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README.md

Grape API w/ Versioning Fallback

Build Status

A Grape API mounted on Rack with two versions where v2 builds incrementally on top of v1. In this example the only_in_v1 method is only implemented on version v1, the root method is implemented on both versions, etc.

Run

$ bundle install
$ rackup

Try

# without a version

curl http://localhost:9292/
{"version":"v2"}

curl http://localhost:9292/only_in_v1
{"only_in_v1":"true"}

curl http://localhost:9292/in_both_v1_and_v2
{"in_both_v1_and_v2":"v2"}

# version v2 (current)

Implemented in v2.

curl http://localhost:9292 -H "Accept:application/vnd.acme-v2+json"
{"version":"v2"}

Implemented in v1 and inherited by v2.

curl http://localhost:9292/only_in_v1 -H "Accept:application/vnd.acme-v2+json"
{"only_in_v1":"true"}

Implemented in v2.

curl http://localhost:9292/only_in_v2 -H "Accept:application/vnd.acme-v2+json"
{"only_in_v2":"true"}

curl http://localhost:9292/in_both_v1_and_v2 -H "Accept:application/vnd.acme-v2+json"
{"in_both_v1_and_v2":"v2"}

# version v1 (old)

curl http://localhost:9292 -H "Accept:application/vnd.acme-v1+json"
{"version":"v1"}

curl http://localhost:9292/only_in_v1 -H "Accept:application/vnd.acme-v1+json"
{"only_in_v1":"true"}

curl http://localhost:9292/in_both_v1_and_v2 -H "Accept:application/vnd.acme-v1+json"
{"in_both_v1_and_v2":"v1"}

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Demonstrate versioning fallback in Grape.

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