Get progress of readMessages

[khvr000]

I want to show the progress of reading the file, something like progress bar.How to get the progress of how much of file has been parsed/read.

Please provide info If I have overlooked already existing properties.

[jtbandes]

The ReadResult contains progress info at the level of chunks:

  // the offset of the chunk being read
  // starts at 0 and eventually increments to totalChunks
  // useful for computing read progress as a percentage
  chunkOffset: number,

  // the total chunks to eventually be consumed
  // during the current read operation
  totalChunks: number,

[janpaul123]

If you're just reading the entire bag, you can determine how many messages there are in each topic by using bag.chunkInfos. Each ChunkInfo has a list of "connections" and how many messages there are for that connection. You can map back connections to topic names using bag.connections.