class-validator#matches TypeScript Examples

@ApiProperty({
    description: 'Username for your account, must be unique.',
  })
  @IsUsernameAlreadyExist({
    message: 'Username $value already exists. Choose another username.',
  })
  @IsString()
  @MinLength(8)
  @MaxLength(20)
  @Matches(PATTERN_VALID_USERNAME, {
    message: `Username $value don't have a valid format`,
  })
  @IsNotEmpty()
  username!: string;

@ApiProperty()
  @IsUsernameAlreadyExist({ message: 'Username $value already exists. Choose another username.' })
  @IsString()
  @MinLength(8)
  @MaxLength(20)
  @Matches(PATTERN_VALID_USERNAME, {
    message: `Username $value don't have a valid format`,
  })
  @IsOptional()
  username: string;

/**
   * A unique hCaptcha accessibility URL recieved in your email after signing up here: https://dashboard.hcaptcha.com/signup?type=accessibility
   * @example https://accounts.hcaptcha.com/verify_email/96e9d77b-21eb-463d-9a21-75237fb27b6c
   * @env HCAPTCHA_ACCESSIBILITY_URL
   */
  @IsOptional()
  @IsUrl()
  @Matches(
    /https:\/\/accounts\.hcaptcha\.com\/verify_email\/[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-4[0-9A-Za-z]{3}-[89ABab][0-9A-Za-z]{3}-[0-9A-Za-z]{12}/
  )
  hcaptchaAccessibilityUrl = process.env.HCAPTCHA_ACCESSIBILITY_URL;

/**
   * Discord channel webhook URL.
   * Guide: https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks
   * @example https://discord.com/api/webhooks/123456789123456789/A-abcdefghijklmn-abcdefghijklmnopqrst12345678-abcdefghijklmnop123456
   * @env DISCORD_WEBHOOK
   */
  @IsUrl()
  @Matches(/^.*(discord|discordapp)\.com\/api\/webhooks\/([\d]+)\/([a-zA-Z0-9_-]+)$/)
  webhookUrl: string;

/**
   * If 2FA is enabled, add your TOTP secret
   * @example EMNCF83ULU3K3PXPJBSWY3DPEHPK3PXPJWY3DPEHPK3YI69R39NE
   * @env TOTP
   */
  @IsOptional()
  @Length(52)
  @Matches(/^[A-Z2-7]+=*$/) // IsBase32 also checks for mod 8 length, which these aren't
  totp?: string;

@IsNumberString()
  @Matches(/[0-9]+/)
  public i: string;

@Length(2, 20)
  @Matches(/^[a-zA-Z0-9_]*$/, { message: 'Username can only contain letters, numbers and underscores' })
  username!: string

@Expose()
  @Length(8, 50)
  @Matches(/^(?=.*[0-9])(?=.*[a-zA-Z])(.+)$/, { message: 'Password must have at least one letter and one digit' })
  newPassword!: string

@Expose()
  @Length(2, 20)
  @Matches(/^[a-zA-Z0-9_]*$/, { message: 'Username can only contain letters, numbers and underscores' })
  username!: string

@Expose()
  @Length(8, 50)
  @Matches(/^(?=.*[0-9])(?=.*[a-zA-Z])(.+)$/, { message: 'Password must have at least one letter and one digit' })
  password!: string

@Property({ required: true, unique: true, index: true })
  @Length(2, 20)
  @Matches(/^[a-zA-Z0-9_]*$/, { message: 'Username can only contain letters, numbers and underscores' })
  username!: string

@IsNumberString()
  @Matches(/[0-9]+/)
  @IsNotEmpty()
  @ValidateIf(o => o.count !== 'true')
  @IsInRange(1, 50)
  public pageSize: string;

@IsNumberString()
  @Matches(/[0-9]+/)
  @IsOptional()
  public offset?: string;

@IsNumberString()
  @Matches(/[0-9]+/)
  public i: string;

@Expose()
  @Length(8, 50)
  @Matches(/^(?=.*[0-9])(?=.*[a-zA-Z])(.+)$/, { message: 'Password must have at least one letter and one digit' })
  password!: string

@IsNumberString()
  @Matches(/[0-9]+/)
  @IsNotEmpty()
  @ValidateIf(o => o.count !== 'true')
  @IsInRange(1, 50)
  public pageSize: string;

