Files
shields/services/dynamic/dynamic-json.service.js
T
chris48sandGitHub 14892e3943 Implement a pattern for dealing with upstream APIs which are slow on the first hit; affects [endpoint] (#9233)
* allow serviceData to override cacheSeconds with a longer value

* prevent [endpoint] json cacheSeconds property exceeding service default

* allow ShieldsRuntimeError to specify a cacheSeconds property

By default error responses use the cacheLength of
the service class throwing the error.

This allows error to tell the handling layer the maxAge
that should be set on the error badge response.

* add customExceptions param

This

1. allows us to specify custom properties to pass to the exception
   constructor if we throw any of the standard got errors
   e.g: `ETIMEDOUT`, `ECONNRESET`, etc
2. uses a custom `cacheSeconds` property (if set on the exception)
   to set the response maxAge

* customExceptions --> systemErrors

* errorMessages --> httpErrors
2023-06-13 21:08:43 +01:00

65 lines
1.9 KiB
JavaScript

import { MetricNames } from '../../core/base-service/metric-helper.js'
import { BaseJsonService } from '../index.js'
import { createRoute } from './dynamic-helpers.js'
import jsonPath from './json-path.js'
export default class DynamicJson extends jsonPath(BaseJsonService) {
static enabledMetrics = [MetricNames.SERVICE_RESPONSE_SIZE]
static route = createRoute('json')
static openApi = {
'/badge/dynamic/json': {
get: {
summary: 'Dynamic JSON Badge',
description: `<p>
The Dynamic JSON Badge allows you to extract an arbitrary value from any
JSON Document using a JSONPath selector and show it on a badge.
</p>`,
parameters: [
{
name: 'url',
description: 'The URL to a JSON document',
in: 'query',
required: true,
schema: { type: 'string' },
example:
'https://github.com/badges/shields/raw/master/package.json',
},
{
name: 'query',
description:
'A <a href="https://jsonpath.com/">JSONPath</a> expression that will be used to query the document',
in: 'query',
required: true,
schema: { type: 'string' },
example: '$.name',
},
{
name: 'prefix',
description: 'Optional prefix to append to the value',
in: 'query',
required: false,
schema: { type: 'string' },
example: '[',
},
{
name: 'suffix',
description: 'Optional suffix to append to the value',
in: 'query',
required: false,
schema: { type: 'string' },
example: ']',
},
],
},
},
}
async fetch({ schema, url, httpErrors }) {
return this._requestJson({
schema,
url,
httpErrors,
})
}
}