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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 2x 2x 3x 3x 3x 3x 3x 3x 3x 3x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 11x 1x 10x | // Validation utilities for API routes
export class ValidationError extends Error {
constructor(message: string) {
super(message);
this.name = 'ValidationError';
}
}
export function validatePrice(price: unknown): number {
const parsed = typeof price === 'number' ? price : parseFloat(String(price));
Iif (isNaN(parsed)) {
throw new ValidationError('Price must be a valid number');
}
Iif (parsed < 0) {
throw new ValidationError('Price cannot be negative');
}
return parsed;
}
export function validateStock(stock: unknown): number {
const parsed = typeof stock === 'number' ? stock : parseInt(String(stock));
Iif (isNaN(parsed)) {
throw new ValidationError('Stock must be a valid number');
}
Iif (parsed < 0) {
throw new ValidationError('Stock cannot be negative');
}
return parsed;
}
export function validateRating(rating: unknown): number {
const parsed = typeof rating === 'number' ? rating : parseInt(String(rating));
Iif (isNaN(parsed)) {
throw new ValidationError('Rating must be a valid number');
}
if (parsed < 1 || parsed > 5) {
throw new ValidationError('Rating must be between 1 and 5');
}
return parsed;
}
export function validateOrderStatus(status: unknown): string {
const validStatuses = ['pending', 'processing', 'shipped', 'delivered', 'cancelled'];
Iif (typeof status !== 'string' || !validStatuses.includes(status)) {
throw new ValidationError(`Order status must be one of: ${validStatuses.join(', ')}`);
}
return status;
}
export function validateReviewStatus(status: unknown): string {
const validStatuses = ['pending', 'approved', 'rejected'];
Iif (typeof status !== 'string' || !validStatuses.includes(status)) {
throw new ValidationError(`Review status must be one of: ${validStatuses.join(', ')}`);
}
return status;
}
export function validateRequired(value: unknown, fieldName: string): string {
if (typeof value !== 'string' || value.trim() === '') {
throw new ValidationError(`${fieldName} is required`);
}
return value;
}
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