Proposed flow for this scenario
- Method and path
- Selected stage deployment
- Matched route
- Integration target
- Service invoke grant
- Preset result and observations
This flow describes a design to evaluate. Follow the supported console workflow below to practice with local resources. Its scope appears with the controls; no cloud resources are provisioned.
Decision checkpoints
| Choice | Fits when | Watch for |
|---|---|---|
| Route or deployment repair | The request does not select the intended current integration. | Changing execution-role permissions before identifying the selected route. |
| Scoped invocation repair | The chosen API integration lacks its service grant. | Granting every API access to every function as the first repair. |
Capture the request and selected configuration
For synthetic LetX, record the HTTP method, path and selected stage. Inspect which route is expected to match and which deployment the stage uses. A correct draft route may not be in a manually deployed stage’s active snapshot.
Compare the integration target with the function tested directly. Wrong target, missing integration and denied service invocation are separate causes. A generic HTTP error alone cannot choose between them; inspect the available request trace and safe observations.
Repair permission only at the identified boundary
The API service needs permission to invoke the selected function under the intended source scope. The function execution role separately governs downstream work. Repairing its S3 actions does not fix a denied API-to-function call.
In real HTTP APIs, handler response format and integration behavior also matter. Use the official troubleshooting guidance and available access-log error information. Avoid logging raw request contents, credentials or secrets just to obtain a more detailed trace.
Reproduce the console failure and recovery
Create the selected HTTP API and Lambda proxy integration, add the intended route and stage, then run a synthetic request before granting the modeled invoke permission. Inspect the failed integration step.
Add the narrowly scoped permission through the supported control and repeat the same request. Verify the successful preset response and any observations its role is allowed to write. The local console supports selected HTTP API routing and payload behavior, not REST APIs, public HTTP, JWT authorizers or arbitrary handler execution.
Changed scenario and evidence
Question: an auto-deploy stage worked, but the application now selects a manual stage still pointing at an old deployment. Will another function permission grant activate the new route? No. Inspect and deploy the intended configuration.
Keep before-and-after route, stage, target and permission evidence. The console workflow below provides a local route-and-integration diagnostic with a synthetic preset response. In a live account, test the exact deployed URL and integration contract after the specific repair rather than treating a direct Lambda success as end-to-end proof.
Practice the supported console workflow
Sources and scope
Reviewed against these official references. The model’s supported scope appears alongside its controls.
How we review explanations