ServiceNow REST API

Node.JS wrapper library for ServiceNow REST API.

Missing a feature? Raise a github issue here

Updates

v1.2.2

New method to fetch change tasks
Bumped axios version

Installing
Basic Usage
- Request
- Response
Supported REST API calls
Functions
Examples
License
Version

Installing

Run npm install servicenow-rest-api to install the package.

Basic Usage

Request

Get reference to servicenow package.
Initialize servicenow object.
Call authenticate function.
You can now access Servicenow data by calling functions.

const sn=require('servicenow-rest-api');

const ServiceNow=new sn('_INSTANCE','_USERID','_PASSWORD');

ServiceNow.Authenticate();

ServiceNow.getSampleData('change_request',(res)=>{    // 
    console.log(res);
});

Proxy Settings

const sn=require('servicenow-rest-api');

const ServiceNow=new sn('_INSTANCE','_USERID','_PASSWORD');

const HttpsProxyAgent = require('https-proxy-agent');

// Your Proxy details
let agent = new HttpsProxyAgent({host: "123.252.137.238", port: "54107"});

// Call this method before Authenticate
ServiceNow.setNetworkOptions({
    httpsAgent: agent
})

ServiceNow.Authenticate();

ServiceNow.getSampleData('change_request',(res)=>{    // 
    console.log(res);
});

Response

[ { parent: '',
    reason: '',
    made_sla: 'false',
    backout_plan: 'Current prod environment to be snapshotted with VmWare\n            prior to change.\n        ',
    watch_list: '',
    upon_reject: '',
    sys_updated_on: '2017-08-10 12:42:23',
    type: 'normal',
    conflict_status: '',
    approval_history: '',
    number: 'CHG0000001',
    test_plan: 'Multi-User testing on Sunday night',
    cab_delegate: '',
    sys_updated_by: 'admin',
    .
    .
    .

Supported REST API calls

In this package, wrappers are available for below REST interfaces.

API	GET	POST	PUT	DELETE
Table API	/now/v2/table/{tableName}	now/v2/table/{tableName}	now/v2/table/{tableName}/{sys_id}	now/v2/table/{tableName}/{sys_id}
	/now/v2/table/{tableName}/{sys_id}
Attachment API	/now/attachment/{sys_id}
	/now/attachment/{sys_id}/file

Functions

1. ServiceNow.Authenticate

If you need to set custom network options, call this method before Authenticate.

Parameters
Callback function

Request

ServiceNow.Authenticate(res=>{
    console.log(res.status);
});

Response

res.status

For complete response use res.raw

{ status: 200,
  statusText: 'OK',
  headers:
   { 'set-cookie':
      [_cookieinfo],
     'x-is-logged-in': 'true',
     'x-total-count': '1',
     pragma: 'no-store,no-cache',
     'cache-control': 'no-cache,no-store,must-revalidate,max-age=-1',
     expires: '0',
     'content-type': 'application/json;charset=UTF-8',
     'transfer-encoding': 'chunked',
     .
     .
     .

2. ServiceNow.getSampleData

This function can be used as a reference to get sample data for tables in ServiceNow. This can be used to check the fields in a table.

Parameters	Description
type	Table type in ServiceNow (incident,change_request)
Callback function	Response will be available as a parameter to callback function

Request

ServiceNow.getSampleData('change_request',(res)=>{
    console.log(res);
});

Response

[ { parent: '',
    made_sla: 'false',
    caused_by: '',
    watch_list: '',
    upon_reject: '',
    sys_updated_on: '2017-08-10 20:16:07',
    child_incidents: '',
    hold_reason: '',
    approval_history: '',
    number: 'INC0000001',

3. ServiceNow.getTableData

Access ServiceNow table data using this function.

Parameters	Description
fields	Fields that you want from ServiceNow table. Pass an empty array if you want to get all the fields
filters	Filters that has to be applied on ServiceNow table. Pass an empty array if filters are not required.
type	type of table - incident, change_request
callback function	Response will be available as a parameter to this function

Request

const fields=[
    'number',
    'short_description',
    'assignment_group',
    'priority'
];

const filters=[
    'urgency=1'
];

ServiceNow.getTableData(fields,filters,'incident',function(res){
    console.log(res);
});

Response

https://devserver.service-now.com/api/now/v2/table/incident?sysparm_display_value=true&sysparm_fields=number,short_description,assignment_group,p
riority&sysparm_query=urgency=1
[ { number: 'INC0000025',
    short_description: 'Need to add more memory to laptop',
    assignment_group: '',
    priority: '1 - Critical' },
  { number: 'INC0000016',
    short_description: 'Rain is leaking on main DNS Server',
    assignment_group:
     { display_value: 'Hardware',
       link: 'https://dev16219.service-now.com/api/now/v2/table/sys_user_group/8a5055c9c61122780043563ef53438e3' },
    priority: '1 - Critical' },
    .
    .
    .

