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apitally

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Simple API monitoring & analytics for REST APIs built with Express, Fastify, NestJS, AdonisJS, Hono, H3, Elysia, Hapi, and Koa.

1 lines 17.6 kB
{"version":3,"sources":["../../src/common/client.ts"],"sourcesContent":["import fetchRetry from \"fetch-retry\";\nimport { randomUUID } from \"node:crypto\";\n\nimport ConsumerRegistry from \"./consumerRegistry.js\";\nimport { getOrCreateInstanceUuid } from \"./instance.js\";\nimport { Logger, getLogger } from \"./logging.js\";\nimport { isValidClientId, isValidEnv } from \"./paramValidation.js\";\nimport RequestCounter from \"./requestCounter.js\";\nimport RequestLogger from \"./requestLogger.js\";\nimport { getCpuMemoryUsage } from \"./resources.js\";\nimport ServerErrorCounter from \"./serverErrorCounter.js\";\nimport SpanCollector from \"./spanCollector.js\";\nimport {\n ApitallyConfig,\n StartupData,\n StartupPayload,\n SyncPayload,\n} from \"./types.js\";\nimport ValidationErrorCounter from \"./validationErrorCounter.js\";\n\nconst SYNC_INTERVAL = 60000; // 60 seconds\nconst INITIAL_SYNC_INTERVAL = 10000; // 10 seconds\nconst INITIAL_SYNC_INTERVAL_DURATION = 3600000; // 1 hour\nconst MAX_QUEUE_TIME = 3.6e6; // 1 hour\n\nclass HTTPError extends Error {\n public response: Response;\n\n constructor(response: Response) {\n const reason = response.status\n ? `status code ${response.status}`\n : \"an unknown error\";\n super(`Request failed with ${reason}`);\n this.response = response;\n }\n}\n\nexport class ApitallyClient {\n private clientId: string;\n private env: string;\n\n private static instance?: ApitallyClient;\n private instanceUuid: string;\n private syncDataQueue: SyncPayload[];\n private syncIntervalId?: NodeJS.Timeout;\n public startupData?: StartupData;\n private startupDataSent: boolean = false;\n private enabled: boolean = true;\n\n public requestCounter: RequestCounter;\n public requestLogger: RequestLogger;\n public spanCollector: SpanCollector;\n public validationErrorCounter: ValidationErrorCounter;\n public serverErrorCounter: ServerErrorCounter;\n public consumerRegistry: ConsumerRegistry;\n public logger: Logger;\n\n constructor({\n clientId,\n env = \"dev\",\n requestLogging,\n requestLoggingConfig,\n logger,\n }: ApitallyConfig) {\n if (ApitallyClient.instance) {\n throw new Error(\"Apitally client is already initialized\");\n }\n\n this.logger = logger ?? getLogger();\n\n if (!isValidClientId(clientId)) {\n this.logger.error(\n `Invalid Apitally client ID '${clientId}' (expecting hexadecimal UUID format)`,\n );\n this.enabled = false;\n }\n if (!isValidEnv(env)) {\n this.logger.error(\n `Invalid Apitally env '${env}' (expecting 1-32 alphanumeric characters and hyphens only)`,\n );\n this.enabled = false;\n }\n if (requestLoggingConfig && !requestLogging) {\n console.warn(\n \"requestLoggingConfig is deprecated, use requestLogging instead.\",\n );\n }\n\n ApitallyClient.instance = this;\n this.clientId = clientId;\n this.env = env;\n this.instanceUuid = getOrCreateInstanceUuid(clientId, env);\n this.syncDataQueue = [];\n this.requestCounter = new RequestCounter();\n this.requestLogger = new RequestLogger(\n requestLogging ?? requestLoggingConfig,\n );\n this.spanCollector = new SpanCollector(\n this.enabled &&\n this.requestLogger.enabled &&\n this.requestLogger.config.captureTraces,\n );\n this.validationErrorCounter = new ValidationErrorCounter();\n this.serverErrorCounter = new ServerErrorCounter();\n this.consumerRegistry = new ConsumerRegistry();\n this.handleShutdown = this.handleShutdown.bind(this);\n }\n\n public static getInstance() {\n if (!ApitallyClient.instance) {\n throw new Error(\"Apitally client is not initialized\");\n }\n return ApitallyClient.instance;\n }\n\n public isEnabled() {\n return this.enabled;\n }\n\n public static async shutdown() {\n if (ApitallyClient.instance) {\n await ApitallyClient.instance.handleShutdown();\n }\n }\n\n public async handleShutdown() {\n this.enabled = false;\n this.stopSync();\n await this.sendSyncData();\n await this.sendLogData();\n await this.spanCollector.shutdown();\n await this.requestLogger.close();\n ApitallyClient.instance = undefined;\n }\n\n private getHubUrlPrefix() {\n const baseURL =\n process.env.APITALLY_HUB_BASE_URL || \"https://hub.apitally.io\";\n const version = \"v2\";\n return `${baseURL}/${version}/${this.clientId}/${this.env}/`;\n }\n\n private async sendData(url: string, payload: any) {\n const fetchWithRetry = fetchRetry(fetch, {\n retries: 3,\n retryDelay: 1000,\n