE FILE TO CLOUD. if(uploadFile(API_KEY, uploadUrl, SourceFile)) { // 3. CONVERT UPLOADED DOC (DOCX) FILE TO PDF and download. ConvertDocToPdf(API_KEY, DestinationFile, uploadedFileUrl); } } } else { System.debug('Error Response ' + res.getBody()); System.Debug(' Status ' + res.getStatus()); System.Debug(' Status Code' + res.getStatusCode()); System.Debug(' Response String' + res.toString()); } } catch(Exception ex) { String errorBody = 'Message: ' + ex.getMessage() + ' -- Cause: ' + ex.getCause() + ' -- Stacktrace: ' + ex.getStackTraceString(); System.Debug(errorBody); } } @TestVisible public static boolean uploadFile(String API_KEY, String url, Blob sourceFile) { HttpRequest req = new HttpRequest(); req.setHeader('x-api-key', API_KEY); req.setHeader('Content-Type', 'application/octet-stream'); req.setEndpoint(url); req.setMethod('PUT'); req.setTimeout(60000); req.setBodyAsBlob(sourceFile); Http http = new Http(); HTTPResponse res = http.send(req); if(res.getStatusCode() == 200) { System.Debug(res); return true; } else { System.debug('Error Response ' + res.getBody()); System.Debug(' Status ' + res.getStatus()); System.Debug(' Status Code' + res.getStatusCode()); System.Debug(' Response String' + res.toString()); return false; } } public static void ConvertDocToPdf(String API_KEY, String DestinationFile, String uploadedFileUrl) { Map<string, object> parameters = new Map<string, object>(); parameters.put('name', DestinationFile); parameters.put('url', uploadedFileUrl); string jsonPayload = Json.serialize(parameters); String url = 'https://api.pdf.co/v1/pdf/convert/from/doc'; HttpRequest req = new HttpRequest(); req.setHeader('x-api-key', API_KEY); req.setHeader('Content-Type', 'application/json'); req.setEndpoint(url); req.setMethod('POST'); req.setTimeout(60000); req.setBody(jsonPayload); Http http = new Http(); HTTPResponse res = http.send(req); if(res.getStatusCode() == 200) { System.Debug(res); Map<String, Object> deserializedBody = (Map<String, Object>)JSON.deserializeUntyped(res.getBody()); Boolean isError = Boolean.ValueOf(deserializedBody.get('error')); if(isError == false) { String resultFileUrl = String.ValueOf(deserializedBody.get('url')); downloadPDFAndStore(resultFileUrl, DestinationFile); } } else { System.debug('Error Response ' + res.getBody()); System.Debug(' Status ' + res.getStatus()); System.Debug(' Status Code' + res.getStatusCode()); System.Debug(' Response String' + res.toString()); } } @TestVisible private static void downloadPDFAndStore(String extFileUrl, String DestinationFile) { Http h = new Http(); HttpRequest req = new HttpRequest(); extFileUrl = extFileUrl.replace(' ', '%20'); req.setEndpoint(extFileUrl); req.setMethod('GET'); req.setHeader('Content-Type', 'application/pdf'); req.setCompressed(true); req.setTimeout(60000); //Now Send HTTP Request HttpResponse res = h.send(req); if(res.getStatusCode() == 200) { blob fileContent = res.getBodyAsBlob(); ContentVersion conVer = new ContentVersion(); conVer.ContentLocation = 'S'; // to use S specify this document is in Salesforce, to use E for external files conVer.PathOnClient = DestinationFile + '.pdf'; // The files name, extension is very important here which will help the file in preview. conVer.Title = DestinationFile; // Display name of the files conVer.VersionData = fileContent; insert conVer; System.Debug('Success'); } else { System.debug('Error Response ' + res.getBody()); System.Debug(' Status ' + res.getStatus()); System.Debug(' Status Code' + res.getStatusCode()); System.Debug(' Response String' + res.toString()); } } }