4. ServiceNow.getSysId

Used as a reference to get sys_id of a record in ServiceNow.

Parameters	Description
type	type of table - incident, change_request
number	Ticket number in ServiceNow
callback function	Response will be available as a parameter to this function

Request

ServiceNow.getSysId('incident','INC0000016',res=>{
    console.log(res);
});

Response

46e3e949a9fe19810069b824ba2c761a

5. ServiceNow.createNewTask

This is used to create a new task in ServiceNow.

Parameters	Description
data	Object that contains data for your record
type	type of table - incident, change_request
callback function	Response will be available as a parameter to this function

Request

const data={
    'short_description':'Need urgent attention!!',
    'urgency':'1',
    'priority':'1',
    'assignment_group':'Hardware'
};

ServiceNow.createNewTask(data,'incident',res=>{
    console.log(res);
});

Response

{ parent: '',
  made_sla: 'true',
  caused_by: '',
  watch_list: '',
  upon_reject: 'Cancel all future Tasks',
  sys_updated_on: '2017-10-30 22:24:30',
  child_incidents: '0',
  hold_reason: '',
  approval_history: '',
  number: 'INC0010006',
  resolved_by: '',
  sys_updated_by: 'admin',
  .
  .
  .

6. ServiceNow.UpdateTask

This is used to update existing record in ServiceNow.

Parameters	Description
type	type of table - incident, change_request
number	Ticket number in ServiceNow
data	Object that contains data for your record
callback function	Response will be available as a parameter to this function

Request

const data={
    'work_notes':'Assigning this to different team',
    'assignment_group':'Network'
};

ServiceNow.UpdateTask('incident','INC0010006',data,res=>{
    console.log(res);
});

Response

{ parent: '',
  made_sla: 'true',
  caused_by: '',
  watch_list: '',
  upon_reject: 'Cancel all future Tasks',
  sys_updated_on: '2017-10-30 22:31:49',
  child_incidents: '0',
  hold_reason: '',
  approval_history: '',
  number: 'INC0010006',
  .
  .
  .
  work_notes: '2017-10-30 22:31:49 - System Administrator (Work notes)\nAssigning this to different team\n\n',
  short_description: 'Need urgent attention!!',
  close_code: null,
  correlation_display: '',
  delivery_task: '',
  work_start: '',
  assignment_group:
   { display_value: 'Network',
   .
   .
   .

7. ServiceNow.DeleteTask

To delete an existing record in ServiceNow table.

Parameters	Description
type	type of table - incident, change_request
number	Ticket number in ServiceNow
callback function	Response will be available as a parameter to this function

Request

ServiceNow.DeleteTask('incident','INC0010006',res=>{
    console.log(res.status);
});

Response

8. ServiceNow.setNetworkOptions

To set custom network options like proxy.

Call this method before ServiceNow.Authenticate

Parameters	Description
options	network options

Request

ServiceNow.setNetworkOptions({
    httpsAgent: agent
})

9. ServiceNow.getAttachmentMetaData

This is used to get metadata of attachments

Parameters	Description
sys_id	`sys_id` of file
callback function	Response will be available as a parameter to this function

Request

ServiceNow.getAttachmentMetaData('0254de0c4f889200086eeed18110c74c', (res => console.log(res)));

Response

{
  size_bytes: '9753',
  file_name: 'picture',
  sys_mod_count: '1',
  average_image_color: '',
  image_width: '',
  sys_updated_on: '2021-01-12 15:50:49',
  sys_tags: '',
  table_name: 'ZZ_YYpc_hardware_cat_item',
  sys_id: '0254de0c4f889200086eeed18110c74c',
  image_height: '',
  sys_updated_by: 'admin',
  download_link: 'https://dev99226.service-now.com/api/now/attachment/0254de0c4f889200086eeed18110c74c/file',
  content_type: 'image/png',
  sys_created_on: '2015-11-26 00:28:31',
  size_compressed: '9369',
  compressed: 'true',
  state: 'available',
  table_sys_id: 'ba5b8f9d182a1d001017ed13c02bcc29',
  chunk_size_bytes: '',
  hash: '',
  sys_created_by: 'mnewton'
}

10. ServiceNow.getAttachment

This is used to download attachment. Response contains headers and binary data of attachment. Refer this example on how to use these fields to download attachment.

