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New2API's avatar
New2API
Frequent Contributor
3 years ago

How to encode a PDF file to base64 in groovy?

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...
Scripting
  • New2API's avatar
    New2API
    3 years ago

    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")

richie's avatar
richie
Community Hero
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's avatar
New2API
Frequent Contributor
3 years ago

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")

    • New2API's avatar
      New2API
      Frequent Contributor
      3 years ago

      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