JSON Activity Stream-ish

History

We started writing an activity user stream that used JSON Activity Stream but was bit overly strict for us. We needed things verbs like 'Download' which aren't available in the stream. I wrote this to simplify our actions. It's a VERY simple implementation that produces JSON Activity Stream style JSON output.

To Begin

1. Install it:

  npm install json-activity-streamish --save

1. Require it and use:

  const Activity = require('json-activity-streamish')
   let activity = new Activity();
   // <Set the actor, target and type fields as below>
   // Get JSON object
   console.log(activity.toJSON());
   // Get string representation of JSON object
   console.log(activity.toString());

Notes

You can pass in all data when you create the activity like so:

let activity = new Activity({
  "name": "John Smith has accepted JPG.jpg",
  "actor": {
        "id": "98765",
        "type": "Person",
        "attributedTo": "john.smith@myfakedomain.com",
        "name": "John Smith"
    },
    "target": {
        "id": "123456",
        "type": "Link",
        "href": "http://www.fakedomain.com/image/123456",
        "mediaType": "mime/jpeg",
        "name": "JPG.jpg"
    },
    "type": "Accept",  
});

You can also set fields manually:

let activity = new Activity();
activity.type('Accept')
  .actor({
    "id": "98765",
    "type": "Person",
    "attributedTo": "john.smith@myfakedomain.com",
    "name": "John Smith"
  })
  .target({
    "id": "123456",
    "type": "Link",
    "href": "http://www.fakedomain.com/image/123456",
    "mediaType": "mime/jpeg",
    "name": "JPG.jpg"
  });

Note that name will be generated for you from your type, actor and target if you don't set it explicitly. id will also be auto-populated using the guid module

We've added a meta field so that you can add any extraneous data that doesn't fit into JSON Activity Stream spec as well. It works the same way as all of the other fields you can set.

let activity = new Activity();
activity.meta({
  recipients: ["john.smith@myfakedomain.com", "jane.smith@myfakedomain.com"],
  someOtherField: "someOtherData"
});

You can output to a json object or to a json representation of a string.

// Output to a JSON object
activity.toJSON();

// Out put to a JSON string repesentation
activity.toString();