Files
redocly-cli/docs/rules/operation-operationId-unique.md
2023-11-17 09:45:03 +00:00

83 lines
2.0 KiB
Markdown

---
slug: /docs/cli/rules/operation-operationId-unique
---
# operation-operationId-unique
Requires unique `operationId` values for each operation.
| OAS | Compatibility |
| --- | ------------- |
| 2.0 | ✅ |
| 3.0 | ✅ |
| 3.1 | ✅ |
## API design principle
The `operationId` is used by tooling to identify operations (which are otherwise done through scary looking JSON pointers).
The `operationId` should be unique (used only once in an OpenAPI description).
This rule is unopinionated.
## Configuration
| Option | Type | Description |
| -------- | ------ | ------------------------------------------------------------------------------------------ |
| severity | string | Possible values: `off`, `warn`, `error`. Default `error` (in `recommended` configuration). |
An example configuration:
```yaml
rules:
operation-operationId-unique: error
```
## Examples
Given this configuration:
```yaml
rules:
operation-operationId-unique: error
```
Example of **incorrect** operations:
```yaml
paths:
/cars:
get:
operationId: Car
# ...
post:
operationId: Car
# ...
```
Example of **correct** operations:
```yaml
paths:
/cars:
get:
operationId: getCar
# ...
post:
operationId: postCar
# ...
```
## Related rules
- [operation-summary](./operation-summary.md)
- [operation-operationId-url-safe](./operation-operationId-url-safe.md)
- [operation-operationId](./operation-operationId.md)
- [configurable rules](./configurable-rules.md)
## Resources
- [Rule source](https://github.com/Redocly/redocly-cli/blob/main/packages/core/src/rules/common/operation-operationId-unique.ts)
- [Operation object docs](https://redocly.com/docs/openapi-visual-reference/operation/)
- Consider using [configurable rules](./configurable-rules.md) for more specific rules for `operationId`s such as length, casing, and pattern enforcement.