Initializing help system before first use

s3listobjects

s3listobjects

Purpose
Lists the objects in the bucket
Synopsis
procedure s3listobjects(bucket:s3bucket, prefix:text, delimiter:text, result:s3objectlist)
procedure s3listobjects(bucket:s3bucket, prefix:text, result:s3objectlist)
Arguments
bucket 
The s3bucket object describing the bucket to access
prefix 
The object prefix to search for
delimiter 
The object delimiter, or "" for no delimiter. If a delimiter is specified, then any objects containing this string after the prefix will not be returned in result.objects, but each unique string between the prefix and the next occurrence of this delimiter will be returned in result.commonprefixes
result 
Record structure to retrieve
Example 
declarations
  myresult: s3objectlist
end-declarations
repeat
  s3listobjects( mybucket, "myprefix/", myresult )
  if s3status(mybucket)<>S3_OK then
    writeln("Error returned by S3: ",s3getlasterror(mybucket))
    exit(1)
  end-if
  forall (o in myresult.objects) do
    writeln('Found object with key ',o.key)
  end-do
until not myresult.istruncated
Further information
1. After calling, check the value of s3status for any errors.
2. As the number of objects in an S3 bucket can be very large, this function may return a truncated list of the keys. If this is the case, the istruncated flag of the s3objectlist will be set to 'true' and you should call s3listobjects again, passing the same record, to retrieve the next batch of object keys.
3. If the s3bucket has a configured keyprefix, it will be prepended to the prefix specified by the s3listobjects request
4. If the s3bucket has a configured keyprefix, it will be stripped from the keys and prefixes returned in the s3objectlist
Related topics
s3status s3_maxkeys s3objectlist

Parent Topic Subroutines

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