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docs/script/rest/utils/get-body-params.js
2022-11-10 18:25:08 +00:00

174 lines
7.4 KiB
JavaScript

#!/usr/bin/env node
import renderContent from '../../../lib/render-content/index.js'
// If there is a oneOf at the top level, then we have to present just one
// in the docs. We don't currently have a convention for showing more than one
// set of input parameters in the docs. Having a top-level oneOf is also very
// uncommon.
// Currently there aren't very many operations that require this treatment.
// As an example, the 'Add status check contexts' and 'Set status check contexts'
// operations have a top-level oneOf.
async function getTopLevelOneOfProperty(schema) {
if (!schema.oneOf) {
throw new Error('Schema does not have a requestBody oneOf property defined')
}
if (!(Array.isArray(schema.oneOf) && schema.oneOf.length > 0)) {
throw new Error('Schema requestBody oneOf property is not an array')
}
// When a oneOf exists but the `type` differs, the case has historically
// been that the alternate option is an array, where the first option
// is the array as a property of the object. We need to ensure that the
// first option listed is the most comprehensive and preferred option.
const firstOneOfObject = schema.oneOf[0]
const allOneOfAreObjects = schema.oneOf.every((elem) => elem.type === 'object')
let required = firstOneOfObject.required || []
let properties = firstOneOfObject.properties || {}
// When all of the oneOf objects have the `type: object` we
// need to display all of the parameters.
// This merges all of the properties and required values.
if (allOneOfAreObjects) {
for (const each of schema.oneOf.slice(1)) {
Object.assign(firstOneOfObject.properties, each.properties)
required = firstOneOfObject.required.concat(each.required)
}
properties = firstOneOfObject.properties
}
return { properties, required }
}
// Gets the body parameters for a given schema recursively.
export async function getBodyParams(schema, topLevel = false) {
const bodyParametersParsed = []
const schemaObject = schema.oneOf && topLevel ? await getTopLevelOneOfProperty(schema) : schema
const properties = schemaObject.properties || {}
const required = schemaObject.required || []
for (const [paramKey, param] of Object.entries(properties)) {
const paramDecorated = {}
// OpenAPI 3.0 only had a single value for `type`. OpenAPI 3.1
// will either be a single value or an array of values.
// This makes type an array regardless of how many values the array
// includes. This allows us to support 3.1 while remaining backwards
// compatible with 3.0.
const paramType = Array.isArray(param.type) ? param.type : [param.type]
const additionalPropertiesType = param.additionalProperties
? Array.isArray(param.additionalProperties.type)
? param.additionalProperties.type
: [param.additionalProperties.type]
: []
const childParamsGroups = []
// If the parameter is an array or object there may be child params
// If the parameter has oneOf or additionalProperties, they need to be
// recursively read too.
// There are a couple operations with additionalProperties, which allows
// the api to define input parameters with the type dictionary. These are the only
// two operations (at the time of adding this code) that use additionalProperties
// Create a snapshot of dependencies for a repository
// Update a gist
if (param.additionalProperties && additionalPropertiesType.includes('object')) {
const keyParam = {
type: 'object',
name: 'key',
description: await renderContent(
`A user-defined key to represent an item in \`${paramKey}\`.`
),
isRequired: param.required,
enum: param.enum,
default: param.default,
childParamsGroups: [],
}
keyParam.childParamsGroups.push(...(await getBodyParams(param.additionalProperties, false)))
childParamsGroups.push(keyParam)
} else if (paramType && paramType.includes('array')) {
const arrayType = param.items.type
if (arrayType) {
paramType.splice(paramType.indexOf('array'), 1, `array of ${arrayType}s`)
}
if (arrayType === 'object') {
childParamsGroups.push(...(await getBodyParams(param.items, false)))
}
} else if (paramType && paramType.includes('object')) {
childParamsGroups.push(...(await getBodyParams(param, false)))
} else if (param && param.oneOf) {
// get concatenated description and type
const descriptions = []
for (const childParam of param.oneOf) {
paramType.push(childParam.type)
// If there is no parent description, create a description from
// each type
if (!param.description) {
if (childParam.type === 'array') {
if (childParam.items.description) {
descriptions.push({
type: childParam.type,
description: childParam.items.description,
})
}
} else {
if (childParam.description) {
descriptions.push({ type: childParam.type, description: childParam.description })
}
}
}
}
// Occasionally, there is no parent description and the description
// is in the first child parameter.
const oneOfDescriptions = descriptions.length ? descriptions[0].description : ''
if (!param.description) param.description = oneOfDescriptions
// This is a workaround for an operation that incorrectly defines allOf for a
// body parameter. As a workaround, we will use the first object in the list of
// the allOf array. Otherwise, fallback to the first item in the array.
// This isn't ideal, and in the case of an actual allOf occurrence, we should
// handle it differently by merging all of the properties. There is currently
// only one occurrence for the operation id repos/update-information-about-pages-site
// See Ecosystem API issue number #3332 for future plans to fix this in the OpenAPI
} else if (param && param.anyOf && Object.keys(param).length === 1) {
const firstObject = Object.values(param.anyOf).find((item) => item.type === 'object')
if (firstObject) {
paramType.push('object')
param.description = firstObject.description
param.isRequired = firstObject.required
childParamsGroups.push(...(await getBodyParams(firstObject, false)))
} else {
paramType.push(param.anyOf[0].type)
param.description = param.anyOf[0].description
param.isRequired = param.anyOf[0].required
}
}
// Supports backwards compatibility for OpenAPI 3.0
// In 3.1 a nullable type is part of the param.type array and
// the property param.nullable does not exist.
if (param.nullable) paramType.push('null')
paramDecorated.type = paramType.filter(Boolean).join(' or ')
paramDecorated.name = paramKey
if (topLevel) {
paramDecorated.in = 'body'
}
paramDecorated.description = await renderContent(param.description)
if (required.includes(paramKey)) {
paramDecorated.isRequired = true
}
if (childParamsGroups.length > 0) {
paramDecorated.childParamsGroups = childParamsGroups
}
if (param.enum) {
paramDecorated.enum = param.enum
}
// we also want to catch default values of `false` for booleans
if (param.default !== undefined) {
paramDecorated.default = param.default
}
bodyParametersParsed.push(paramDecorated)
}
return bodyParametersParsed
}