dploy-kickstart 0.1.2

Expose your functions as HTTP endpoints.

dploy-kickstart

Expose your Python functions via an HTTP API. dploy-kickstart is designed with a focus of making deployment of machine learning models as easy as possible with as clean of a contract as possible. This means that you will find configurations options that are less relevant outside of this domain.

Installation

pip install dploy_kickstart

When installed it provides a kickstart executable. Have a look at the help functionality: kickstart --help.

Usage

dploy_kickstart is a helper utility that can expose your Python functions as HTTP endpoints. Based on comment annotations it wraps your chosen functions to be served as API endpoints.

Let's say you have a script.py with @dploy comment annotations:

# @dploy endpoint echo
def echo_func(payload):
    return payload

Serve this function with:

kickstart serve -e script.py

Let's try to call the endpoint via curl.

$ curl -d '{"foo":"bar"}' -H "Content-Type: application/json" -X POST http://localhost:8080/echo/

{"foo":"bar"}

Annotations

Following annotation options are currently available.

• # @dploy endpoint {endpoint_path}
  Will expose the annotated function on path {endpoint_path} with trailing slash (and redirect without trailing slash).
• # @dploy response_mime_type {mimetype}
  Specify response mime type, will wrap function response accordingly. default: application/json
  available: application/json
• # @dploy request_content_type {content_type}
  Specify allowed request content type.
  default: application/json available: application/json
• # @dploy request_method {method}
  Specify allowed request method.
  default: post
  available: any method supported by Flask
• # @dploy json_to_kwargs
  Will map json payload's keys to function kwargs if supplied.

Endpoint utilities

Following paths are generated automatically:

• GET /healthz: that always returns a 200
• GET /openapi.yaml: autogenerated OpenAPI Spec (WIP)

Current dependency tree

Aim is to keep this as small as possible to not clutter the user space.

$ poetry show --no-dev --tree

apispec 3.3.0 A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification).
click 7.1.2 Composable command line interface toolkit
flask 1.1.2 A simple framework for building complex web applications.
├── click >=5.1
├── itsdangerous >=0.24
├── jinja2 >=2.10.1
│   └── markupsafe >=0.23 
└── werkzeug >=0.15
paste 3.4.0 Tools for using a Web Server Gateway Interface stack
└── six >=1.4.0
waitress 1.4.3 Waitress WSGI server