@IsNumberString()
  @Matches(/[0-9]+/)
  @IsOptional()
  public offset?: string;

@IsNotEmpty()
    @IsNumberString()
    @Matches(/^[+]?((\d+(\.\d*)?)|(\.\d+))$/)
    public gasLimit: string;

@IsNotEmpty()
    @IsNumberString()
    @Matches(/^[+]?((\d+(\.\d*)?)|(\.\d+))$/)
    public gasPrice: string;

@IsNumberString()
    @Matches(/[0-9]+/)
    public i: string;

@IsNumberString()
    @Matches(/[0-9]+/)
    public i: string;

@IsNotEmpty()
    @IsNumberString()
    @Matches(/[0-9]+/)
    public height: string;

// @IsString()
  // @IsIn(TRADING_MODES)
  // @IsOptional()
  // mode?: TradingMode;

  @IsString()
  @Matches(/.*(PERP|USD).*/)
  symbol: string;

@ApiProperty({ description: '登录密码' })
  @IsString()
  @MinLength(6, { message: '密码长度不能小于6！' })
  @MaxLength(20, { message: '密码长度不能大于20！' })
  @Matches(/((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$/, {
    message: '密码强度太低！',
  })
  readonly pwd: string;

@ApiProperty({ description: '登录密码' })
  @IsString()
  @MinLength(6, { message: '密码长度不能小于6！' })
  @MaxLength(20, { message: '密码长度不能大于20！' })
  @Matches(/((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$/, {
    message: '密码强度太低！',
  })
  readonly pwd: string;

static validatePrimitive(schema: string, value: any) {
    let message: string
    let isValid: boolean = true

    switch (schema) {
      case did:
        isValid = matches(value, DID)
        message = `Parameter "${value}" is not a valid. Valid format: (${DID}).`
        break

      case didMethod:
        isValid = matches(value, DID_METHOD)
        message = `Parameter "${value}" is not a valid. Valid format: (${DID_METHOD}).`
        break

      case jwt:
        isValid = matches(value, JWT)
        message = `Parameter "${value}" is not a valid JWT. Valid format: (${JWT}).`
        break

      case array:
        isValid = isArray(value)
        message = `Parameter "${value}" should be an array.`
        break

      case number:
        isValid = isNumber(value)
        message = `Parameter "${value}" should be a number.`
        break

      case object:
        isValid = isObject(value)
        message = `Parameter "${value}" should be an object.`
        break

      case string:
        isValid = isString(value)
        message = `Parameter "${value}" should be a string.`
        break

      case boolean:
        isValid = isBoolean(value)
        message = `Parameter "${value}" should be a boolean.`
        break

      case isoString:
        isValid = isISO8601(value)
        message = `Parameter "${value}" is not a valid ISO 8601 date string.`
        break

      case confirmationCode:
        isValid = matches(value, COGNITO_CONFIRMATION_CODE)
        message = `Parameter "${value}" is not a valid confirmation code. Valid format: (${COGNITO_CONFIRMATION_CODE}).`
        break

      case password:
        isValid = matches(value, PASSWORD)
        message = `Parameter "${value}" is not a password. Valid format: (${PASSWORD}).`
        break
    }

    return { isValid, message }
  }

/**
   * Telegram bot token obtained here: https://core.telegram.org/bots#3-how-do-i-create-a-bot
   * @example 644739147:AAGMPo-Jz3mKRnHRTnrPEDi7jUF1vqNOD5k
   * @env TELEGRAM_TOKEN
   */
  @IsString()
  @Matches(/[0-9]+:[a-zA-Z0-9_-]{35}/)
  token: string;

@ApiProperty({ example: 'France', description: 'Country of residence' })
  @MaxLength(50)
  @MinLength(4)
  @IsString()
  @Matches(/^[a-zA-Z ]*$/)
  @Field() // <- only if you are using graphql
  readonly country: string;

@ApiProperty({ example: 'Grande Rue', description: 'Street' })
  @MaxLength(50)
  @MinLength(5)
  @Matches(/^[a-zA-Z ]*$/)
  @Field() // <- only if you are using graphql
  readonly street: string;