Published at
Updated at
Reading time
1min

I just found a super smart gist from David Wells that's worth bookmarking.

David uses a JavaScript Proxy to map object properties to fetch calls.

This approach works quite nice for querying RESTful APIs. apiObject.cars() maps to /cars/ and apiObject.cars('123') maps to /cars/123/. 👏

// Found at https://gist.github.com/DavidWells/53518b3c12344952641dc81cc7599939
const createApi = (url) => {
  return new Proxy({}, {
    get(target, key) {
      return async function(id = "") {
        const response = await fetch(`${url}/${key}/${id}`)
        if (response.ok) {
          return response.json();
        }
        return Promise.resolve({ error: "Malformed Request" })
      }
    }
  })
}

let api = createApi("https://swapi.co/api")

// 'get' request to https://swapi.co/api/people
let people = await api.people()

// 'get' request to https://swapi.co/api/people/1
let person = await api.people(1)

What a great little trick! 💯

Was this snippet helpful?
Yes? Cool! You might want to check out Web Weekly for more snippets. The last edition went out 4 days ago.
Stefan standing in the park in front of a green background

About Stefan Judis

Frontend nerd with over ten years of experience, freelance dev, "Today I Learned" blogger, conference speaker, and Open Source maintainer.

Related Topics

Related Articles