Trace 配置¶

import { FTSDK, FTTraceConfig, TraceType } from '@guancecloud/ft_sdk/Index';

const traceConfig = new FTTraceConfig()
  .setSamplingRate(0.8)
  .setTraceType(TraceType.DDTRACE)
  .setEnableAutoTrace(true)
  .setEnableLinkRUMData(true);

FTSDK.installTraceConfig(traceConfig);

import { rcp } from '@kit.RemoteCommunicationKit';
import { createFTRCPTrackConfig } from '@guancecloud/ft_sdk/Index';

const session = rcp.createSession(createFTRCPTrackConfig({
  baseAddress: 'https://api.example.com'
}));

const request = new rcp.Request('/data', 'GET');
const response = await session.fetch(request);

import { FTTraceManager } from '@guancecloud/ft_sdk/Index';
import http from '@ohos.net.http';

const url = 'https://api.example.com/data';
const resourceId = 'unique-resource-id';
const traceHeaders: Record<string, string> = FTTraceManager.getInstance().getTraceHeader(resourceId, url);

const httpRequest = http.createHttp();
const response = await httpRequest.request(url, {
  method: http.RequestMethod.GET,
  header: traceHeaders
});

import {
  FTSDK,
  FTTraceConfig,
  FTTraceManager,
  FTTraceHeaderHandler,
  FTTraceRequestContext,
  FTTraceContext,
  TraceType
} from '@guancecloud/ft_sdk/Index';

class CustomTraceHeaderHandler implements FTTraceHeaderHandler {
  getTraceContext(request: FTTraceRequestContext): FTTraceContext {
    const traceContext = FTTraceManager.getInstance().getTraceContextDirect(request.url);
    traceContext.traceId = this.getHeaderValue(request.headers, 'x-existing-trace-id');
    traceContext.spanId = this.getHeaderValue(request.headers, 'x-existing-span-id');
    return traceContext;
  }

  private getHeaderValue(headers: Record<string, string>, key: string): string {
    const directValue = headers[key];
    if (directValue !== undefined) {
      return directValue;
    }
    const normalizedKey = key.toLowerCase();
    const headerKeys = Object.keys(headers);
    for (let i = 0; i < headerKeys.length; i++) {
      const headerKey = headerKeys[i];
      if (headerKey.toLowerCase() === normalizedKey) {
        return headers[headerKey];
      }
    }
    return '';
  }

}

import { FTSDK, FTTraceConfig, TraceType } from '@guancecloud/ft_sdk/Index';

const traceConfig = new FTTraceConfig()
  .setEnableAutoTrace(true)
  .setTraceType(TraceType.TRACEPARENT)
  .setTraceHeaderHandler(new CustomTraceHeaderHandler());

FTSDK.installTraceConfig(traceConfig);