Use native mysql client library in AWS Lambda through serverless

README.md

Non-native mysql clients such as pymysql perform much slower than the native mysql client. Here’s how to get the native client working with lambda (through serverless):

1. Download layers.zip from this repo https://github.com/nonbeing/mysqlclient-python3-aws-lambda/tree/master/build_output
2. Move it to <project_root>/layers/mysqlclient.zip
3. Add this to serverless.yml:

layers:
 mysqlclient:
   name: list-lambda-${opt:stage}-mysqlclient
   package:
     artifact: layers/mysqlclient.zip
functions:
 app:
   layers:
     - {Ref: MysqlclientLambdaLayer}

4. Make sure that mysqlclient is in your Pipfile or requirements.txt