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Use when validating EU VAT numbers from NestJS APIs.
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Basierend auf der SOC-Berufsklassifikation
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| name | getting-started |
| description | Use when validating EU VAT numbers from NestJS APIs. |
Use @wisemen/vies when a NestJS service needs to validate a VAT number against the VIES REST API.
import { Module } from '@nestjs/common'
import { ViesModule } from '@wisemen/vies'
@Module({
imports: [ViesModule],
...
})
export class CreateBusinessModule {}
ViesClientimport { Injectable } from '@nestjs/common'
import { CountryCode, ViesCheckVatNumberCommandBuilder, ViesClient } from '@wisemen/vies'
@Injectable()
export class CreateBusinessUseCase {
constructor(
private viesClient: ViesClient
) {}
...
private async validateVat(vatNumber: string, cc: CountryCode) {
const command = new ViesCheckVatNumberCommandBuilder()
.withCountryCode(cc)
.withVatNumber(vatNumber)
.build()
return await this.viesClient.checkVatNumber(command)
}
}
checkVatNumber(...) returns ViesCheckVatNumberResponse and throws ViesUnavailableError when the VIES service is temporarily unavailable.
The response format is
export interface ViesCheckVatNumberResponse {
countryCode: CountryCode
vatNumber: string
requestDate: string
valid: boolean
requestIdentifier: string
name: string
address: string
traderName: string
traderStreet: string
traderPostalCode: string
traderCity: string
traderCompanyType: string
traderNameMatch: string
traderStreetMatch: string
traderPostalCodeMatch: string
traderCityMatch: string
traderCompanyTypeMatch: string
}
const command = new ViesCheckVatNumberCommandBuilder()
.withCountryCode(CountryCode.BELGIUM)
.withVatNumber(vatNumber)
.withRequesterMemberStateCode(CountryCode.BELGIUM)
.withRequesterNumber(requesterVatNumber)
.build()
Use requester fields only when you need the extra VIES validation context. For basic VAT checks, countryCode and vatNumber are enough.