axios-rest-resource

Schema-based HTTP client powered by axios. Built with Typescript. Heavily inspired by AngularJS' $resource.

• Installation
• Quick start
• URL token substituion
• Custom resource schema
• In depth

Installation

npm i axios-rest-resource axios

Quick start

• Create resource module in your utils folder

  // utils/resource.ts
  import { ResourceBuilder } from 'axios-rest-resource'
  
  export const resourceBuilder = new ResourceBuilder({
    baseURL: 'http://localhost:3000',
  })

• Using a newly created resource builder create an actual resource

  // api/entity1.js
  import { resourceBuilder } from 'utils/resource'
  
  export const entity1Resource = resourceBuilder.build('/entity1')
  // exports an object
  // {
  //   create: (requestConfig) => axiosPromise // sends POST http://localhost:3000/entity1,
  //   read: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity1,
  //   readOne: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity1/{id},
  //   remove: (requestConfig) => axiosPromise // sends DELETE http://localhost:3000/entity1/{id},
  //   update: (requestConfig) => axiosPromise // sends PUT http://localhost:3000/entity1/{id}
  // }

• Use your resource whenever you want to make an AJAX call

  import { entity1Resource } from 'api/entity1'
  
  const resRead = entity1Resource.read()
  // sends GET http://localhost:3000/entity1
  // resRead is a Promise of data received from the server
  
  const resReadOne = entity1Resource.readOne({ params: { id } })
  // for id = '123'
  // sends GET http://localhost:3000/entity1/123
  // resReadOne is a Promise of data received from the server
  
  const resCreate = entity1Resource.create({ data })
  // for data = { field1: 'test' }
  // sends POST http://localhost:3000/entity1 with body { field1: 'test' }
  // resCreate is a Promise of data received from the server
  
  const resUpdate = entity1Resource.update({ data, params: { id } })
  // for data = { field1: 'test' } and id = '123'
  // sends PUT http://localhost:3000/entity1/123 with body { field1: 'test' }
  // resUpdate is a Promise of data received from the server
  
  const resRemove = entity1Resource.remove({ params: { id } })
  // for id = '123'
  // sends DELETE http://localhost:3000/entity1/123
  // resRemove is a Promise of data received from the server

URL token substituion

axios-rest-resource applies interceptorUrlFormatter interceptor by default. It handles {token} substitution in URLs.

Custom resource schema

• Create resource module in your utils folder

  // utils/resource.ts
  import { ResourceBuilder } from 'axios-rest-resource'
  
  export const resourceBuilder = new ResourceBuilder({
    baseURL: 'http://localhost:3000',
  })

• Using a newly created resource builder create an actual resource

  // api/entity2.js
  import { resourceSchemaDefault } from 'axios-rest-resource'
  import { resourceBuilder } from 'utils/resource'
  
  export const entity2Resource = resourceBuilder.build('/entity2', {
    ...resourceSchemaDefault,
    doSomething: {
      method: 'post',
      url: '/do-something',
    },
  })
  // exports an object
  // {
  //   create: (requestConfig) => axiosPromise // sends POST http://localhost:3000/entity2,
  //   read: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity2,
  //   readOne: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity2/{id},
  //   remove: (requestConfig) => axiosPromise // sends DELETE http://localhost:3000/entity2/{id},
  //   update: (requestConfig) => axiosPromise // sends PUT http://localhost:3000/entity2/{id},
  //   doSomething: (requestConfig) => axiosPromise // sends POST http://localhost:3000/entity2/do-something
  // }

• Use your resource whenever you want to make an AJAX call

  import { entity2Resource } from 'api/entity2'
  
  const resRead = entity2Resource.read()
  // sends GET http://localhost:3000/entity2
  // resRead is a Promise of data received from the server
  
  const resReadOne = entity2Resource.readOne({ params: { id } })
  // for id = '123'
  // sends GET http://localhost:3000/entity2/123
  // resReadOne is a Promise of data received from the server
  
  const resCreate = entity2Resource.create({ data })
  // for data = { field1: 'test' }
  // sends POST http://localhost:3000/entity2 with body { field1: 'test' }
  // resCreate is a Promise of data received from the server
  
  const resUpdate = entity2Resource.update({ data, params: { id } })
  // for data = { field1: 'test' } and id = '123'
  // sends PUT http://localhost:3000/entity2/123 with body { field1: 'test' }
  // resUpdate is a Promise of data received from the server
  
  const resRemove = entity2Resource.remove({ params: { id } })
  // for id = '123'
  // sends DELETE http://localhost:3000/entity2/123
  // resRemove is a Promise of data received from the server
  
  const resDoSomething = entity2Resource.doSomething()
  // sends POST http://localhost:3000/entity2/do-something
  // resDoSomething is a Promise of data received from the server

You custom schema does not need to extend default schema if you do not want that

// api/entity.js
import { resourceBuilder } from 'utils/resource'

export const entityResource = resourceBuilder.build('/entity', {
  doSomething: {
    method: 'post',
    url: '/do-something',
  },
})
// exports an object
// {
//   doSomething: (requestConfig) => axiosPromise // sends POST http://localhost:3000/entity/do-something
// }

Alternatively you can use a partial of a default schema

// api/entity.js
import { resourceSchemaDefault } from 'axios-rest-resource'
import { resourceBuilder } from 'utils/resource'

const { read, readOne } = resourceSchemaDefault

export const entityResource = resourceBuilder.build('/entity', {
  read,
  readOne,
})
// exports an object
// {
//   read: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity,
//   readOne: (requestConfig) => axiosPromise // sends GET http://localhost:3000/entity/{id},
// }

In depth

What does ResourceBuilder do exactly upon creation?

When you call new ResourceBuilder(axiosConfig)

1. If your axiosConfig doesn't have headers.Accept property it sets it to 'application/json'.
2. It creates a new instance of axios passing axiosConfig to axios.create.
3. It adds interceptorUrlFormatter to request interceptors of the newly created instance of axios.
4. It exposes the newly created instance of axios for further modifications at axiosInstance.

Each instance of ResourceBuilder has its own axiosInstance. It's useful if you want to do something more with your axios instance like adding an interceptor.

import { ResourceBuilder } from 'axios-rest-resource'
import axios, { AxiosInstance } from 'axios'

const resourceBuilder = new ResourceBuilder({
  baseURL: 'http://localhost:3000',
})
resourceBuilder.axiosInstance.interceptors.response.use(myCustomResponeInterceptor)

export { resourceBuilder }