# Warmup

## Preload all tenant configurations

> Sequentially loads configuration for all tenants to populate caches and avoid cold-start delays.\
> \
> \## Purpose\
> \- \*\*Reduce First-Request Latency\*\*: Pre-populates caches before real traffic arrives\
> \- \*\*Prevent Request Pile-Up\*\*: Avoids concurrent configuration loads during app startup\
> \- \*\*Improve User Experience\*\*: Ensures fast response times from the first request\
> \
> \## Behavior\
> \- Acquires an exclusive lock to prevent concurrent warmup operations\
> \- Returns HTTP 425 (Too Early) if another warmup is already in progress\
> \- Processes each tenant sequentially (not in parallel)\
> \- Continues warmup even if individual tenants fail (logs errors)\
> \- Respects cancellation tokens for graceful shutdown\
> \
> \## Typical Usage\
> Should be called by:\
> \- Azure App Service warmup triggers\
> \- Kubernetes readiness probes\
> \- Deployment scripts\
> \- Health check systems\
> \
> \## Performance Considerations\
> \- Duration depends on number of tenants\
> \- May take several seconds to minutes for large deployments\
> \- Does not block other API requests

```json
{"openapi":"3.1.1","info":{"title":"Neostore internal API","version":"v1"},"tags":[{"name":"Warmup"}],"servers":[{"url":"https://app.neostore.cloud","description":"Production Server"},{"url":"https://app-qa.neostore.cloud","description":"Staging Server"}],"paths":{"/api/warmup":{"get":{"tags":["Warmup"],"summary":"Preload all tenant configurations","description":"Sequentially loads configuration for all tenants to populate caches and avoid cold-start delays.\n\n## Purpose\n- **Reduce First-Request Latency**: Pre-populates caches before real traffic arrives\n- **Prevent Request Pile-Up**: Avoids concurrent configuration loads during app startup\n- **Improve User Experience**: Ensures fast response times from the first request\n\n## Behavior\n- Acquires an exclusive lock to prevent concurrent warmup operations\n- Returns HTTP 425 (Too Early) if another warmup is already in progress\n- Processes each tenant sequentially (not in parallel)\n- Continues warmup even if individual tenants fail (logs errors)\n- Respects cancellation tokens for graceful shutdown\n\n## Typical Usage\nShould be called by:\n- Azure App Service warmup triggers\n- Kubernetes readiness probes\n- Deployment scripts\n- Health check systems\n\n## Performance Considerations\n- Duration depends on number of tenants\n- May take several seconds to minutes for large deployments\n- Does not block other API requests","responses":{"200":{"description":"Warmup completed successfully."},"425":{"description":"Another warmup operation is already in progress.","content":{"text/plain":{"schema":{"oneOf":[{"$ref":"#/components/schemas/ProblemDetails"},{"$ref":"#/components/schemas/HttpValidationProblemDetails"}]}},"application/json":{"schema":{"oneOf":[{"$ref":"#/components/schemas/ProblemDetails"},{"$ref":"#/components/schemas/HttpValidationProblemDetails"}]}},"text/json":{"schema":{"oneOf":[{"$ref":"#/components/schemas/ProblemDetails"},{"$ref":"#/components/schemas/HttpValidationProblemDetails"}]}}}},"500":{"description":"Unexpected server error."}}}}},"components":{"schemas":{"ProblemDetails":{"type":"object","properties":{"type":{"type":["null","string"]},"title":{"type":["null","string"]},"status":{"type":["null","integer"],"format":"int32"},"detail":{"type":["null","string"]},"instance":{"type":["null","string"]}},"additionalProperties":{}},"HttpValidationProblemDetails":{"type":"object","allOf":[{"$ref":"#/components/schemas/ProblemDetails"}],"properties":{"errors":{"type":"object","additionalProperties":{"type":"array","items":{"type":"string"}}}},"additionalProperties":{}}}}}
```