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Build data APIs using the middleware concept.
npm install keydb
By default, KeyDB is a middleware stack that does nothing. At a minimum, you must provide it with a data source. A data source is just a function that returns data.
var keydb = require('keydb');
var db = keydb();
db.source(function (msg) {
return msg;
});
db("Hello, World!").then(function (msg) {
console.log(msg);
});
The above database will simply echo the message sent to it. That's not very useful. To do something more useful, use the included drivers.
var keydb = require('keydb');
var db = keydb();
db.driver(keydb.drivers.upsert);
db.driver(keydb.drivers.mysql, {
database: 'test',
tables: {
user: {
properties: {
user_id: {
type: 'string',
maxLength: 100
},
first_name: {
type: 'string',
maxLength: 100
},
last_name: {
type: 'string',
maxLength: 100
}
},
primaryKey: 'user_id'
}
}
});
db({
op: 'upsert',
attributes: {
user_id: 'joe', first_name: 'Joe', last_name: 'Foo'
},
filters: {user_id: 'joe'}
})
.then(function () {
return db({op: 'query', filters: {user_id: 'joe'}});
})
.then(function (msg) {
console.log(msg.items);
})
In the above example, an upsert driver is stacked on top of a mysql driver so that upsert semantics can be added to mysql without the underlying driver actually supporting upsert.
Some drivers are preconfigured stacks, and these can be easily created by their IDs. They may also add sugar methods.
var keydb = require('keydb');
var db = keydb('kv-mysql');
db.set('users/joe', {firstName: 'Joe'})
.then(function () {
return db.get('users/joe');
})
The above is the same as:
var keydb = require('keydb');
var db = keydb('kv-mysql');
db({op: 'set', key: 'users/joe', value: {firstName: 'Joe'}})
.then(function () {
return db({op: 'get', key: 'users/joe'});
})
FAQs
Key/value data/query API to use on the server and in the browser.
We found that keydb demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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