Command Line Reference

harp

HTTP Application Runtime Proxy (HARP)

The following commands are available to help you setup and run your HTTP proxy application.

harp [OPTIONS] COMMAND [ARGS]...

create

Creates a new project using cookiecutter.

harp create [OPTIONS] {project}

Arguments

TEMPLATE

Required argument

db:create-migration

harp db:create-migration [OPTIONS] MESSAGE

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

Arguments

MESSAGE

Required argument

db:feature

harp db:feature [OPTIONS] {add|remove} [FEATURES]...

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

Arguments

OPERATION

Required argument

FEATURES

Optional argument(s)

db:history

harp db:history [OPTIONS]

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

db:merge

harp db:merge [OPTIONS] MESSAGE [REVISIONS]...

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

Arguments

MESSAGE

Required argument

REVISIONS

Optional argument(s)

db:migrate

harp db:migrate [OPTIONS] {up|down} REVISION

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

--reset

Reset the database (drop all before migrations).

Arguments

OPERATION

Required argument

REVISION

Required argument

db:reset

harp db:reset [OPTIONS]

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

examples

Examples related commands.

harp examples [OPTIONS] COMMAND [ARGS]...

list

List available examples.

harp examples list [OPTIONS]

Options

--raw

Simple output without any decoration.

install-dev

Installs the development dependencies.

harp install-dev [OPTIONS]

rules

Rules engine related commands.

harp rules [OPTIONS] COMMAND [ARGS]...

lint

Lint the rules.

harp rules lint [OPTIONS]

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

run

harp rules run [OPTIONS] ENDPOINT METHOD PATH

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

Arguments

ENDPOINT

Required argument

METHOD

Required argument

PATH

Required argument

server

Starts HARP server, using the provided configuration. This is the main process and will be the only process you need on a live server, it will serve both the proxy ports and the compiled frontend assets (dashboard).

harp server [OPTIONS]

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

start

Starts the local development environment, using honcho to spawn a configurable set of processes that you can adapt to your needs. By default, it will starts the dashboard (frontend dev server) and server (python server) processes. For live instances, you’ll prefer harp server.

harp start [OPTIONS] [SERVICES]...

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

--with-docs, --no-docs

Append the sphinx doc process to the process list.

--with-ui, --no-ui

Append the storybook process to the process list.

--mock

Enable mock data instead of real api data (dashboard only).

-XS, --server-subprocess <NAME:PORT:CMD>

Add a server subprocess to the list of services to start (experimental, can be used multiple times).

Arguments

SERVICES

Optional argument(s)

system

Inspect system configuration and services.

These commands allow you to view the compiled configuration and registered services, which is useful for debugging and understanding how your HARP instance is set up.

harp system [OPTIONS] COMMAND [ARGS]...

config

Compiles and dumps the current configuration.

Example:

$ harp-proxy system config –file … –example … –set …

harp system config [OPTIONS]

Options

--raw

Prints the raw configuration as a dictionary.

--json

Prints the raw configuration as JSON.

--unsecure

Prints the configuration without hiding sensitive information.

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

services

Prints all configured services with their dependencies and configuration.

Example:

$ harp-proxy system services –file config.yml

harp system services [OPTIONS]

Options

-f, --file <files>

Load configuration from file (configuration format will be detected from file extension, can be used multiple times).

--example <examples>

Load configuration from example (can be used multiple times).

--set <options>

Add configuration options (e.g. --set foo=bar or --set foo bar, can be used multiple times).

--endpoint <endpoints>

Add an endpoint (e.g. --endpoint httpbin=4000:http://httpbin.org/, can be used multiple times).

--applications <applications>

List of applications to enable.

--enable <enable>

Enable some applications.

--disable <disable>

Disable some applications.

--strict

Enforce strict configuration validation (convert warnings to errors)

version

Show HARP version.

harp version [OPTIONS]

How to use

For PIP and source installs, it will be available as harp in your python environment.

For source installations, you may need to use uv run harp-proxy ….

Docker

For Docker installs, the harp CLI being the default command of the container you can pass arguments to the docker run command directly.

docker run -it --rm \
       makersquad/harp-proxy \
       server --endpoint httpbin=4000:https://httpbin.org

Python package

For regular python installations (for example, using pip to install it from PyPI), you’ll find the harp-proxy command in your python environment’s path, thus you’ll be able to run:

harp-proxy server --endpoint httpbin=4000:https://httpbin.org

Sources

For sources installations, the behaviour is similar to installing it from a packaged wheel (python package), but you may need to force using the right environment using uv.

uv run harp-proxy server --endpoint httpbin=4000:https://httpbin.org

Another way would be to activate the uv environment and run the command directly:

source .venv/bin/activate  # or .venv\Scripts\activate on Windows
harp-proxy server --endpoint httpbin=4000:https://httpbin.org