feat(gs): add App Insights log query endpoint

src/config/config.ts

@@ -1005,6 +1005,9 @@ export class Configuration {
         ?.replace('BlobEndpoint=', ''),
       connectionString: process.env.AZURE_STORAGE_CONNECTION_STRING,
     },
+    appInsights: {
+      appId: process.env.APPINSIGHTS_APP_ID,
+    },
   };
 
   alby = {

src/integration/infrastructure/app-insights-query.service.ts

@@ -0,0 +1,81 @@
+import { Injectable } from '@nestjs/common';
+import { Config } from 'src/config/config';
+import { DfxLogger } from 'src/shared/services/dfx-logger';
+import { HttpService } from 'src/shared/services/http.service';
+
+interface AppInsightsQueryResponse {
+  tables: {
+    name: string;
+    columns: { name: string; type: string }[];
+    rows: unknown[][];
+  }[];
+}
+
+@Injectable()
+export class AppInsightsQueryService {
+  private readonly logger = new DfxLogger(AppInsightsQueryService);
+
+  private readonly baseUrl = 'https://api.applicationinsights.io/v1';
+  private readonly TOKEN_REFRESH_BUFFER_MS = 60000;
+
+  private accessToken: string | null = null;
+  private tokenExpiresAt = 0;
+
+  constructor(private readonly http: HttpService) {}
+
+  async query(kql: string, timespan?: string): Promise<AppInsightsQueryResponse> {
+    const appId = Config.azure.appInsights?.appId;
+    if (!appId) {
+      throw new Error('App Insights App ID not configured');
+    }
+
+    const body: { query: string; timespan?: string } = { query: kql };
+    if (timespan) body.timespan = timespan;
+
+    return this.request<AppInsightsQueryResponse>(`apps/${appId}/query`, body);
+  }
+
+  private async request<T>(url: string, body: object, nthTry = 3): Promise<T> {
+    try {
+      if (!this.accessToken || Date.now() >= this.tokenExpiresAt - this.TOKEN_REFRESH_BUFFER_MS) {
+        await this.refreshAccessToken();
+      }
+
+      return await this.http.request<T>({
+        url: `${this.baseUrl}/${url}`,
+        method: 'POST',
+        data: body,
+        headers: {
+          Authorization: `Bearer ${this.accessToken}`,
+          'Content-Type': 'application/json',
+        },
+      });
+    } catch (e) {
+      if (nthTry > 1 && e.response?.status === 401) {
+        await this.refreshAccessToken();
+        return this.request(url, body, nthTry - 1);
+      }
+      throw e;
+    }
+  }
+
+  private async refreshAccessToken(): Promise<void> {
+    try {
+      const { access_token, expires_in } = await this.http.post<{ access_token: string; expires_in: number }>(
+        `https://login.microsoftonline.com/${Config.azure.tenantId}/oauth2/token`,
+        new URLSearchParams({
+          grant_type: 'client_credentials',
+          client_id: Config.azure.clientId,
+          client_secret: Config.azure.clientSecret,
+          resource: 'https://api.applicationinsights.io',
+        }),
+      );
+
+      this.accessToken = access_token;
+      this.tokenExpiresAt = Date.now() + expires_in * 1000;
+    } catch (e) {
+      this.logger.error('Failed to refresh App Insights access token', e);
+      throw new Error('Failed to authenticate with App Insights');
+    }
+  }
+}

src/integration/integration.module.ts

@@ -5,6 +5,7 @@ import { BlockchainModule } from './blockchain/blockchain.module';
 import { CheckoutModule } from './checkout/checkout.module';
 import { ExchangeModule } from './exchange/exchange.module';
 import { IknaModule } from './ikna/ikna.module';
+import { AppInsightsQueryService } from './infrastructure/app-insights-query.service';
 import { AzureService } from './infrastructure/azure-service';
 import { LetterModule } from './letter/letter.module';
 import { SiftModule } from './sift/sift.module';
@@ -21,7 +22,7 @@ import { SiftModule } from './sift/sift.module';
     SiftModule,
   ],
   controllers: [],
-  providers: [AzureService],
+  providers: [AzureService, AppInsightsQueryService],
   exports: [
     BankIntegrationModule,
     BlockchainModule,
@@ -30,6 +31,7 @@ import { SiftModule } from './sift/sift.module';
     IknaModule,
     CheckoutModule,
     AzureService,
+    AppInsightsQueryService,
     SiftModule,
   ],
 })

src/shared/services/http.service.ts

@@ -38,6 +38,8 @@ const MOCK_RESPONSES: { pattern: RegExp; response: any }[] = [
       bic_candidates: [{ bic: 'MOCKBIC1XXX' }],
     },
   },
+  { pattern: /login\.microsoftonline\.com/, response: { access_token: 'mock-token', expires_in: 3600 } },
+  { pattern: /api\.applicationinsights\.io/, response: { tables: [{ name: 'PrimaryResult', columns: [], rows: [] }] } },
 ];
 
