Initializing help system before first use

# s3objectexists

Purpose
Checks if an S3 object exists
Synopsis
`function s3objectexists(bucket:s3bucket, objectkey:text):boolean`
Arguments

bucket | The s3bucket object describing the bucket to access
objectkey | The key of the object to check

Return value
true if an object with the given key exists in the bucket, false if it does not.
Example

    declarations
      ifexists: boolean
    end-declarations
    ifexists := s3objectexists(mybucket,"my/file.dat")
    if s3status(mybucket)<>S3_OK then
      writeln("Error returned by S3: ",s3getlasterror(mybucket))
      exit(1)
    end-if
    if ifexists then
      writeln("Object exists")
    else
      writeln("Object does not exist")
    end-if

Further information
1. After calling, check the value of s3status for any errors.
2. If the s3bucket has a configured keyprefix, it will be prepended to the objectkey passed in.
Related topics
s3status
Parent Topic Subroutines

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