retryOn: [408, 429, 500, 502, 503, 504],\n });\n const response = await fetchWithRetry(this.getHubUrlPrefix() + url, {\n method: \"POST\",\n body: JSON.stringify(payload),\n headers: { \"Content-Type\": \"application/json\" },\n });\n if (!response.ok) {\n throw new HTTPError(response);\n }\n }\n\n public startSync() {\n if (!this.enabled) {\n return;\n }\n this.sync();\n this.syncIntervalId = setInterval(() => {\n this.sync();\n }, INITIAL_SYNC_INTERVAL);\n setTimeout(() => {\n if (this.syncIntervalId) {\n clearInterval(this.syncIntervalId);\n this.syncIntervalId = setInterval(() => {\n this.sync();\n }, SYNC_INTERVAL);\n }\n }, INITIAL_SYNC_INTERVAL_DURATION);\n }\n\n private async sync() {\n try {\n const promises = [this.sendSyncData(), this.sendLogData()];\n if (!this.startupDataSent) {\n promises.push(this.sendStartupData());\n }\n await Promise.all(promises);\n } catch (error) {\n this.logger.error(\"Error while syncing with Apitally Hub\", {\n error,\n });\n }\n }\n\n private stopSync() {\n if (this.syncIntervalId) {\n clearInterval(this.syncIntervalId);\n this.syncIntervalId = undefined;\n }\n }\n\n public setStartupData(data: StartupData) {\n this.startupData = data;\n this.startupDataSent = false;\n }\n\n private async sendStartupData() {\n if (this.startupData) {\n this.logger.debug(\"Sending startup data to Apitally Hub\");\n const payload: StartupPayload = {\n instance_uuid: this.instanceUuid,\n message_uuid: randomUUID(),\n ...this.startupData,\n };\n try {\n await this.sendData(\"startup\", payload);\n this.startupDataSent = true;\n } catch (error) {\n const handled = this.handleHubError(error);\n if (!handled) {\n this.logger.error((error as Error).message);\n this.logger.debug(\n \"Error while sending startup data to Apitally Hub (will retry)\",\n { error },\n );\n }\n }\n }\n }\n\n private async sendSyncData() {\n this.logger.debug(\"Synchronizing data with Apitally Hub\");\n const newPayload: SyncPayload = {\n timestamp: Date.now() / 1000,\n instance_uuid: this.instanceUuid,\n message_uuid: randomUUID(),\n requests: this.requestCounter.getAndResetRequests(),\n validation_errors:\n this.validationErrorCounter.getAndResetValidationErrors(),\n server_errors: this.serverErrorCounter.getAndResetServerErrors(),\n consumers: this.consumerRegistry.getAndResetUpdatedConsumers(),\n resources: getCpuMemoryUsage(),\n };\n this.syncDataQueue.push(newPayload);\n\n let i = 0;\n while (this.syncDataQueue.length > 0) {\n const payload = this.syncDataQueue.shift();\n if (payload) {\n try {\n if (Date.now() - payload.timestamp * 1000 <= MAX_QUEUE_TIME) {\n if (i > 0) {\n await this.randomDelay();\n }\n await this.sendData(\"sync\", payload);\n i += 1;\n }\n } catch (error) {\n const handled = this.handleHubError(error);\n if (!handled) {\n this.logger.debug(\n \"Error while synchronizing data with Apitally Hub (will retry)\",\n { error },\n );\n this.syncDataQueue.push(payload);\n break;\n }\n }\n }\n }\n }\n\n private async sendLogData() {\n this.logger.debug(\"Sending request log data to Apitally Hub\");\n await this.requestLogger.rotateFile();\n\n const fetchWithRetry = fetchRetry(fetch, {\n retries: 3,\n retryDelay: 1000,\n retryOn: [408, 429, 500, 502, 503, 504],\n });\n\n let i = 0;\n let logFile;\n while ((logFile = this.requestLogger.getFile())) {\n if (i > 0) {\n await this.randomDelay();\n }\n\n try {\n const response = await fetchWithRetry(\n `${this.getHubUrlPrefix()}log?uuid=${logFile.uuid}`,\n {\n method: \"POST\",\n body: (await logFile.getContent()) as any,\n },\n );\n\n if (response.status === 402 && response.headers.has(\"Retry-After\")) {\n const retryAfter = parseInt(\n response.headers.get(\"Retry-After\") ?? \"0\",\n );\n if (retryAfter > 0) {\n this.requestLogger.suspendUntil = Date.now() + retryAfter * 1000;\n this.requestLogger.clear();\n return;\n }\n }\n\n if (!response.ok) {\n throw new HTTPError(response);\n }\n\n logFile.delete();\n } catch (error) {\n this.requestLogger.retryFileLater(logFile);\n break;\n }\n\n i++;\n if (i >= 10) break;\n }\n }\n\n private handleHubError(error: unknown) {\n if (error instanceof HTTPError) {\n if (error.response.status === 404) {\n this.logger.error(`Invalid Apitally client ID: '${this.clientId}'`);\n this.enabled = false;\n this.stopSync();\n return true;\n }\n if (error.response.status === 422) {\n this.logger.error(\"Received validation error from Apitally Hub\");\n return true;\n }\n }\n return false;\n }\n\n private async randomDelay() {\n const delay = 100 + Math.random() * 400;\n await new Promise((resolve) => 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