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Google Drive Client

Client for making basic Google Drive requests

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About

This library allows for performing basic actions against Google's RESTful Drive API. It supports fetching directory contents, reading files and writing files. Note that file reading & writing is only supported with text files currently. It uses fetch (cross-fetch) to perform requests, which will obviously work in a reproducible fassion across environments.

Usage

Install the client by running the following:

npm install @buttercup/googledrive-client

The latest version (v2) requires an ESM environment to run. It is not available to standard CommonJS projects.

The library exports a factory which can be used to create client adapters. The factory takes a Google Drive OAuth token.

import { GoogleDriveClient } from "@buttercup/googledrive-client";

const client = new GoogleDriveClient(myToken);

client.getDirectoryContents(/* tree: */ true /* (default) */).then(tree => {
    // ...
})

// Or return a flat structure with all files and directories:
client.getDirectoryContents();

Token expiration or invalid credentials

This library uses Layerr to pass extra error information around, such as when authentication fails while making a request. This makes it easier for downstream libraries to handle such authorisation failures, perhaps by requesting a new token.

If an error is thrown, use Layerr to extract the information from it to test if an authorisation failure has occurred:

client.getDirectoryContents().catch(err => {
    const { authFailure = false } = Layerr.info(err);
    // handle authFailure === true
});

Getting directory contents using a path

This library supports fetching directory contents by using a path, for a more traditional field. This method is not recommended for all use cases as it doesn't support items in the same level with the same name. Consider it experimental.

import { GoogleDriveClient } from "@buttercup/googledrive-client";

const client = new GoogleDriveClient(myToken);

client.mapDirectoryContents("/").then(arrayOfFiles => {
    // ...
})

NB: Items are placed in the root if (and only if) their parents are not resolvable. They may have parent IDs specified in the result - if a parent can be found for a file, it is in that items sub-directory, whereas if the parent cannot be found it is in the root.