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Web Component

If you are not using React you may want to use the @asyncapi/web-component component as a plain web component in any other web framework of your choice or as an element of a static HTML webpage. This is achieved by making use of web-react-components.

Installation

Run this command to install the component in your project:

npm install --save @asyncapi/web-component

Check out this simple sandbox application that uses the Web Component in Angular project:

Edit asyncapi-web-component-in-action

Usage in frameworks

Check how to use the Web Component in:

Usage in HTML webpage

<!-- Remove 'webcomponentsjs' if no support for older browsers is required -->
<script src="https://unpkg.com/@webcomponents/[email protected]/webcomponents-bundle.js"></script>
<script src="https://unpkg.com/@asyncapi/[email protected]/lib/asyncapi-web-component.js" defer></script>

<asyncapi-component
  schemaUrl="https://raw.githubusercontent.com/asyncapi/asyncapi/master/examples/2.0.0/streetlights.yml"
  config='{"show": {"info": false}}'
  schemaFetchOptions='{"method":"GET","mode":"cors"}' <!-- Remove if it is only a plain browser request -->
  cssImportPath="https://unpkg.com/@asyncapi/[email protected]/styles/default.min.css">
</asyncapi-component>

NOTE: webcomponentsjs is a series of polyfills to make code runnable in old browsers. It is optional if you do not intend to support any.

NOTE: If a Web Component is called with no properties at all, the error will be shown on the page.

NOTE: If there are several Web Components on one page, each one will be rendered using its own properties.

Props

When invoked as an independent entity, Web Component takes the following props (as it is still a React component):

  • schema is a schema property from the React component,

    NOTE: Since version 0.19.0 specifying a schema object can be omitted. schema.url and schema.requestOptions can be replaced with schemaUrl and schemaFetchOptions properties accordingly.

  • config is an optional config property from the React component in the stringified JSON format,
  • schemaUrl property is a string, specific to Web Component, containing a URL to fetch an AsyncAPI Schema from. It is a wrapper for schema.url property in schema object under the hood,

    NOTE: If schemaUrl property is specified, the schema.url property of the React component will be ignored.

  • schemaFetchOptions property is an optional object of RequestInit type in JSON format, specific to Web Component, containing additional fetching options. It is a wrapper for schema.requestOptions property in schema object, which are both needed only in case process of fetching from a URL is any different from a usual browser request,

    NOTE: If schemaFetchOptions property is specified, schema.requestOptions property of the React component will be ignored. If schemaUrl property is NOT specified, schemaFetchOptions will be ignored itself and schema.url/schema.requestOptions properties of the React component must be used in this case.

  • cssImportPath property is the path to styles. Default version from unpkg.com contains guaranteed minimum styling for the Web Component,