{"record":{"id":"58a3a63c383a9a44","repo":"googleapis/mcp-toolbox","slug":"failed-to-create-request-w","errorCode":null,"errorMessage":"failed to create request: %w","messagePattern":"failed to create request: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/tools/bigquery/bigqueryconversationalanalytics/bigqueryconversationalanalytics.go","lineNumber":277,"sourceCode":"}\n\nfunc (t Tool) RequiresClientAuthorization(source sources.Source) (bool, error) {\n\ts, ok := source.(compatibleSource)\n\tif !ok {\n\t\treturn false, fmt.Errorf(\"invalid source for %q tool: source %q is not a compatible type\", t.Cfg.Type, t.Cfg.Source)\n\t}\n\treturn s.UseClientAuthorization(), nil\n}\n\nfunc getStream(client *http.Client, url string, payload CAPayload, headers map[string]string, maxRows int) (string, error) {\n\tpayloadBytes, err := json.Marshal(payload)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to marshal payload: %w\", err)\n\t}\n\n\treq, err := http.NewRequest(\"POST\", url, bytes.NewBuffer(payloadBytes))\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to create request: %w\", err)\n\t}\n\tfor k, v := range headers {\n\t\treq.Header.Set(k, v)\n\t}\n\n\tresp, err := client.Do(req)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to send request: %w\", err)\n\t}\n\tdefer resp.Body.Close()\n\n\tif resp.StatusCode != http.StatusOK {\n\t\tbody, _ := io.ReadAll(resp.Body)\n\t\treturn \"\", fmt.Errorf(\"API returned non-200 status: %d %s\", resp.StatusCode, string(body))\n\t}\n\n\tvar messages []map[string]any\n\tdecoder := json.NewDecoder(resp.Body)","sourceCodeStart":259,"sourceCodeEnd":295,"githubUrl":"https://github.com/googleapis/mcp-toolbox/blob/8cc6e09de2ad7b8bffc77751799585a1401a48eb/internal/tools/bigquery/bigqueryconversationalanalytics/bigqueryconversationalanalytics.go#L259-L295","documentation":"After marshaling, getStream builds the HTTP POST request to the Conversational Analytics `:chat` endpoint with http.NewRequest. If the URL is malformed or the method/body is invalid, this wrapped error is returned. It indicates the request could not even be constructed, before any network I/O occurs.","triggerScenarios":"Invoke on the tool when the resolved endpoint URL (util.GetGDAEndpoint() formatted with project/location) is malformed — e.g. an invalid GDA endpoint override producing a non-parseable URL.","commonSituations":"Misconfigured endpoint environment variable (e.g. GDA endpoint override with spaces or missing scheme); proxy or region-poke endpoints with wrong formatting; typos when overriding the default googleapis endpoint for testing.","solutions":["Check the environment variable controlling the GDA endpoint (util.GetGDAEndpoint) — unset it to use the default https://api.googleapis.com style endpoint.","Ensure the endpoint value includes a valid scheme (https://) and no whitespace.","Verify the source's BigQuery project and location strings are valid (no illegal URL characters), since they are interpolated into the URL.","Log the final URL and paste it into a parser/curl to confirm validity."],"exampleFix":"// before\nexport GDA_ENDPOINT=\"api.googleapis.com v1\"\n// after\nunset GDA_ENDPOINT  # or export GDA_ENDPOINT=\"https://custom-endpoint.example.com\"","handlingStrategy":"validation","validationCode":"u, err := url.Parse(endpoint)\nif err != nil || u.Scheme == \"\" || u.Host == \"\" {\n    return fmt.Errorf(\"invalid GDA endpoint: %q\", endpoint)\n}","typeGuard":null,"tryCatchPattern":"result, err := tool.Invoke(ctx, params)\nif err != nil && strings.Contains(err.Error(), \"failed to create request\") {\n    return fmt.Errorf(\"check endpoint configuration: %w\", err)\n}","preventionTips":["Do not override the GDA endpoint env var unless testing, and always include https://.","Validate project/location strings for illegal URL characters.","Log the resolved endpoint URL at startup."],"tags":["go","http","url","configuration"],"backgroundTag":"invalid-request-url","analyzedSha":"8cc6e09de2ad7b8bffc77751799585a1401a48eb","analyzedAt":"2026-09-05T01:10:36.887Z","contentChangedAt":"2026-09-05T01:10:36.887Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}