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contract-add-endpoints

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Actualizado15 de marzo de 2026 a las 04:47

Adds or updates endpoints in the OpenAPI contract based on the running API. Analyzes route files, DTO schemas, and real HTTP responses for each endpoint variant. Use when the user asks to add endpoints to the OpenAPI spec, update the contract, document a new route, or generate OpenAPI definitions from a running Express/Node API.

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name	contract-add-endpoints
description	Adds or updates endpoints in the OpenAPI contract based on the running API. Analyzes route files, DTO schemas, and real HTTP responses for each endpoint variant. Use when the user asks to add endpoints to the OpenAPI spec, update the contract, document a new route, or generate OpenAPI definitions from a running Express/Node API.

Add Endpoints to OpenAPI Contract

Contract structure (split by entities)

Kontrakt jest rozdzielony na wiele plików. Są 2 pliki YAML w contract/ oraz pliki encji przy kodzie w src/:

Plik	Rola
`contract/entry.yaml`	Źródło – shared components (parameters, responses, Pagination, ErrorResponse), `tags`, oraz `$ref` do paths w plikach encji. Edytuj ten plik gdy dodajesz shared components lub nową encję.
`contract/openapi.yaml`	Wynik bundlingu – jeden pełny plik bez zewnętrznych `$ref`. Generowany przez `npm run contract:bundle` – nie edytuj ręcznie. Używany przez Swagger UI, generatory typów, orval.

Plik encji	Zawartość
`src/<domain>/<domain>-openapi.yaml`	Paths + schematy domenowe dla danej encji (np. `src/drivers/drivers-openapi.yaml`). Odwołuje się do shared przez `$ref: '../../contract/entry.yaml#/components/...'`. Edytuj ten plik gdy dodajesz endpointy do istniejącej encji.

Przepływ bundlingu:

entry.yaml + src/*/...-openapi.yaml  ──[redocly bundle]──>  openapi.yaml

Podgląd dokumentacji: npm run contract:serve – uruchamia scripts/serve-contract.js ( bundle + minimalna Express + Swagger UI na porcie 3030). Otwórz http://localhost:3030/api-docs.

Nowa encja: Dodaj $ref w contract/entry.yaml (paths) oraz utwórz src/<domain>/<domain>-openapi.yaml z paths i schemas. Shared components pozostają w entry.yaml.

Workflow

1. Read the implementation

Read in order:

src/<domain>/<domain>.routes.ts – all endpoints, HTTP methods, status codes, error branches
src/<domain>/<domain>.dto.ts – Zod schemas (request body, response shapes)
src/drizzle/schema.ts – Drizzle column types (especially decimal/numeric → returned as string by pg driver)
src/shared/pagination.types.ts – if the endpoint is paginated

2. Make real HTTP requests

For every endpoint, run actual requests against the running Docker API (http://localhost:3000).

Cover all response variants that the implementation produces. The list below is illustrative – actual status codes depend on the implementation (may include 401, 403, 409, 422, 503, etc.):

Variant	How to trigger
2xx (200, 201, 204, …)	Valid request
400	Missing required field / wrong type in body
404	ID that doesn't exist (e.g. `99999`)
5xx	Usually not triggerable manually – document from code

# List with pagination
curl -s "http://localhost:3000/<resource>?page=1&limit=5" | jq .

# Single resource
curl -s http://localhost:3000/<resource>/1 | jq .

# 404
curl -s http://localhost:3000/<resource>/99999 | jq .

# POST – happy path
curl -s -X POST http://localhost:3000/<resource> \
  -H "Content-Type: application/json" \
  -d '{ <valid body> }' | jq .

# POST – validation error (400)
curl -s -X POST http://localhost:3000/<resource> \
  -H "Content-Type: application/json" \
  -d '{ <missing required field> }' | jq .

# PUT – update
curl -s -X PUT http://localhost:3000/<resource>/1 \
  -H "Content-Type: application/json" \
  -d '{ <body> }' | jq .

# DELETE – check status code only
curl -s -o /dev/null -w "%{http_code}" -X DELETE http://localhost:3000/<resource>/1

# DELETE – 404
curl -s -X DELETE http://localhost:3000/<resource>/99999 | jq .

3. Build OpenAPI definitions from real responses

Use actual JSON responses as example values. Never invent example data.

