How to encode a PDF file to base64 in groovy?

[New2API]

Hi, I am using below script to encode a PDF file. However, file gets corrupted when decoding or an API uploads it to a specific location.

Can you please point out if there is a better way or correct way to encode a PDF file using groovy script.

import net.sf.*
import groovy.io.FileType

//## Get Directories ##//
def projectPath = context.expand('${projectDir}')
def filePath = context.expand( '${#Project#TestDataPath}' ) 
def docName = context.expand( '${#TestCase#fileName}' )

//## get file ##//
log.info "get pdf from $dumpFilePath"
testFile = new File(filePath + "$docName").text

//Encode file to Base64 format
log.info "Encoding the file..."
encodedFile = "$testFile".getBytes("UTF-8").encodeBase64().toString()

log.info "Updating encoded file at testCase level property testFile"
testRunner.testCase.setPropertyValue("testFile", "$encodedFile")

I also tried - encodedFile = "$testFile".bytes.encodeBase64().toString(). But same result.

TIA.

[richie]

Hey @New2API

I think.....bit of a guess here as im not a groovy whizz (@ChrisAdams.....where are you? ), but "i think" it depends on what youre trying to encode.... i think your encode line is the groovy for encoding a string....not something wrapped up into a partially compressed file like a .pdf. that's a total guess on my part, but i think that "might" be the reason its not encoding as required.

I'll have a look (suggest you do the same) to see if you can 1. See if my guess is correct and 2. If it is, find out how to encode a file rather than a string.

Im probably wrong....i normally am whenever i try guessing.

Oh. Have you got the right import declarations? ( guessing you have otherwise your error would likely be obvious....)

Cheers,

Rich

[New2API · Accepted solution]

@richie, that's what even I thought too. couldn't find any groovy native function to do this. but ended up using Java snippet.

Here is the updated code:

import java.io.File
import java.nio.file.Files
import java.util.Base64

//## Get Directories ##//
def dumpFilePath = context.expand( '${#Project#TestDataPath}' )
def docName = context.expand( '${#TestCase#fileName}' )

//## Encode file to Base64 format ##//
log.info "get pdf file from $dumpFilePath"
testFile = new File(dumpFilePath + "$docName")

log.info "Encoding the file..."
byte [] bytes = Files.readAllBytes(testFile.toPath())
String encodedFile = Base64.getEncoder().encodeToString(bytes)

log.info "Updating encoded file at testCase level property testFile"
testRunner.testCase.setPropertyValue("testFile", "$encodedFile")

[AlexKaras]

Hi,

Does https://support.smartbear.com/readyapi/docs/testing/scripts/samples/encode.html help somehow ?

Especially, this line

encodedFile = "$testFile".getBytes("UTF-8").encodeBase64().toString()

seems missing 'bytes' call:

encodedFile = "$testFile".getBytes("UTF-8").bytes.encodeBase64().toString()

[New2API]

@AlexKaras , I tried this solution and it didn't work for a PDF file.

Below code worked from me.

byte [] bytes = Files.readAllBytes(TestFile.toPath());
String EncodedFile = Base64.getEncoder().encodeToString(bytes)

thanks,

Sunil