CapacitorHttp

The Capacitor Http API provides native http support via patching fetch and XMLHttpRequest to use native libraries. It also provides helper methods for native http requests without the use of fetch and XMLHttpRequest. This plugin is bundled with @capacitor/core.

Configuration

By default, the patching of window.fetch and XMLHttpRequest to use native libraries is disabled. If you would like to enable this feature, modify the configuration below in the capacitor.config file.

Prop	Type	Description	Default
enabled	boolean	Enable the patching of fetch and XMLHttpRequest to use native libraries instead.	false

Example Configuration

In capacitor.config.json:

{
  "plugins": {
    "CapacitorHttp": {
      "enabled": true
    }
  }
}

In capacitor.config.ts:

import { CapacitorConfig } from '@capacitor/cli';

const config: CapacitorConfig = {
  plugins: {
    CapacitorHttp: {
      enabled: true,
    },
  },
};

export default config;

Example

import { CapacitorHttp } from '@capacitor/core';

// Example of a GET request
const doGet = () => {
  const options = {
    url: 'https://example.com/my/api',
    headers: { 'X-Fake-Header': 'Fake-Value' },
    params: { size: 'XL' },
  };

  const response: HttpResponse = await CapacitorHttp.get(options);

  // or...
  // const response = await CapacitorHttp.request({ ...options, method: 'GET' })
};

// Example of a POST request. Note: data
// can be passed as a raw JS Object (must be JSON serializable).
// Content-Type is required for body to be sent with POST/PUT/PATCH requests.
const doPost = () => {
  const options = {
    url: 'https://example.com/my/api',
    headers: {
      'Content-Type': 'application/json',
      'X-Fake-Header': 'Fake-Value',
    },
    data: { foo: 'bar' },
  };

  const response: HttpResponse = await CapacitorHttp.post(options);

  // or...
  // const response = await CapacitorHttp.request({ ...options, method: 'POST' })
};

Large File Support

Due to the nature of the bridge, parsing and transferring large amount of data from native to the web can cause issues. Support for downloading and uploading files to the native device is planned to be added to the @capacitor/filesystem plugin in the near future. One way to potentially circumvent the issue of running out of memory in the meantime (specifically on Android) is to edit the AndroidManifest.xml and add android:largeHeap="true" to the application element. Most apps should not need this and should instead focus on reducing their overall memory usage for improved performance. Enabling this also does not guarantee a fixed increase in available memory, because some devices are constrained by their total available memory.

API

• request(...)
• get(...)
• post(...)
• put(...)
• patch(...)
• delete(...)

request(...)

request(options: HttpOptions) => Promise<HttpResponse>

Make a Http Request to a server using native libraries.

Param	Type
options	HttpOptions

---

get(...)

get(options: HttpOptions) => Promise<HttpResponse>

Make a Http GET Request to a server using native libraries.

Param	Type
options	HttpOptions

---

post(...)

post(options: HttpOptions) => Promise<HttpResponse>

Make a Http POST Request to a server using native libraries.

Param	Type
options	HttpOptions

---

put(...)

put(options: HttpOptions) => Promise<HttpResponse>

Make a Http PUT Request to a server using native libraries.

Param	Type
options	HttpOptions

---

patch(...)

patch(options: HttpOptions) => Promise<HttpResponse>

Make a Http PATCH Request to a server using native libraries.

Param	Type
options	HttpOptions

---

delete(...)

delete(options: HttpOptions) => Promise<HttpResponse>

Make a Http DELETE Request to a server using native libraries.

Param	Type
options	HttpOptions

---

Interfaces

HttpOptions

Prop	Type	Description
url	string	The URL to send the request to.
method?	string	The Http Request method to run. (Default is GET)
params?	HttpParams	URL parameters to append to the request.
data?	any	JSON data to send with the request.
headers?	HttpHeaders	Http Request headers to send with the request.
readTimeout?	number	How long to wait to read additional data. Resets each time new data is received.
connectTimeout?	number	How long to wait for the initial connection.
disableRedirects?	boolean	Sets whether automatic Http redirects should be disabled.
webFetchExtra?	RequestInit	Extra arguments for fetch when running on the web.
responseType?	HttpResponseType	Parse the response appropriately before returning it to the client. If the response content-type is json, this value is ignored.
shouldEncodeUrlParams?	boolean	A option to keep the URL unencoded if necessary (already encoded, azure/firebase testing, etc.). (Default is true)

HttpParams

Type	Description
[key: string]: string or string[]	A key/value dictionary of URL parameters to set.

HttpHeaders

Type	Description
[key: string]: string	A key/value dictionary of Http headers.

HttpResponseType

Type	Description
'arraybuffer' or 'blob' or 'json' or 'text' or 'document'	How to parse the Http response before returning it to the client.

HttpResponse

Prop	Type	Description
url	string	The response URL recieved from the Http response.
status	number	The status code received from the Http response.
data	any	Additional data received with the Http response.
headers	HttpHeaders	The headers received from the Http response.