Google APIs Client library for OCaml

gapi-ocaml is a simple, unofficial, OCaml client for Google Services. The library supports ClientLogin, OAuth 1.0a, and OAuth 2.0 authentication. Supported RESTful APIs:

• Calendar APIs v3
• Google+ API v1
• Tasks API v1
• APIs Discovery Service v1
• URL Shortener API v1
• OAuth2 API v2
• Custom Search API v1
• Google Analytics API v3
• Page Speed Online API v1
• Blogger API v2
• Site Verification API v1
• AdSense Management API v1.1
• BigQuery API v2
• Drive API v2
• Drive API v3
• Gmail API v1

Features

• Monadic interface
• Functional lenses to access data structures
• Service generator (experimental): a tool for generating client libraries for APIs based on the Google API Discovery format

Building gapi-ocaml

Requirements

You will need the following libraries:

• OCaml >= 4.02.3
• Findlib >= 1.2.7
• Ocamlnet >= 4.1.4
• Ocurl >= 0.5.3
• Cryptokit >= 1.3.14
• Yojson >= 1.6.0
• Xmlm >= 1.0.2
• OUnit >= 1.1.0 (to build and run the tests, optional)

This library was developed and tested on Ubuntu LTS (64-bit).

Configuration and installation

To build the library, run

$ make

To install the library, run (as root, if your user doesn't have enough privileges)

$ make install

To build and run the tests, execute

$ make test

See src/test/README.md for further details regarding the tests.

To build the examples:

$ dune build @examples

See examples/README.md for further details regarding the examples.

To generate the documentation, run

$ make doc

Then you can browse the HTML documentation starting from gapi-ocaml.docdir/index.html, but is not installed by default.

To uninstall anything that was previously installed, execute

$ make uninstall

Usage

See auth examples in examples/auth for some examples of how to use Google's authorization endpoints.

See examples directory to find code samples that show usage of some services.

See tools/serviceGenerator.ml for a complex example of how to use functional lenses within the state monad.

See tools/README.md for the instructions of how to build and run the service generator utility.

Ocamlnet

To support OCaml 5, I removed the direct dependency on Ocamlnet. To do so, I imported (in the src directory) the netstring and netsys libraries from upstream, applied the patches from this PR, and further patched the code to compile and run correctly.