Ukázková Architektura
Začínáme logickou strukturou softwaru, která definuje všechny podstatné komponenty, jejich vlastnosti a reakce.
Ukázkový Backend
Druhým krokem je napsat v Javě nebo Kotlinu takový kód, aby komunikace s databází proběhla při každé akci uživatele bez mrknutí.
extend type Query {
getCurrencies: [CurrencyTO]
getI0Wizard (wizardId: String!): I0WizardTO
}
input IOWizardInput{
id: String!
adminEmails: [String]! #Send only editable emails.
periodType: EPeriodType
periodStart: Instant
baseCurrency: String
domainName: String
warehouseName: String
safetyStock: Boolean
planType: EPLanType
}
extend type Mutation {
saveI0Wizard(wizard: IOWizardInput):I0WizardTO
}
type IOWizardTO{
id: String!
domainName: String
domainEditable: Boolean
adminEmails: [EmailTo]!
periodType: EPeriodType
periodStart: Instant
baseCurrency: String
warehouseName: String
safetyStock: Boolean
planType: EPLanType
}
@Component
@RequiredArgsConstructor
public class IOWizardMutationResolver implements GraphQLMutationResolver {
private final OnboardWizardService wizardService;
private final TenantService tenantService;
@PreAuthorize ("isAnonymous()")
@Transactional
public I0WizardTO saveI0Wizard(I0WizardInput wizard) {
I0Wizard wizardEntity = mapToEntity(wizard);
Tenant tenant = wizardEntity.getTenant();
if (tenant.isDomainNameEditable() && (wizard.getDomainName () != null)) {
String domain = wizard.getDomainName();
if (!tenantService.isDomainNameFree (domain) && !domain.equals (tenant.getDomainName()))
throw new IllegalArgumentException("Domain is already used!", domain);
tenant.setDomainName(domain);
}
wizardService.saveWizard(wizardEntity);
return I0WizardTO.fromEntity(wizardEntity);
}
@Component
@RequiredArgsConstructor
public class I0WizardQueryResolver implements GraphQLQueryResolver {
private final OnboardWizardService wizardService;
@PreAuthorize ("isAnonymous()")
public IOWizardTO getI0Wizard(String wizardId) {
return IOWizardTO.fromEntity((I0Wizard) wizardService.getWizardById(wizardId)
.filter(t -> EWizardStatus.IN_PROGRESS.equals(t.getWizardStatus()))
.filter(t -> t instanceof I0Wizard)
.orElseThrow(C) -> new NotFoundException ("Wizard not found.", IOWizardTo.class.getSimpleName(), wizardId))
);
}
}
@Slf4j
@RequiredArgsConstructor
public abstract class AbstractOnboardWizardService<T extends OnboardWizard> implements OnboardWizardService {
protected final OnboardWizardRepository wizardRepository;
@Override
public Optional<OnboardWizard> getWizardById (String wizardId) {
return wizardRepository.findById(wizardId);
}
@Override
public void saveWizard (OnboardWizard wizard) {
this.wizardRepository.saveAndFlush(wizard);
}
}
Ukázkový Frontend
Nakonec tvoříme s MUI krásná grafická rozhraní, ve kterých se koncový uživatel cítí jako doma i mimo homepage.
