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api-ref-bundler

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This package provides utils to resolve all external/internal references in Json based API document and bundle/dereference into single document

Works perfectly with API specifications

Features

  • bundle all external refs in signle document
  • converts external references into internal
  • support full and partial dereference
  • support external '.md' references
  • support for all kinds of circularity
  • no concept of resolvers - you are in charge of the whole reading & path parsing process
  • no parser included - bring your own!
  • Typescript syntax support out of the box
  • No dependencies, can be used in nodejs or browser

Installation

npm install api-ref-bundler --save

Usage

Nodejs

import { promises as fs } from 'fs'
import { bundle, dereference } from 'api-ref-bundler'

const resolver = async (sourcePath) => {
  const data = await fs.readFile(path.join(__dirname, "./", sourcePath), "utf8")
  return sourcePath.slice(-3) === ".md" ? data : JSON.parse(data)      
}

// bundle (convert all external refs to internal)
bundle("schema.json", resolver, { ignoreSibling: true }).then(schema => {
  console.log(schema)
}).catch(errors => {
  console.log(errors)
})

const onErrorHook = (msg: string) => {
  throw new Error(msg)
}

// full dereference (remove all refs)
dereference("schema.json", resolver, { hooks: { onError: onErrorHook }}).then(schema => {
  console.log(schema)
}).catch(errors => {
  console.log(errors)
})

// partial dereference (remove all refs in path '/properties/foo')
dereference("schema.json#/properties/foo", resolver).then(foo => {
  console.log(foo)
}).catch(errors => {
  console.log(errors)
})

Bundle options

interface BundleOptions {
  ignoreSibling?: boolean     // ignore $ref sibling content
  hooks?: {
    onError?: (message: string, ctx: BundleContext) => void // error hook
    onRef?: (ref: string, ctx: BundleContext) => void       // ref hook
    onCrawl?: (value: any, ctx: BundleContext) => void      // node crawl hook
    onExit?: (value: any, ctx: BundleContext) => void      // node crawl exit hook
  }
}

Dereference options

interface DereferenceOptions {
  ignoreSibling?: boolean   // ignore $ref sibling content
  fullCrawl?: boolean       // crawl all nodes includin cached
  enableCircular?: boolean  // convert circular $refs to nodes
  hooks?: {
    onError?: (message: string, ctx: DereferenceContext) => void  // error hook
    onRef?: (ref: string, ctx: DereferenceContext) => void        // ref hook
    onCrawl?: (value: any, ctx: DereferenceContext) => void       // node crawl hook
    onExit?: (value: any, ctx: DereferenceContext) => void       // node crawl exit hook
    onCycle?: (ref: string, ctx: DereferenceContext) => void      // cycle refs hook
  }
}

Browsers

A browser version of api-ref-bundler is also available via CDN:

<script src="https://cdn.jsdelivr.net/npm/api-ref-bundler@latest"></script>

Reference api-ref-bundler in your HTML and use the global variable ApiRefBundler.

<script>
  const resolver = async (sourcePath) => {
    const data = await fetch(sourcePath)
    return sourcePath.slice(-3) === ".md" ? data.text() : data.json()
  }

  ApiRefBundler.bundle("http://example.com/schema", resolver).then(schema => {
    console.log(schema)
  }).catch(errors => {
    console.log(errors)
  })  
</script>

Contributing

When contributing, keep in mind that it is an objective of api-ref-bundler to have no package dependencies. This may change in the future, but for now, no-dependencies.

Please run the unit tests before submitting your PR: npm test. Hopefully your PR includes additional unit tests to illustrate your change/modification!

License

MIT

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Bundle all external $ref in Json based API document into single document

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