 @Injectable()

src/subdomains/generic/gs/dto/log-query.dto.ts

@@ -0,0 +1,47 @@
+import { IsEnum, IsInt, IsOptional, IsString, Matches, Max, Min } from 'class-validator';
+
+export enum LogQueryTemplate {
+  TRACES_BY_OPERATION = 'traces-by-operation',
+  TRACES_BY_MESSAGE = 'traces-by-message',
+  EXCEPTIONS_RECENT = 'exceptions-recent',
+  REQUEST_FAILURES = 'request-failures',
+  DEPENDENCIES_SLOW = 'dependencies-slow',
+  CUSTOM_EVENTS = 'custom-events',
+}
+
+export class LogQueryDto {
+  @IsEnum(LogQueryTemplate)
+  template: LogQueryTemplate;
+
+  @IsOptional()
+  @IsString()
+  @Matches(/^[a-f0-9-]{36}$/i, { message: 'operationId must be a valid GUID' })
+  operationId?: string;
+
+  @IsOptional()
+  @IsString()
+  @Matches(/^[a-zA-Z0-9_\-.: ()]{1,100}$/, { message: 'messageFilter must be alphanumeric with basic punctuation (max 100 chars)' })
+  messageFilter?: string;
+
+  @IsOptional()
+  @IsInt()
+  @Min(1)
+  @Max(168) // max 7 days
+  hours?: number;
+
+  @IsOptional()
+  @IsInt()
+  @Min(100)
+  @Max(5000)
+  durationMs?: number;
+
+  @IsOptional()
+  @IsString()
+  @Matches(/^[a-zA-Z0-9_]{1,50}$/, { message: 'eventName must be alphanumeric' })
+  eventName?: string;
+}
+
+export class LogQueryResult {
+  columns: { name: string; type: string }[];
+  rows: unknown[][];
+}

src/subdomains/generic/gs/gs.controller.ts

@@ -9,6 +9,7 @@ import { UserRole } from 'src/shared/auth/user-role.enum';
 import { DfxLogger } from 'src/shared/services/dfx-logger';
 import { DbQueryBaseDto, DbQueryDto, DbReturnData } from './dto/db-query.dto';
 import { DebugQueryDto } from './dto/debug-query.dto';
+import { LogQueryDto, LogQueryResult } from './dto/log-query.dto';
 import { SupportDataQuery, SupportReturnData } from './dto/support-data.dto';
 import { GsService } from './gs.service';
 
@@ -59,4 +60,17 @@ export class GsController {
       throw new BadRequestException(e.message);
     }
   }
+
+  @Post('debug/logs')
+  @ApiBearerAuth()
+  @ApiExcludeEndpoint()
+  @UseGuards(AuthGuard(), RoleGuard(UserRole.DEBUG), UserActiveGuard())
+  async executeLogQuery(@GetJwt() jwt: JwtPayload, @Body() dto: LogQueryDto): Promise<LogQueryResult> {
+    try {
+      return await this.gsService.executeLogQuery(dto, jwt.address ?? `account:${jwt.account}`);
+    } catch (e) {
+      this.logger.verbose(`Log query failed:`, e);
+      throw new BadRequestException(e.message);
+    }
+  }
 }

src/subdomains/generic/gs/gs.module.ts

@@ -1,5 +1,6 @@
 import { Module } from '@nestjs/common';
 import { BlockchainModule } from 'src/integration/blockchain/blockchain.module';
+import { IntegrationModule } from 'src/integration/integration.module';
 import { LetterModule } from 'src/integration/letter/letter.module';
 import { SharedModule } from 'src/shared/shared.module';
 import { BuyCryptoModule } from 'src/subdomains/core/buy-crypto/buy-crypto.module';
@@ -24,6 +25,7 @@ import { GsService } from './gs.service';
   imports: [
     SharedModule,
     BlockchainModule,
+    IntegrationModule,
     AddressPoolModule,
     ReferralModule,
     BuyCryptoModule,