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reducer.js
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reducer.js
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import extend from 'object-assign'
const initialState = {
error: null,
isPending: false,
response: null
}
export default function configureApiReducer ({ types } = {}) {
if (typeof types !== 'object') {
throw new Error('Missing `types` array.')
} else if (!types.length || types.length !== 3) {
throw new Error('`types` must be an array of 3 strings')
}
const PENDING_TYPE = types[0]
const SUCCESS_TYPE = types[1]
const FAILURE_TYPE = types[2]
return function apiReducer (state = initialState, { type, payload }) {
switch (type) {
case PENDING_TYPE:
return extend({}, state, {
isPending: true
})
case SUCCESS_TYPE:
return extend({}, state, {
error: null,
isPending: false,
response: payload
})
case FAILURE_TYPE:
return extend({}, state, {
error: payload,
isPending: false
})
default:
return state
}
}
}