web-app-manifest-utils

Utilities for fetching and working with Web app manifests

Installation

Set Up

npm install digitalbazaar/web-app-manifest-utils

Function Calls

getManifest({origin})

• Function call that fetches a manifest from a given url and optionally uses a proxy (via client) as a fallback if a CORS error occurs.
• origin: This is the base url used to fetch the manifest.

getManifestFromOrigin({origin})

• Function call that fetches a manifest from a given url.
• origin: This is the base url used to fetch the manifest.

getManifestFromProxy()

• Function call that fetches a manifest from a provided proxy url (via client).

getManifestWithIcon({colorScheme, defaultIcon, origin, size})

• Function call that fetches a manifest and icon from a given url and optionally uses a proxy (via client) as a fallback if a CORS error occurs.
• colorScheme: This is the preferred color scheme for the icon (ie. 'light' or 'dark').
• defaultIcon: This is an optional defaultIcon to be used as a fallback if no other icons are found.
• origin: This is the base url used to fetch the manifest.
• size: This is the preferred size for the icon.

Example Usage

getManifest({origin})

import {WebAppManifestClient} from 'web-app-manifest-utils';
import https from 'https';

const agent = new https.Agent({rejectUnauthorized: false});

// example origin & manifestProxyHost (localhost)
const origin = `https://localhost:19450`;
const manifestProxyHost = `https://localhost:19451`;

const manifestClient = new WebAppManifestClient({agent, manifestProxyHost});
const result = await manifestClient.getManifest({origin});

getManifestFromOrigin({origin})

import {WebAppManifestClient} from 'web-app-manifest-utils';
import https from 'https';

const agent = new https.Agent({rejectUnauthorized: false});

// example origin (localhost)
const origin = `https://localhost:19451`;

const manifestClient = new WebAppManifestClient({agent});
const result = await manifestClient.getManifestFromOrigin({origin});

getManifestFromProxy()

import {WebAppManifestClient} from 'web-app-manifest-utils';
import https from 'https';

const agent = new https.Agent({rejectUnauthorized: false});

// manifestProxyHost (localhost)
const manifestProxyHost = `https://localhost:19451`;

const manifestClient = new WebAppManifestClient({agent, manifestProxyHost});
const result = await manifestClient.getManifestFromProxy());

getManifestWithIcon({colorScheme, defaultIcon, origin, size})

import {WebAppManifestClient} from 'web-app-manifest-utils';
import https from 'https';

const agent = new https.Agent({rejectUnauthorized: false});

// example origin & manifestProxyHost (localhost)
const origin = `https://localhost:19450`;
const manifestProxyHost = `https://localhost:19451`;

const colorScheme = 'light';
const defaultIcon = 'https://localhost:19451/default-icon.png'
const size = 192;

const manifestClient = new WebAppManifestClient({agent, manifestProxyHost});
const result = await manifestClient.getManifestWithIcon({
  colorScheme, defaultIcon, origin, size
});

Test Suite

# mocha tests
npm run test

# karma tests
npm run test-karma