{"record":{"id":"4352ea2045380726","repo":"FlowiseAI/Flowise","slug":"both-team-id-and-channel-id-are-required","errorCode":null,"errorMessage":"Both Team ID and Channel ID are required","messagePattern":"Both Team ID and Channel ID are required","errorType":"validation","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/components/nodes/tools/MicrosoftTeams/core.ts","lineNumber":149,"sourceCode":"            description: 'Get details of a specific channel',\n            schema: z.object({\n                teamId: z.string().describe('ID of the team that contains the channel'),\n                channelId: z.string().describe('ID of the channel to retrieve')\n            }),\n            baseUrl: BASE_URL,\n            method: 'GET',\n            headers: {}\n        }\n\n        super({ ...toolInput, accessToken: args.accessToken, defaultParams: args.defaultParams })\n    }\n\n    protected async _call(arg: any): Promise<string> {\n        const params = { ...arg, ...this.defaultParams }\n        const { teamId, channelId } = params\n\n        if (!teamId || !channelId) {\n            throw new Error('Both Team ID and Channel ID are required')\n        }\n\n        try {\n            const endpoint = `/teams/${teamId}/channels/${channelId}`\n            const result = await this.makeTeamsRequest(endpoint)\n\n            return this.formatResponse(\n                {\n                    success: true,\n                    channel: result\n                },\n                params\n            )\n        } catch (error) {\n            return this.formatResponse(`Error getting channel: ${error}`, params)\n        }\n    }\n}","sourceCodeStart":131,"sourceCodeEnd":167,"githubUrl":"https://github.com/FlowiseAI/Flowise/blob/abe4a8601a058047b350c260676826e21dd14101/packages/components/nodes/tools/MicrosoftTeams/core.ts#L131-L167","documentation":"Thrown synchronously by GetChannelTool._call when teamId or channelId is falsy after the params merge. Sits above the try block at core.ts:148 so it propagates as a real Error, not a formatResponse string. The zod schema at core.ts:132 marks both fields as required z.string(), so under normal LangChain invocation this is unreachable; it triggers when defaultParams clobbers a value to undefined or when the tool is called bypassing schema validation.","triggerScenarios":"get_channel invoked with only teamId or only channelId; defaultParams override one of the two to undefined; agent omits a field; direct _call({ teamId: 'x' }) in a test.","commonSituations":"defaultParams configured with channelId for one channel but reused against a different team; LLM agent hallucinating that channelId alone is enough; UI form submitting only one of two required fields.","solutions":["Ensure both teamId and channelId are passed as non-empty strings.","Invert the params spread to { ...this.defaultParams, ...arg } so explicit caller values are not overwritten by defaults.","Add a preflight check at the call site: if (!teamId || !channelId) return badRequest.","Catch the thrown Error at the orchestration layer since it escapes _call's internal try/catch."],"exampleFix":"// before\nconst params = { ...arg, ...this.defaultParams }\n\n// after — caller-supplied IDs always win\nconst params = { ...this.defaultParams, ...arg }","handlingStrategy":"validation","validationCode":"function validateGetChannelInput(input: unknown) {\n  if (!input || typeof input !== 'object') throw new Error('input required')\n  const { teamId, channelId } = input as any\n  for (const [k, v] of Object.entries({ teamId, channelId })) {\n    if (typeof v !== 'string' || !v.trim()) {\n      throw new Error(`${k} is required`)\n    }\n  }\n}","typeGuard":"function isGetChannelArgs(x: unknown): x is { teamId: string; channelId: string } {\n  return typeof x === 'object' && x !== null &&\n    typeof (x as any).teamId === 'string' && (x as any).teamId.trim() !== '' &&\n    typeof (x as any).channelId === 'string' && (x as any).channelId.trim() !== ''\n}","tryCatchPattern":"try {\n  if (!isGetChannelArgs(input)) return { error: 'teamId and channelId required' }\n  return await getChannelTool.invoke(input)\n} catch (e) {\n  log.warn('get_channel validation failed', { error: e })\n  return { error: (e as Error).message }\n}","preventionTips":["Always resolve both IDs from a prior list_channels call rather than from user free-text.","Audit defaultParams for stray teamId/channelId entries.","Add a GUID-format sanity check: /^[0-9a-f-]{36}$/i.","Wrap every tool invocation in a top-level catch because validation throws escape _call."],"tags":["validation","microsoft-teams","required-field","default-params","channel"],"backgroundTag":null,"analyzedSha":"abe4a8601a058047b350c260676826e21dd14101","analyzedAt":"2026-08-12T16:04:40.823Z","schemaVersion":2},"datasetVersion":"2026-08-12T18:17:37.767Z"}