FlowiseAI/Flowise · error · Error

HTTP Error ${res.status}: ${res.statusText}

Error message

HTTP Error ${res.status}: ${res.statusText}

What it means

Thrown inside the try block of _call when the response from secureFetch is not ok (status outside 200-299). It surfaces the raw HTTP status code and status text. Note: in the shipped code this throw is always caught by the surrounding catch (error 482) and re-wrapped, so the message appears as 'Failed to make GET request: HTTP Error <status>: <text>'.

Source

Thrown at packages/components/nodes/tools/RequestsGet/core.ts:175

            } catch (error) {
                console.warn('Failed to process queryParamsSchema:', error)
            }
        } else if (params.queryParams && Object.keys(params.queryParams).length > 0) {
            // Fallback: treat all parameters as query parameters if no schema is defined
            const url = new URL(finalUrl)
            Object.entries(params.queryParams).forEach(([key, value]) => {
                url.searchParams.append(key, String(value))
            })
            finalUrl = url.toString()
        }

        try {
            const res = await secureFetch(finalUrl, {
                headers: requestHeaders
            })

            if (!res.ok) {
                throw new Error(`HTTP Error ${res.status}: ${res.statusText}`)
            }

            const text = await res.text()
            return text.slice(0, this.maxOutputLength)
        } catch (error) {
            throw new Error(`Failed to make GET request: ${error instanceof Error ? error.message : 'Unknown error'}`)
        }
    }
}

View on GitHub (pinned to abe4a8601a)

Solutions

  1. Log the full wrapped message to recover the real status code, then fix the underlying cause (URL, auth, payload).
  2. For 401/403, supply correct credentials/headers via the tool's `headers` field.
  3. For 429 or 5xx, retry with exponential backoff from the caller.
  4. For 404, verify the endpoint path and that the resource exists.

Example fix

// before
const res = await secureFetch(finalUrl, { headers: requestHeaders })
if (!res.ok) throw new Error(`HTTP Error ${res.status}: ${res.statusText}`)

// after (surface body for diagnostics before throwing)
const res = await secureFetch(finalUrl, { headers: requestHeaders })
if (!res.ok) {
  const body = await res.text().catch(() => '')
  throw new Error(`HTTP ${res.status} ${res.statusText}: ${body.slice(0, 500)}`)
}
Defensive patterns

Strategy: retry

Validate before calling

async function safeGet(tool: any, maxRetries = 3) {
  for (let attempt = 0; attempt <= maxRetries; attempt++) {
    try {
      return await tool._call({})
    } catch (e) {
      const msg = (e as Error).message
      const m = msg.match(/HTTP Error (\d{3})/)
      const code = m ? Number(m[1]) : 0
      const transient = code === 429 || (code >= 500 && code < 600)
      if (!transient || attempt === maxRetries) throw e
      await new Promise((r) => setTimeout(r, 2 ** attempt * 500))
    }
  }
}

Type guard

const isTransientHttpError = (e: unknown): boolean => {
  const m = (e instanceof Error ? e.message : String(e)).match(/HTTP Error (\d{3})/)
  if (!m) return false
  const c = Number(m[1])
  return c === 429 || (c >= 500 && c < 600)
}

Try / catch

try { return await tool._call({}) }
catch (e) {
  const code = ((e as Error).message.match(/HTTP Error (\d{3})/) || [])[1]
  if (code === '401' || code === '403') throw new Error('Auth required for GET target')
  if (code === '404') throw new Error('GET target not found')
  throw e
}

Prevention

When it happens

Trigger: Target server returns any 4xx or 5xx status; endpoint moved (404); auth required (401/403); upstream gateway error (502/503/504); rate limited (429).

Common situations: Wrong base URL or path; missing/incorrect Authorization header; the API requires an API key not supplied via requestHeaders; transient server outage or maintenance window; rate-limit policy hit.

Related errors


AI-assisted analysis of FlowiseAI/Flowise@abe4a8601a (2026-08-12). Data as JSON: /api/errors/eef07f1cdfcf735a. Report an issue: GitHub.