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Handy thin wrapper around the fetch Api
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const _toQueryString = params => | |
`?${Object.entries(params) | |
.map( | |
([key, value]) => | |
`${encodeURIComponent(key)}=${encodeURIComponent(value)}` | |
) | |
.join("&")}`; | |
// EDIT here if you prefer a storage implementation or a store subscription etc. | |
// you could actually also remove the getToken function and directly call it in the header below | |
const methods = { | |
getToken: () => null | |
}; | |
const _makeCancelable = promise => { | |
let hasCanceled = false; | |
const cancelablePromise = () => | |
new Promise((resolve, reject) => { | |
promise().then( | |
val => (hasCanceled ? reject(Error("Request canceled")) : resolve(val)), | |
error => | |
hasCanceled ? reject(Error("Request canceled")) : reject(error) | |
); | |
}); | |
return { | |
cancelablePromise, | |
cancel() { | |
hasCanceled = true; | |
} | |
}; | |
}; | |
const _call = (method, route, params, setAbortMethod, auth) => { | |
// EDIT you can always strip abortcontroller from here if you need different usages | |
// since it can be tricky to handle the cancel function passed to setAbortMethod for specific usage | |
// sadly this is the best I could think of | |
const controller = AbortController ? new AbortController() : null; | |
if (method === "GET" && params) { | |
route += _toQueryString(params); | |
} | |
const url = "https://jsonplaceholder.typicode.com/" + route; | |
const options = { | |
method, | |
headers: { | |
Accept: "application/json", | |
"Content-Type": "application/json", | |
...(auth && methods.getToken() && { Authorization: `Bearer ${methods.getToken()}` }) // EDIT here based on your api | |
}, | |
...(params && method !== "GET" && { body: JSON.stringify(params) }), | |
...(controller && { signal: controller.signal }) | |
}; | |
const currentFetch = () => { | |
return fetch(url, options).then( | |
res => (res.ok ? res.json() : Promise.reject(res)) // ERROR handling highly depends on your api | |
); | |
}; | |
if (controller) { | |
setAbortMethod && setAbortMethod(() => controller.abort()); | |
return currentFetch(); | |
} else { | |
const { cancelablePromise, cancel } = _makeCancelable(currentFetch); | |
setAbortMethod && setAbortMethod(cancel); | |
return cancelablePromise(); | |
} | |
}; | |
["POST", "PUT", "DELETE", "PATCH", "GET"].forEach( | |
el => (methods[el.toLowerCase()] = (...data) => _call(el, ...data)) | |
); | |
export default methods; |
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