npm package: @nftoolkit/agenda-rest
Description: Scheduling as a Service
Author: Keyvan Mir Mohammad Sadeghi
Latest version: 1.0.3

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# agenda-rest

Scheduling as a Service, based on [Agenda](https://github.com/agenda/agenda)

Assuming all job types could be thought of as REST endpoints, scheduling could be offered as a service. `agenda-rest` does just that, introduce a URL, name it, agenda-rest will call it on the times that you specify.

## Installation

Install agenda-rest as a global package

```bash
npm install -g agenda-rest
```

## Usage

To launch the agenda-rest server, use the command line interface specifying the database host name and the database name

```bash
agenda-rest --dbhost localhost --dbname agenda
```

## Command Line Interface options

| Options                     | Description                                                                                                             |
| --------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
| **`-d, --dbname`**          | [optional] Name of the Mongo database, default is **agenda**                                                            |
| **`-h, --dbhost`**          | [optional] Mongo instance's IP or domain name, default is **localhost**                                                 |
| **`-u, --dburi`**           | [optional] Full Mongo connection string. If specified, will override **--dbhost**, **--dbname**                         |
| **`-p, --port`**            | [optional] agenda-rest server port, default is **4040**                                                                 |
| **`-k, --key`**             | [optional] x-api-key to be expected in headers. If not specified, access to agenda-rest server would be unauthenticated |
| **`-t, --timeout`**         | [optional] Timeout for request duration, default is **5000 ms**                                                         |
| **`-a, --agenda_settings`** | [optional] A JSON string containing additional agenda settings. For example '{ "processEvery": "30 seconds" }'          |

## APIs

## API Documentation

API Documentation (Postman Generated) available at https://explore.postman.com/templates/4883/agenda-rest

### **GET `/api/job`**

Get a list of defined jobs

- Method: GET

### **POST `/api/job`**

Defines a new category of jobs

- Method: POST
- Data:

```javascript
{
    name,           // New job type's name
    url,            // koa-router style url
    method,         // (optional) Request type, default: POST
    callback: {     // (optional) to call with response after invocation
        url,
        method,
        headers
    }
}
```

### **PUT `/api/job/:jobName`**

Updates definition of a job category

- Method: PUT
- Data: same as POST `/api/job`

### **DELETE `/api/job/:jobName`**

Deletes job definition and cancels occurrences

- Method: DELETE

### **POST `/api/job/once`** & **POST `/api/job/every`**

Schedule a job for single or multiple occurrences

- Method: POST
- Data:

```javascript
{
    name,           // Name of the type to create the instance from
    interval,       // Interval in which job should be invoked (human-interval, can also be a date string for 'once')
    data: {         // (optional) default: {}
        headers,    // Http headers, e.g. { Authorization: '<token>' }
        params,     // An object i.e. { param1: 'value1' } used to replace path parameters `http://mydommain.com:3333/test/:param1` => `http://mydommain.com:3333/test/value1` notations in the job definition's url.
        query,      // An object i.e. { foo: 'bar', baz: 'qux' } used to create query parameters (http://mydommain.com:3333/test/value1?foo=bar&baz=qux)
        body        // Accompanying data sent along the request
    },
    options: { // (optional) Enables passing options to the `every` method in agenda as documented [here](https://github.com/agenda/agenda#repeateveryinterval-options)
      timezone, // Specify the job execution timezone.
      skipImmediate // Don't execute job immidiatly default is `false`.
    }
}
```

Callback, if present, would be invoked by the following object:

```javascript
{
    data: {
        // passed data object, same as above
    },
    response        // response from invocation
}
```

### **POST `/api/job/now`**

Like `once` and `every`, though without `interval`. Executes the job now.

### **POST `/api/job/cancel`**

Cancels (not to be confused with 'delete') any jobs matching the query

- Method: POST
- Data: Mongo query

```javascript
{
  name: "foo"
}
```