Delivery Guy

A simple Fetch API wrapper for HTTP error handling

Version 7

DeliveryGuy 7 is a complete rewrite in TypeScript. It features a new, consistent API and features like support for all HTTP methods and fully automated JSON handling for requests and responses.

Examples

GET

import DeliveryGuy from 'delivery-guy'

const items = await DeliveryGuy.get('/api/items')
console.log(items)

If /api/items would return JSON, DeliveryGuy will automatically parse it into an object with JSON.parse().

POST

import DeliveryGuy from 'delivery-guy'

const response = await DeliveryGuy.post('/api/item', {id: 1, foo: 'bar'})
console.log(response)

The automatic JSON handling works for payloads as well. If DeliveryGuy receives an object as payload it will automatically use JSON.stringify() on the object and set the content type to application/json.

Other HTTP methods

import DeliveryGuy from 'delivery-guy'

await DeliveryGuy.put('/api/item', {id: 1, foo: 'bar'})
await DeliveryGuy.patch('/api/item', {id: 1, foo: 'bar'})
await DeliveryGuy.delete('/api/items')
await DeliveryGuy.head('/api/items')
await DeliveryGuy.options('/api/items')

Options

All Fetch API options are supported.

import DeliveryGuy from 'delivery-guy'

const items = await DeliveryGuy.get('/api/items', { headers: {'user-agent': 'Mozilla 5.0/Foo Bar'} })
console.log(items)

Global options

Global options will be applied to all requests. As as with per-request options, all Fetch API options are supported.

import DeliveryGuy from 'delivery-guy'

DeliveryGuy.addGlobalOption('headers', {'user-agent': 'Mozilla 5.0/Foo Bar'})

Interceptors

You can define global interceptors for requests, responses and errors. Multiple interceptors per type are supported. Callback functions will be injected with the Fetch API input (URLs mostly) and the payload.

import DeliveryGuy from 'delivery-guy'

DeliveryGuy.intercept('request', (url, payload) => {
  console.log(url, payload)
})

DeliveryGuy.intercept('response', (url, payload) => {
  console.log(url, payload)
})

DeliveryGuy.intercept('error', (url, payload) => {
  console.log(url, payload)
})