func()

in auth/auth.go [195:232]

• 35 lines of code
• 8 McCabe index (conditional complexity)

func (c *baseClient) CustomTokenWithClaims(ctx context.Context, uid string, devClaims map[string]interface{}) (string, error) {
	iss, err := c.signer.Email(ctx)
	if err != nil {
		return "", err
	}

	if len(uid) == 0 || len(uid) > 128 {
		return "", errors.New("uid must be non-empty, and not longer than 128 characters")
	}

	var disallowed []string
	for _, k := range reservedClaims {
		if _, contains := devClaims[k]; contains {
			disallowed = append(disallowed, k)
		}
	}
	if len(disallowed) == 1 {
		return "", fmt.Errorf("developer claim %q is reserved and cannot be specified", disallowed[0])
	} else if len(disallowed) > 1 {
		return "", fmt.Errorf("developer claims %q are reserved and cannot be specified", strings.Join(disallowed, ", "))
	}

	now := c.clock.Now().Unix()
	info := &jwtInfo{
		header: jwtHeader{Algorithm: c.signer.Algorithm(), Type: "JWT"},
		payload: &customToken{
			Iss:      iss,
			Sub:      iss,
			Aud:      firebaseAudience,
			UID:      uid,
			Iat:      now,
			Exp:      now + oneHourInSeconds,
			TenantID: c.tenantID,
			Claims:   devClaims,
		},
	}
	return info.Token(ctx, c.signer)
}