Method onToolStart

packages/components/src/handler.ts:1690–1817

(name: string, input: string | object, parentIds: ICommonObject)

    }

    async onToolStart(name: string, input: string | object, parentIds: ICommonObject) {
        const returnIds: ICommonObject = {
            langSmith: {},
            langFuse: {},
            lunary: {},
            langWatch: {},
            arize: {},
            phoenix: {},
            opik: {}
        }

        if (Object.prototype.hasOwnProperty.call(this.handlers, 'langSmith')) {
            const parentRun: RunTree | undefined = this.handlers['langSmith'].chainRun[parentIds['langSmith'].chainRun]
            if (parentRun) {
                const childToolRun = await parentRun.createChild({
                    name,
                    run_type: 'tool',
                    inputs: {
                        input
                    }
                })
                await childToolRun.postRun()
                this.handlers['langSmith'].toolRun = { [childToolRun.id]: childToolRun }
                returnIds['langSmith'].toolRun = childToolRun.id
            }
        }

        if (Object.prototype.hasOwnProperty.call(this.handlers, 'langFuse')) {
            const trace: LangfuseTraceClient | undefined = this.handlers['langFuse'].trace[parentIds['langFuse'].trace]
            if (trace) {
                const toolSpan = trace.span({
                    name,
                    input
                })
                this.handlers['langFuse'].toolSpan = { [toolSpan.id]: toolSpan }
                returnIds['langFuse'].toolSpan = toolSpan.id
            }
        }

        if (Object.prototype.hasOwnProperty.call(this.handlers, 'lunary')) {
            const monitor = this.handlers['lunary'].client
            const chainEventId: string = this.handlers['lunary'].chainEvent[parentIds['lunary'].chainEvent]

            if (monitor && chainEventId) {
                const runId = uuidv4()
                await monitor.trackEvent('tool', 'start', {
                    runId,
                    parentRunId: chainEventId,
                    name,
                    input
                })
                this.handlers['lunary'].toolEvent = { [runId]: runId }
                returnIds['lunary'].toolEvent = runId
            }
        }

        if (Object.prototype.hasOwnProperty.call(this.handlers, 'langWatch')) {
            const trace: LangWatchTrace | undefined = this.handlers['langWatch'].trace[parentIds['langWatch'].trace]