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Merge pull request #241 from meseta/master
Add Google Datastore sorage handler
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commit
80a2b6f0dd
2 changed files with 105 additions and 2 deletions
18
README.md
18
README.md
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@ -198,6 +198,22 @@ Also, you must create an `uploads` table, which will store all the data for uplo
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You can optionally add the `user` and `password` properties to use a user system.
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You can optionally add the `user` and `password` properties to use a user system.
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### Google Datastore
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To use the Google Datastore storage system, you must install the `@google-cloud/datastore` package via npm
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`npm install @google-cloud/datastore`
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Once you've done that, your config section should look like this:
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``` json
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{
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"type": "google-datastore"
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}
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```
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Authentication is handled automatically by [Google Cloud service account credentials](https://cloud.google.com/docs/authentication/getting-started), by providing authentication details to the GOOGLE_APPLICATION_CREDENTIALS environmental variable.
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### Amazon S3
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### Amazon S3
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To use [Amazon S3](https://aws.amazon.com/s3/) as a storage system, you must
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To use [Amazon S3](https://aws.amazon.com/s3/) as a storage system, you must
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@ -316,8 +332,6 @@ Here is a list of all the environment variables
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| RATELIMITS_BLACKLIST_EVERY_SECONDS | | By default client names in the blacklist will be subject to 0 requests per hours |
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| RATELIMITS_BLACKLIST_EVERY_SECONDS | | By default client names in the blacklist will be subject to 0 requests per hours |
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| RATELIMITS_BLACKLIST | example1.blacklist,example2.blacklist | Comma separated list of the clients which are in the blacklistpool. |
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| RATELIMITS_BLACKLIST | example1.blacklist,example2.blacklist | Comma separated list of the clients which are in the blacklistpool. |
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## Author
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## Author
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John Crepezzi <john.crepezzi@gmail.com>
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John Crepezzi <john.crepezzi@gmail.com>
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89
lib/document_stores/google-datastore.js
Normal file
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lib/document_stores/google-datastore.js
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/*global require,module,process*/
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const Datastore = require('@google-cloud/datastore');
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const winston = require('winston');
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class GoogleDatastoreDocumentStore {
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// Create a new store with options
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constructor(options) {
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this.kind = "Haste";
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this.expire = options.expire;
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this.datastore = new Datastore();
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}
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// Save file in a key
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set(key, data, callback, skipExpire) {
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var expireTime = (skipExpire || this.expire === undefined) ? null : new Date(Date.now() + this.expire * 1000);
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var taskKey = this.datastore.key([this.kind, key])
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var task = {
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key: taskKey,
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data: [
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{
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name: 'value',
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value: data,
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excludeFromIndexes: true
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},
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{
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name: 'expiration',
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value: expireTime
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}
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]
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};
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this.datastore.insert(task).then(() => {
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callback(true);
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})
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.catch(err => {
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callback(false);
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});
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}
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// Get a file from a key
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get(key, callback, skipExpire) {
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var taskKey = this.datastore.key([this.kind, key])
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this.datastore.get(taskKey).then((entity) => {
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if (skipExpire || entity[0]["expiration"] == null) {
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callback(entity[0]["value"]);
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}
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else {
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// check for expiry
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if (entity[0]["expiration"] < new Date()) {
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winston.info("document expired", {key: key, expiration: entity[0]["expiration"], check: new Date(null)});
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callback(false);
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}
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else {
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// update expiry
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var task = {
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key: taskKey,
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data: [
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{
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name: 'value',
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value: entity[0]["value"],
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excludeFromIndexes: true
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},
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{
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name: 'expiration',
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value: new Date(Date.now() + this.expire * 1000)
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}
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]
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};
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this.datastore.update(task).then(() => {
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})
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.catch(err => {
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winston.error("failed to update expiration", {error: err});
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});
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callback(entity[0]["value"]);
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}
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}
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})
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.catch(err => {
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winston.error("Error retrieving value from Google Datastore", {error: err});
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callback(false);
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});
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}
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}
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module.exports = GoogleDatastoreDocumentStore;
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