harf 0.1.0

Tools for processing har files

A package of utilities for parsing, analyzing, and displaying data in har files. Particularly in relation to helping develop locust performance test scripts.

HarF is heavily biased towards REST(ish) json based apis

Currently the project only provides a CLI and library to help track data through a har file. The CLI (correlations) displays what data is used where in a har file, some basic filters, and two ways to interact with the data. For example, if you use the tests/example1.har file you get the following output.

Value ('products') used in:  
   "entry_0.request.url[0]"  
  
Value (1) used in:  
   "entry_0.response.body[0].id",  
   "entry_1.request.url[1]",  
   "entry_1.response.body[0].id",  
   "entry_2.request.body.productId"  
  
Value ('test') used in:  
   "entry_0.response.body[0].name",  
   "entry_1.response.body[0].name"  
  
Value ('product') used in:  
   "entry_1.request.url[0]"  
  
Value (1.1) used in:  
   "entry_1.response.body[0].price"  
  
Value ('cart') used in:  
   "entry_2.request.url[0]"

For small har files this basic view is probably sufficient. However, once you start getting into larger files with hundreds of requests and dozens of values that need to be tracked this text output is a lot to go through. With -i you will be dropped into a python shell with the har data and correlation info to inspect and manipulate the data as needed. And because I am an obsidian nerd -o <vault_path> will output a bunch of markdown files to the vault_path where every request, response, and used value gets their own file and are back-linked through usage.