Key rules:

decimal/numeric Drizzle columns → OpenAPI type string (pg driver serialises them, e.g. "51.1")
Nullable Drizzle columns → nullable: true in OpenAPI
DELETE 204 → no content block in the response
400 responses → no example; write a logical description explaining that the payload has an invalid structure or missing/invalid fields (do NOT quote the specific Zod error message)
5xx responses → use $ref: "#/components/responses/InternalServerError" (reusable)

4. Use reusable components

Before writing inline definitions, check components for existing reusable entries:

components:
  parameters:
    PageParam:       # ?page= query param
    LimitParam:      # ?limit= query param
    PathIdParam:     # /{id} path param (generic integer id)

  responses:
    InternalServerError:   # 500 – reused by all endpoints

  schemas:
    Pagination:      # pagination metadata object
    ErrorResponse:   # { error: string }

Reference them instead of repeating inline. In contract/entry.yaml (when referencing from within entry), use internal refs:

parameters:
  - $ref: "#/components/parameters/PageParam"
  - $ref: "#/components/parameters/LimitParam"

responses:
  "500":
    $ref: "#/components/responses/InternalServerError"

In entity files (src/<domain>/<domain>-openapi.yaml), shared components live in contract/entry.yaml – reference them via external $ref:

$ref: '../../contract/entry.yaml#/components/parameters/PageParam'
$ref: '../../contract/entry.yaml#/components/responses/InternalServerError'
$ref: '../../contract/entry.yaml#/components/schemas/ErrorResponse'
$ref: '../../contract/entry.yaml#/components/schemas/Pagination'

5. Add to the entity file in `src/<domain>/<domain>-openapi.yaml`

Do not edit contract/openapi.yaml – it is generated. Edit the entity file next to the code.

Structure of src/<domain>/<domain>-openapi.yaml:

paths:
  /<resource>:
    get: ...
    post: ...
  /<resource>/{id}:
    get: ...
    put: ...
    delete: ...

components:
  schemas:
    <Resource>:             # select schema (single item)
    <Resource>ListResponse: # paginated list (references Pagination via $ref to entry.yaml)
    <Resource>CreateInput:  # POST body
    <Resource>UpdateInput:  # PUT body (partial)

Parameters, responses, Pagination, ErrorResponse → use $ref to ../../contract/entry.yaml#/components/...
Domain-specific schemas → define locally in components/schemas of the entity file

Every operation must have:

operationId (camelCase, e.g. getVehicleById)
tags referencing the domain tag (e.g. Drivers, Customers, Vehicles)
summary (one line)
All status codes documented with schema + example (except 400 and 5xx – no example)

Adding a new domain/entity: create src/<domain>/<domain>-openapi.yaml and add path entries in contract/entry.yaml:

paths:
  /<resource>:
    $ref: '../src/<domain>/<domain>-openapi.yaml#/paths/~1<resource>'
  /<resource>/{id}:
    $ref: '../src/<domain>/<domain>-openapi.yaml#/paths/~1<resource>~1{id}'

Also add the tag in contract/entry.yaml if the domain is new.

6. Bundle, preview, and validate

Bundle – merges entry.yaml + entity files into contract/openapi.yaml (run automatically by generate:types and contract:serve):

cd tms-api && npm run contract:bundle

Preview – serve Swagger UI on port 3030 to verify the contract visually:

cd tms-api && npm run contract:serve

Opens http://localhost:3030/api-docs. The script bundles the contract before serving.

Validate – run from tms-api:

Check	Command
Lint source (entry + entity files)	`npm run contract:lint`
Lint bundled output	`npm run contract:validate:minimal`
Full Redocly lint (stricter)	`npm run contract:validate`

contract:lint → validates contract/entry.yaml (and refs to entity files)
contract:validate:minimal → validates contract/openapi.yaml (bundled output)

Dependencies: js-yaml, @redocly/cli, swagger-ui-express, express. Run npm install in tms-api if needed.

Common pitfalls

Never edit contract/openapi.yaml – it is generated by bundle. Edit contract/entry.yaml (shared) or src/<domain>/<domain>-openapi.yaml (entity paths + schemas).
tags at root level, not inside components
exclusiveMinimum: true for positive-only numbers (OpenAPI 3.0 syntax)
Pagination query params (page, limit) modelled as in: query, not in request body
nullable: true required for optional Drizzle columns; omitting it causes false schema violations
400 description must be logical (e.g. "payload has invalid structure"), not a copy of a specific error message
500 must always use $ref: "#/components/responses/InternalServerError", never inline

contract-add-endpoints

Más de este repositorio

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Add Endpoints to OpenAPI Contract

Contract structure (split by entities)

Workflow

1. Read the implementation

2. Make real HTTP requests

3. Build OpenAPI definitions from real responses

4. Use reusable components

5. Add to the entity file in src/<domain>/<domain>-openapi.yaml

6. Bundle, preview, and validate

Common pitfalls

Add Endpoints to OpenAPI Contract

Contract structure (split by entities)

Workflow

1. Read the implementation

2. Make real HTTP requests

3. Build OpenAPI definitions from real responses

4. Use reusable components

5. Add to the entity file in src/<domain>/<domain>-openapi.yaml

6. Bundle, preview, and validate

Common pitfalls

5. Add to the entity file in `src/<domain>/<domain>-openapi.yaml`

5. Add to the entity file in `src/<domain>/<domain>-openapi.yaml`