{"record":{"id":"6786ec889868b181","repo":"decolua/9router","slug":"callbackparams-error-description-callbackpara-6786ec","errorCode":null,"errorMessage":"${callbackParams.error_description || callbackParams.error}","messagePattern":"\\$\\{callbackParams\\.error_description \\|\\| callbackParams\\.error\\}","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/lib/oauth/services/xai.js","lineNumber":217,"sourceCode":"      console.log(\"\\nOpening browser for xAI authentication...\");\n      console.log(`If browser doesn't open, visit:\\n${authUrl}\\n`);\n      await open(authUrl);\n\n      spinner.start(\"Waiting for xAI authorization...\");\n      await new Promise((resolve, reject) => {\n        const timeout = setTimeout(() => reject(new Error(\"Authentication timeout (5 minutes)\")), 300000);\n        const iv = setInterval(() => {\n          if (callbackParams) {\n            clearInterval(iv);\n            clearTimeout(timeout);\n            resolve();\n          }\n        }, 100);\n      });\n      close();\n\n      if (callbackParams.error) {\n        throw new Error(callbackParams.error_description || callbackParams.error);\n      }\n      if (!callbackParams.code) throw new Error(\"No authorization code received\");\n      if (callbackParams.state !== state) throw new Error(\"Invalid state parameter\");\n\n      spinner.start(\"Exchanging code for tokens...\");\n      const tokens = await this.exchangeXaiCode({\n        tokenUrl,\n        code: callbackParams.code,\n        redirectUri,\n        codeVerifier,\n      });\n\n      const email = decodeIdTokenEmail(tokens.id_token);\n      spinner.succeed(\"xAI connected successfully!\");\n      return { tokens, email };\n    } catch (error) {\n      spinner.fail(`Failed: ${error.message}`);\n      throw error;","sourceCodeStart":199,"sourceCodeEnd":235,"githubUrl":"https://github.com/decolua/9router/blob/90b52e06ffd666b7929554211474d01588f6b1f8/src/lib/oauth/services/xai.js#L199-L235","documentation":"The xAI OAuth provider returned an authorization error to the local loopback callback (e.g. ?error=access_denied&error_description=...). connect() surfaces the provider's error_description, or the bare error code if no description was sent, instead of proceeding to the token exchange. This is the OAuth spec-defined failure path of the authorization-code flow, thrown before any tokens are requested.","triggerScenarios":"During xaiOAuthService.connect(), the browser redirect lands on the loopback callback with a non-empty `error` query parameter (e.g. access_denied, unauthorized_client, server_error) because xAI's authorize endpoint rejected the request.","commonSituations":"User clicked 'Cancel'/'Deny' on the xAI consent screen; the xAI account lacks access to the requested scopes; the authorize URL carries a bad client_id or redirect_uri (misconfigured/reordered XAI_CONFIG or stale discovered endpoints); rate limits or a transient xAI outage producing server_error; cached browser session reusing an expired/revoked consent.","solutions":["Read the thrown message (it is xAI's error_description) and address the specific cause: access_denied means the user must re-run connect() and approve the consent prompt","Re-run connect() and complete authorization in the browser window instead of cancelling","Verify XAI_CONFIG.clientId/redirect settings and that discoverEndpoints() resolves valid xAI authorize/token URLs","Check the xAI account/organization has the necessary entitlements for the requested scopes","Retry later if the message indicates a server-side xAI issue (server_error, temporarily_unavailable)"],"exampleFix":"// before: denial surfaces only as a raw CLI failure\nawait xai.connect();\n// after: handle the user-denied case explicitly\ntry {\n  await xai.connect();\n} catch (e) {\n  if (/access_denied/i.test(e.message)) {\n    console.log('Authorization was cancelled — rerun connect and approve access.');\n  } else {\n    throw e;\n  }\n}","handlingStrategy":"try-catch","validationCode":"// Cannot pre-validate the provider's decision; inspect the callback before or catch the throw.\nconst params = new URL(callbackUrl).searchParams;\nif (params.get('error')) {\n  console.log('OAuth provider error:', params.get('error_description') || params.get('error'));\n}","typeGuard":"function isOAuthError(params) {\n  return typeof params === 'object' && params !== null && typeof params.error === 'string' && params.error.length > 0;\n}","tryCatchPattern":"try {\n  await xai.connect();\n} catch (err) {\n  // message is error_description || error from the provider\n  if (err.message.includes('access_denied')) {\n    // user cancelled — prompt retry\n  } else {\n    throw err;\n  }\n}","preventionTips":["Complete the consent screen rather than cancelling it","Verify xAI client_id/redirect config before starting the flow","Keep the auth URL unmodified and use the freshly generated one","Check account entitlements for requested scopes","Retry on transient server_error codes"],"tags":["oauth","xai","authorization-denied","callback"],"backgroundTag":"oauth-authorization-error","analyzedSha":"90b52e06ffd666b7929554211474d01588f6b1f8","analyzedAt":"2026-08-30T21:05:45.952Z","schemaVersion":2},"datasetVersion":"2026-08-30T23:17:21.991Z"}