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api-runner-browser.js
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api-runner-browser.js
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const plugins = require(`./api-runner-browser-plugins`)
const {
getResourcesForPathname,
getResourcesForPathnameSync,
getResourceURLsForPathname,
loadPage,
loadPageSync,
} = require(`./loader`).publicLoader
exports.apiRunner = (api, args = {}, defaultReturn, argTransform) => {
// Hooks for gatsby-cypress's API handler
if (process.env.CYPRESS_SUPPORT) {
if (window.___apiHandler) {
window.___apiHandler(api)
} else if (window.___resolvedAPIs) {
window.___resolvedAPIs.push(api)
} else {
window.___resolvedAPIs = [api]
}
}
let results = plugins.map(plugin => {
if (!plugin.plugin[api]) {
return undefined
}
// Deprecated April 2019. Use `loadPageSync` instead
args.getResourcesForPathnameSync = getResourcesForPathnameSync
// Deprecated April 2019. Use `loadPage` instead
args.getResourcesForPathname = getResourcesForPathname
args.getResourceURLsForPathname = getResourceURLsForPathname
args.loadPage = loadPage
args.loadPageSync = loadPageSync
const result = plugin.plugin[api](args, plugin.options)
if (result && argTransform) {
args = argTransform({ args, result, plugin })
}
return result
})
// Filter out undefined results.
results = results.filter(result => typeof result !== `undefined`)
if (results.length > 0) {
return results
} else if (defaultReturn) {
return [defaultReturn]
} else {
return []
}
}
exports.apiRunnerAsync = (api, args, defaultReturn) =>
plugins.reduce(
(previous, next) =>
next.plugin[api]
? previous.then(() => next.plugin[api](args, next.options))
: previous,
Promise.resolve()
)