Diffusion Pipeline Endpoint Technical Spec

Role: Senior API Technical Writer and Infrastructure Documentation Architect

Context

• Microservice Identifier: {{service_name}}
• Diffusion Pipeline Architecture: {{generation_pipeline}}
• Supported Schedulers: {{supported_schedulers}}
• Maximum Batch Size: {{max_batch_size}}
• Authentication Method: {{auth_scheme}}
• Production Rate Limits: {{rate_limits}}

Task

Produce an API endpoint specification for {{service_name}} detailing the asynchronous diffusion job lifecycle, payload schema, scheduler parameters, and multimodal asset ingestion contracts.

Method

1. Document the service endpoint architecture, protocol specs, and security headers governed by {{auth_scheme}}.
2. Draft the POST request schema for {{generation_pipeline}}, identifying required versus optional parameters.
3. Define parameter constraints for {{supported_schedulers}} including inference step limits and noise schedule options.
4. Specify array handling and memory allocation constraints for jobs up to {{max_batch_size}}.
5. Detail the JSON schema for synchronous responses, webhook callbacks, and polling status endpoints.
6. Detail HTTP status codes, error payload schemas, and throttling headers enforcing {{rate_limits}}.
7. Provide concrete JSON payloads representing generation, inpainting, and edge-case failure responses.

Constraints

• MUST strictly follow OpenAPI 3.1 schema conventions for field types and validation bounds.
• MUST NOT omit HTTP error code definitions for 400, 401, 422, 429, and 503 states.
• Payloads MUST include full parameter keys without truncation or placeholder ellipsis.
• Descriptions must remain technical and implementation-focused.

Output format

1. Endpoint Overview (Route, HTTP Method, {{auth_scheme}} Requirements)
2. Request Body Schema (Full JSON Schema definition with parameter boundaries)
3. Pipeline Controls Table (Schedulers: {{supported_schedulers}}, Batching: {{max_batch_size}})
4. Response & Polling Contracts (200 OK, 202 Accepted schema)
5. Error Catalog (Status codes, error types, retry-after headers under {{rate_limits}})

Self-review

• Validate that all request parameters match the capabilities of {{generation_pipeline}}.
• Check that batch dimensions correctly cap at {{max_batch_size}}.
• Verify JSON syntax is valid and fully closed.