* Remove helper func getCommitmentAddress.
This function is only used in one place so removing it does not introduce any duplication. Removing the func also removes the need for errors.Is comparison, which will be very useful in upcoming changes.
* Rename apiError to ErrorCode.
* Don't use inline type for API errors.
* Export webapi errors.
* Export webapi request/responses.
* Add types module for API requests/responses/errors
- Rather than manually downloading and invoking golangci-lint, use the GitHub
action provided by the developers.
- Configure golangci with a config file rather than passing command line args.
This enables the same config to be used locally and on CI without introducing
duplication. It also allows much more flexibililty in configuration than using
CLI args alone.
* Use features from Go 1.16 tooling.
- GO111MODULE environment variable now defaults to "on"
- "go build" and "go test" now exit with an error rather than silently modifying go.mod or go.sum files
- Update README.md
* Don't use deprecated ioutil package.
