94 lines
2.3 KiB
Markdown
94 lines
2.3 KiB
Markdown
# Veza API Frontend Integration Guide
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## 1. Introduction
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This guide provides instructions for consuming the Veza Backend API in frontend applications (React, Vue, etc.).
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## 2. API Client Setup
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We recommend creating a typed API client.
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### 2.1. TypeScript Interfaces
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```typescript
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// Base Response Envelope
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export interface APIResponse<T> {
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success: boolean;
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data: T | null;
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error: APIError | null;
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}
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// Error Structure
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export interface APIError {
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code: number;
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message: string;
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details?: ValidationErrorDetail[] | null;
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request_id?: string;
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timestamp?: string;
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}
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export interface ValidationErrorDetail {
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field: string;
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message: string;
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value?: string;
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tag?: string;
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}
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// Pagination
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export interface PaginatedList<T> {
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list: T[];
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pagination: {
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page: number;
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limit: number;
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total: number;
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has_next: boolean;
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};
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}
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```
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## 3. Making Requests
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### 3.1. Fetch Wrapper Example
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```typescript
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async function apiRequest<T>(endpoint: string, options: RequestInit = {}): Promise<T> {
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const token = localStorage.getItem('access_token');
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const headers = {
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'Content-Type': 'application/json',
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...(token ? { 'Authorization': `Bearer ${token}` } : {}),
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...options.headers,
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};
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const response = await fetch(\`/api/v1${endpoint}\`, { ...options, headers });
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const result: APIResponse<T> = await response.json();
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if (!result.success) {
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// Handle API Error
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console.error('API Error:', result.error);
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throw new Error(result.error?.message || 'Unknown API Error');
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}
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// Return the data payload directly
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return result.data as T;
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}
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```
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## 4. Handling Validation Errors
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When a `400 Bad Request` or `422 Unprocessable Entity` occurs:
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```typescript
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try {
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await apiRequest('/auth/login', { method: 'POST', body: JSON.stringify(creds) });
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} catch (error) {
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// If error has details, map them to form fields
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const apiError = error as APIError; // You might need to adjust error throwing logic
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if (apiError.details) {
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apiError.details.forEach(detail => {
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setFieldError(detail.field, detail.message);
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});
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}
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}
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```
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## 5. Resources & Endpoints (Swagger)
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For a full list of endpoints, request/response bodies, please refer to the OpenAPI Specification:
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- Local URL: `http://localhost:8080/swagger/index.html`
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- File: `docs/swagger.json`
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