How can I set the log_stream_prefix to get the cloudwatch data from lambda

Question

I am trying to get the log from the cloudwatch

my source code is like this below

I can find the group_name in cloudwatch console /aws/lambda/mylambda

logGroupName = "/aws/lambda/mylambda"

response = logs.describe_log_streams(
        logGroupName=group_name,
        logStreamNamePrefix=log_stream_name_prefix,
        orderBy='LogStreamName',
        descending=True,
    )

however, example my log_stream_name is changed like this below.

2023/05/01/[$LATEST]e6a2f85f7eb74aa9bde07837fc971df7
2023/04/30/[$LATEST]39b7ffa511434a65ba4bb4bd915485fd
2023/04/29/[$LATEST]3c2c75965ef2422f86b1624ef042d54b

What should I set for log_stream_name_prefix?

Answer 1

It is asking for the prefix (the first part of the name) not the full name. So for example to query all log streams for the day of 2023/04/29 the log stream prefix would be: 2023/04/29/[$LATEST]