DOCTOPDFConvertorTest.cls

      
@isTest private class DOCTOPDFConvertorTest { @TestSetup static void makeData(){ ContentVersion conVer = new ContentVersion(); conVer.ContentLocation = 'S'; // to use S specify this document is in Salesforce, to use E for external files conVer.PathOnClient = 'DestinationFile.pdf'; // The files name, extension is very important here which will help the file in preview. conVer.Title = 'Sample'; // Display name of the files conVer.VersionData = Blob.ValueOf('fileContent'); insert conVer; } private testmethod static void testconvertDocxToPdf() { Test.setMock(HttpCalloutMock.class, new DOCTOPDFConvertorTest.DocumentCreationMock()); DOCTOPDFConvertor dc = new DOCTOPDFConvertor(); dc.fileName = 'Sample'; Test.startTest(); dc.convertDocxToPdf(); Test.stopTest(); List<ContentVersion> cv = [select Id from ContentVersion]; System.assertEquals(2, cv.size()); } private testmethod static void testuploadFile() { Test.setMock(HttpCalloutMock.class, new DOCTOPDFConvertorTest.DocumentCreationErrorMock()); Test.startTest(); Boolean result = DOCTOPDFConvertor.uploadFile('abc', 'https://www.google.com', Blob.ValueOf('fileContent')); Test.stopTest(); System.assertEquals(false, result); } private testmethod static void testconvertDocxToPdfError() { DOCTOPDFConvertor dc = new DOCTOPDFConvertor(); dc.fileName = 'Sample'; Test.startTest(); dc.convertDocxToPdf(); Test.stopTest(); List<ContentVersion> cv = [select Id from ContentVersion]; System.assertEquals(1, cv.size()); } public class DocumentCreationMock implements HttpCalloutMock { public HTTPResponse respond(HTTPRequest req) { HttpResponse res = new HttpResponse(); String testBody = '{"presignedUrl":"https://pdf-temp-files.s3-us-west-2.amazonaws.com/0c72bf56341142ba83c8f98b47f14d62/test.pdf?X-Amz-Expires=900&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIZJDPLX6D7EHVCKA/20200302/us-west-2/s3/aws4_request&X-Amz-Date=20200302T143951Z&X-Amz-SignedHeaders=host&X-Amz-Signature=8650913644b6425ba8d52b78634698e5fc8970157d971a96f0279a64f4ba87fc","url":"https://pdf-temp-files.s3-us-west-2.amazonaws.com/0c72bf56341142ba83c8f98b47f14d62/test.pdf?X-Amz-Expires=3600&x-amz-security-token=FwoGZXIvYXdzEGgaDA9KaTOXRjkCdCqSTCKBAW9tReCLk1fVTZBH9exl9VIbP8Gfp1pE9hg6et94IBpNamOaBJ6%2B9Vsa5zxfiddlgA%2BxQ4tpd9gprFAxMzjN7UtjU%2B2gf%2FKbUKc2lfV18D2wXKd1FEhC6kkGJVL5UaoFONG%2Fw2jXfLxe3nCfquMEDo12XzcqIQtNFWXjKPWBkQEvmii4tfTyBTIot4Na%2BAUqkLshH0R7HVKlEBV8btqa0ctBjwzwpWkoU%2BF%2BCtnm8Lm4Eg%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIA4NRRSZPHEGHTOA4W/20200302/us-west-2/s3/aws4_request&X-Amz-Date=20200302T143951Z&X-Amz-SignedHeaders=host;x-amz-security-token&X-Amz-Signature=243419ac4a9a315eebc2db72df0817de6a261a684482bbc897f0e7bb5d202bb9","error":false,"status":200,"name":"test.pdf","remainingCredits":98145}'; res.setHeader('Content-Type', 'application/json'); res.setBody(testBody); res.setStatusCode(200); return res; } } public class DocumentCreationErrorMock implements HttpCalloutMock { public HTTPResponse respond(HTTPRequest req) { HttpResponse res = new HttpResponse(); String testBody = '{"presignedUrl":"https://pdf-temp-files.s3-us-west-2.amazonaws.com/0c72bf56341142ba83c8f98b47f14d62/test.pdf?X-Amz-Expires=900&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIZJDPLX6D7EHVCKA/20200302/us-west-2/s3/aws4_request&X-Amz-Date=20200302T143951Z&X-Amz-SignedHeaders=host&X-Amz-Signature=8650913644b6425ba8d52b78634698e5fc8970157d971a96f0279a64f4ba87fc","url":"https://pdf-temp-files.s3-us-west-2.amazonaws.com/0c72bf56341142ba83c8f98b47f14d62/test.pdf?X-Amz-Expires=3600&x-amz-security-token=FwoGZXIvYXdzEGgaDA9KaTOXRjkCdCqSTCKBAW9tReCLk1fVTZBH9exl9VIbP8Gfp1pE9hg6et94IBpNamOaBJ6%2B9Vsa5zxfiddlgA%2BxQ4tpd9gprFAxMzjN7UtjU%2B2gf%2FKbUKc2lfV18D2wXKd1FEhC6kkGJVL5UaoFONG%2Fw2jXfLxe3nCfquMEDo12XzcqIQtNFWXjKPWBkQEvmii4tfTyBTIot4Na%2BAUqkLshH0R7HVKlEBV8btqa0ctBjwzwpWkoU%2BF%2BCtnm8Lm4Eg%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIA4NRRSZPHEGHTOA4W/20200302/us-west-2/s3/aws4_request&X-Amz-Date=20200302T143951Z&X-Amz-SignedHeaders=host;x-amz-security-token&X-Amz-Signature=243419ac4a9a315eebc2db72df0817de6a261a684482bbc897f0e7bb5d202bb9","error":false,"status":200,"name":"test.pdf","remainingCredits":98145}'; res.setHeader('Content-Type', 'application/json'); res.setBody(testBody); res.setStatusCode(201); return res; } } }

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