[RPC] Static swagger (#3880)

* manually swagging

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* three definitions with polymorphism

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* added blockchain and block

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* low quality generation, commit, block_response and validators

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* genesis and consensus states endpoints

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* fix indentation

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* consensus parameters

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* fix indentation

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* add height to consensus parameters endpoint

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* unconfirmed_txs and num_unconfirmed_txs

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* add missing query parameter

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* add ABCI queries

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* added index document for swagger documentation

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* add missing routes

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* contract tests added on CCI

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* contract tests job should be in the test suite

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* simplify requirements to test

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* typo

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* build is a prerequisite to start localnet

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* reduce nodejs size, move goodman to get_tools, add docs, fix comments

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* Update scripts/get_tools.sh

That's cleaner, thanks!

Co-Authored-By: Anton Kaliaev <anton.kalyaev@gmail.com>

* xz not supported by cci image, let's keep it simple

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* REMOVE-indirect debug of CCI paths

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* dirty experiment, volume is empty but binary has been produced

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* dirty experiment, volume is empty but binary has been produced

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* dirty experiment going on

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* locally works, CCI have difficulties with second layaer containers volumes

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* restore experiment, use machine instead of docker for contract tests

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* simplify a bit

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* rollback on machine golang

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* Document the changes

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* Changelog

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

* comments

Signed-off-by: Karoly Albert Szabo <szabo.karoly.a@gmail.com>

CONTRIBUTING.md

@@ -183,3 +183,16 @@ If they have `.go` files in the root directory, they will be automatically
 tested by circle using `go test -v -race ./...`. If not, they will need a
 `circle.yml`. Ideally, every repo has a `Makefile` that defines `make test` and
 includes its continuous integration status using a badge in the `README.md`.
+
+### RPC Testing
+
+If you contribute to the RPC endpoints it's important to document your changes in the [Swagger file](./docs/spec/rpc/swagger.yaml)
+To test your changes you should install `nodejs` version `v11.15.*` and run:
+
+```bash
+npm i -g dredd
+make build-linux build-contract-tests-hooks
+make contract-tests
+``` 
+
+This command will popup a network and check every endpoint against what has been documented