* [ ] add coverage [cmd/document/pdf.go#L76](https://codecov.io/gh/opsway/documents/src/master/cmd/document/pdf.go#L76) * [ ] add coverage [api/handlers.go#L22](https://codecov.io/gh/opsway/documents/src/master/api/handlers.go#L22) * [ ] add coverage [api/handlers.go#L29](https://codecov.io/gh/opsway/documents/src/master/api/handlers.go#L29) * [ ] add coverage [api/handlers.go#L53](https://codecov.io/gh/opsway/documents/src/master/api/handlers.go#L53) * [x] add coverage [api/server.go#L9...23](https://codecov.io/gh/opsway/documents/src/master/api/server.go#L9...23)
