Created
November 21, 2018 18:14
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Common GraphQL HOC to handle Common Error and Loading state and its component
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import React from 'react'; | |
import { graphql, compose } from 'react-apollo'; | |
// Common Loading Component | |
import LoadingComponent from './../components/Loader'; | |
// Common Error Component | |
import ErrorComponent from './../components/ErrorComponent'; | |
const withCommonQueries = ({ queries }) => SuccessComponent => { | |
const CommonQueryComponent = props => { | |
try { | |
if (queries.length === 1) { | |
const { | |
data: { loading, error }, | |
} = props; | |
if (loading) return <LoadingComponent />; | |
else if (error) return <ErrorComponent />; | |
return <SuccessComponent {...props.data} />; | |
} else { | |
const propNames = queries.map(({ name }) => name).map(key => props[key]); | |
const loading = propNames.some(item => item.loading); | |
const error = propNames.some(item => item.error); | |
if (loading) return <LoadingComponent />; | |
else if (error) return <ErrorComponent />; | |
return <SuccessComponent {...props} />; | |
} | |
} catch (err) { | |
//eslint-disable-next-line | |
console.log(err, 'Error on QueryCOmponent'); | |
return <ErrorComponent msg="Specify Name for all the Quries" />; | |
} | |
}; | |
return class EnhancedCommonComponent extends React.PureComponent { | |
render() { | |
const graphqlQuries = []; | |
queries.forEach(({ query, options, name }) => { | |
let queryOptions = options; | |
if (typeof options === 'function') { | |
queryOptions = options(this.props); | |
} | |
graphqlQuries.push(graphql(query, { name, options: queryOptions, errorPolicy: 'all' })); | |
}); | |
const Query = compose(...graphqlQuries)(CommonQueryComponent); | |
return <Query />; | |
} | |
}; | |
}; | |
export default withCommonQueries; |
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