update

ts/bunq.classes.httpclient.ts

@@ -0,0 +1,206 @@
+import * as plugins from './bunq.plugins';
+import { BunqCrypto } from './bunq.classes.crypto';
+import { 
+  IBunqApiContext, 
+  IBunqError, 
+  IBunqRequestOptions 
+} from './bunq.interfaces';
+
+export class BunqHttpClient {
+  private crypto: BunqCrypto;
+  private context: IBunqApiContext;
+  private requestCounter: number = 0;
+
+  constructor(crypto: BunqCrypto, context: IBunqApiContext) {
+    this.crypto = crypto;
+    this.context = context;
+  }
+
+  /**
+   * Update the API context (used after getting session token)
+   */
+  public updateContext(context: Partial<IBunqApiContext>): void {
+    this.context = { ...this.context, ...context };
+  }
+
+  /**
+   * Make an API request to bunq
+   */
+  public async request<T = any>(options: IBunqRequestOptions): Promise<T> {
+    const url = `${this.context.baseUrl}${options.endpoint}`;
+    
+    // Prepare headers
+    const headers = this.prepareHeaders(options);
+    
+    // Prepare body
+    const body = options.body ? JSON.stringify(options.body) : undefined;
+    
+    // Add signature if required
+    if (options.useSigning !== false && this.crypto.getPrivateKey()) {
+      headers['X-Bunq-Client-Signature'] = this.crypto.createSignatureHeader(
+        options.method,
+        options.endpoint,
+        headers,
+        body || ''
+      );
+    }
+
+    // Make the request
+    const requestOptions: any = {
+      method: options.method === 'LIST' ? 'GET' : options.method,
+      headers: headers,
+      requestBody: body
+    };
+
+    if (options.params) {
+      const params = new URLSearchParams();
+      Object.entries(options.params).forEach(([key, value]) => {
+        if (value !== undefined && value !== null) {
+          params.append(key, String(value));
+        }
+      });
+      requestOptions.queryParams = params.toString();
+    }
+
+    try {
+      const response = await plugins.smartrequest.request(url, requestOptions);
+      
+      // Verify response signature if we have server public key
+      if (this.context.serverPublicKey) {
+        // Convert headers to string-only format
+        const stringHeaders: { [key: string]: string } = {};
+        for (const [key, value] of Object.entries(response.headers)) {
+          if (typeof value === 'string') {
+            stringHeaders[key] = value;
+          } else if (Array.isArray(value)) {
+            stringHeaders[key] = value.join(', ');
+          }
+        }
+        
+        const isValid = this.crypto.verifyResponseSignature(
+          response.statusCode,
+          stringHeaders,
+          response.body,
+          this.context.serverPublicKey
+        );
+        
+        if (!isValid && options.endpoint !== '/v1/installation') {
+          throw new Error('Invalid response signature');
+        }
+      }
+
+      // Parse response
+      const responseData = JSON.parse(response.body);
+      
+      // Check for errors
+      if (responseData.Error) {
+        throw new BunqApiError(responseData.Error);
+      }
+
+      return responseData;
+    } catch (error) {
+      if (error instanceof BunqApiError) {
+        throw error;
+      }
+      
+      // Handle network errors
+      throw new Error(`Request failed: ${error.message}`);
+    }
+  }
+
+  /**
+   * Prepare headers for the request
+   */
+  private prepareHeaders(options: IBunqRequestOptions): { [key: string]: string } {
+    const headers: { [key: string]: string } = {
+      'Cache-Control': 'no-cache',
+      'User-Agent': 'bunq-api-client/1.0.0',
+      'X-Bunq-Language': 'en_US',
+      'X-Bunq-Region': 'nl_NL',
+      'X-Bunq-Client-Request-Id': this.crypto.generateRequestId(),
+      'X-Bunq-Geolocation': '0 0 0 0 NL',
+      'Content-Type': 'application/json'
+    };
+
+    // Add authentication token
+    if (options.useSessionToken !== false) {
+      if (this.context.sessionToken) {
+        headers['X-Bunq-Client-Authentication'] = this.context.sessionToken;
+      } else if (this.context.installationToken && options.endpoint !== '/v1/installation') {
+        headers['X-Bunq-Client-Authentication'] = this.context.installationToken;
+      }
+    }
+
+    return headers;
+  }
+
+  /**
+   * LIST request helper
+   */
+  public async list<T = any>(endpoint: string, params?: any): Promise<T> {
+    return this.request<T>({
+      method: 'LIST',
+      endpoint,
+      params
+    });
+  }
+
+  /**
+   * GET request helper
+   */
+  public async get<T = any>(endpoint: string): Promise<T> {
+    return this.request<T>({
+      method: 'GET',
+      endpoint
+    });
+  }
+
+  /**
+   * POST request helper
+   */
+  public async post<T = any>(endpoint: string, body?: any): Promise<T> {
+    return this.request<T>({
+      method: 'POST',
+      endpoint,
+      body
+    });
+  }
+
+  /**
+   * PUT request helper
+   */
+  public async put<T = any>(endpoint: string, body?: any): Promise<T> {
+    return this.request<T>({
+      method: 'PUT',
+      endpoint,
+      body
+    });
+  }
+
+  /**
+   * DELETE request helper
+   */
+  public async delete<T = any>(endpoint: string): Promise<T> {
+    return this.request<T>({
+      method: 'DELETE',
+      endpoint
+    });
+  }
+}
+
+/**
+ * Custom error class for bunq API errors
+ */
+export class BunqApiError extends Error {
+  public errors: Array<{
+    error_description: string;
+    error_description_translated: string;
+  }>;
+
+  constructor(errors: Array<any>) {
+    const message = errors.map(e => e.error_description).join('; ');
+    super(message);
+    this.name = 'BunqApiError';
+    this.errors = errors;
+  }
+}