Autogenerate the SDK from the OpenAPI spec (3.0.0) (#102)

* Use nullable reference types and datetimeoffset

* Mark non-required types as nullable

* Add required keyword to required properties

* Mark API method parameters as optional

* Allow SDK to handle No Content (204) responses

Previously, the SDK would throw an exception when trying to parse an empty string.
Now we will return the empty string, if a string response is requested.

If the caller was expecting a deserialized type, an exception will still be raised for no content.

* Remove version from generated files

Including the version in every file causes every file to be modified
any time the generator is run. This creates a large diff that obscures the actual changes.
The version is already known in the generation/swagger.json file.

Add warning that file is generated and should not be modified.

* Verify can deserialize create label response

Convert doubles to decimals

* Add optional error properties

Allow arbitrary values in advanced_options.

* added A4 and A6 to label layout enum

* Mark v2 methods as obsolete

* Add generated documentation

* Update supported .NET versions

---------

Co-authored-by: Joshua Flanagan <joshuaflanagan@gmail.com>
Co-authored-by: Matt Burton <matt.burton@gmail.com>
Co-authored-by: Joe Pill <joe.pill@auctane.com>
Co-authored-by: Bibhusan-Shah <bibhusan.shah@auctane.com>
Co-authored-by: Bibhusan-Shah <87672403+Bibhusan-Shah@users.noreply.github.com>

Author: 6 people

.github/workflows/ci-cd.yaml

@@ -75,25 +75,6 @@ jobs:
           ls -Rlh ShipEngineSDK.Test/TestResults/*/coverage.info
           cat ShipEngineSDK.Test/TestResults/*/coverage.info > ShipEngineSDK.Test/TestResults/lcov.info
 
-      - name: Send code coverage results to Coveralls
-        uses: coverallsapp/github-action@v1.1.0
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          parallel: true
-          flag-name: run-${{ matrix.test_number }}
-          path-to-lcov: ShipEngineSDK.Test/TestResults/lcov.info
-
-  coverage:
-    name: Code Coverage
-    needs: dot_net_core_test
-    runs-on: ubuntu-latest
-    steps:
-      - name: Coveralls Finished
-        uses: coverallsapp/github-action@master
-        with:
-          github-token: ${{ secrets.github_token }}
-          parallel-finished: true
-
   nuget-deploy:
     runs-on: ubuntu-latest
     needs: [dot_net_framework_test, dot_net_core_test]

.openapi-generator-ignore

@@ -26,11 +26,13 @@
 **/*.csproj
 appveyor.yml
 git_push.sh
+ShipEngineSDK/Api/IApi.cs
 ShipEngineSDK/Client/*.cs
+ShipEngineSDK/Extensions/*.cs
 
 # We should re-enable these eventually
-README.md
-docs/*.md
+*/README.md
+docs/scripts/*
 ShipEngineSDK.Test/*/*.cs
 api/**
 .gitignore