Parameters	Description
sys_id	`sys_id` of file
callback function	Response will be available as a parameter to this function

Request

ServiceNow.getAttachment('bae385672f6120102fefd5f62799b668', (result => {console.log(result)}))

Response

{
  status: 200,
  statusText: 'OK',
  headers: {
    'set-cookie': [
      'JSESSIONID=5F1455AB65A01DF31C91E5DD6D26E71F; Path=/; HttpOnly;Secure',
      'glide_user=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure',
      'glide_user_session=; Max-Age=0; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; HttpOnly;Secure',
      'glide_user_route=glide.01101b80d2b7bd3808ce2bf759d058b7; Max-Age=2147483647; Expires=Sun, 30-Jan-2089 22:05:11 GMT; Path=/; HttpOnly;Secure',
      'glide_session_store=401481E32F6120102FEFD5F62799B6F1; Max-Age=1800; Expires=Tue, 12-Jan-2021 19:21:04 GMT; Path=/; HttpOnly;Secure',
      'BIGipServerpool_dev99226=2659473418.45632.0000; path=/; Httponly; Secure'
    ],
    'x-is-logged-in': 'true',
    'x-transaction-id': '841481e32f61',
    'content-disposition': 'attachment;filename=picture',
    'x-attachment-metadata': '{  "size_bytes" : "9753",  "file_name" : "picture",  "sys_mod_count" : "1",  "average_image_color" : "",  "image_width" : "",  "sys_updated_on" : "2021-01-12 15:50:49",  "sys_tags" : "",  "table_name" : "ZZ_YYpc_hardware_cat_item",  "sys_id" : "0254de0c4f889200086eeed18110c74c",  "image_height" : 
"",  "sys_updated_by" : "admin",  "content_type" : "image/png",  "sys_created_on" : "2015-11-26 00:28:31",  "size_compressed" : "9369",  "compressed" : "true",  "state" : "available",  "table_sys_id" : "ba5b8f9d182a1d001017ed13c02bcc29",  "chunk_size_bytes" : "",  "hash" : "",  "sys_created_by" : "mnewton"}',
    'content-type': 'image/png;charset=UTF-8',
    'transfer-encoding': 'chunked',
    date: 'Tue, 12 Jan 2021 18:51:04 GMT',
    server: 'ServiceNow',
    connection: 'close',
    'strict-transport-security': 'max-age=63072000; includeSubDomains'
  },
  .
  .
  .
  data: '�PNG\r\n' +
    '\u001a\n' +
    '\u0000\u0000\u0000\rIHDR\u0000\u0000\u0001�\u0000\u0000\u0001,\b\u0003\u0000\u0000\u0000�i\u0015�\u0000\u0000\u0000\u0003sBIT\b\b\b��O�\u0000\u0000\u0001�PLTE���������������������������������Ľ������������������������������������}��������������w�����������w~⌂��~m�~e�z��

11. ServiceNow.getAllAttachmentsMetaData

This is used to get metadata of all attachments of a specific table

Parameters	Description
table_sys_id	`table_sys_id` of table
callback function	Response will be available as a parameter to this function

Request

ServiceNow.getAllAttachmentsMetaData('a83820b58f723300e7e16c7827bdeed2', (res) => {
    console.log(res);
})

Response

[
  {
    size_bytes: '23',
    file_name: 'test123.txt',
    sys_mod_count: '1',
    average_image_color: '',
    image_width: '',
    sys_updated_on: '2021-01-19 14:12:02',
    sys_tags: '',
    table_name: 'incident',
    sys_id: '1857c8f12f3120102fefd5f62799b6cb',
    image_height: '',
    sys_updated_by: 'system',
    download_link: 'https://dev99226.service-now.com/api/now/attachment/1857c8f12f3120102fefd5f62799b6cb/file',
    ...
  },
  {
    ...
    table_name: 'incident',
    sys_id: 'bae385672f6120102fefd5f62799b668',
    image_height: '',
    sys_updated_by: 'system',
    download_link: 'https://dev99226.service-now.com/api/now/attachment/bae385672f6120102fefd5f62799b668/file',
    content_type: 'text/plain',
    sys_created_on: '2021-01-12 18:50:25',
    size_compressed: '37',
    compressed: 'true',
    state: 'available',
    table_sys_id: 'a83820b58f723300e7e16c7827bdeed2',
    chunk_size_bytes: '700000',
    hash: '5881707e54b0112f901bc83a1ffbacac8fab74ea46a6f706a3efc5f7d4c1c625',
    sys_created_by: 'admin'
  }
]

12. ServiceNow.getChangeTasks

This is used to get change tasks from a change request in ServiceNow. (#12-getchangetasks)

Parameters	Description
type	type of table - change_task
changeNumber	Change request number
callback function	Response will be available as a parameter to this function

Request

ServiceNow.getChangeTasks('change_task', 'CHG0000001', (res) =>
    console.log(res)
);

Response

{ number: 'CTASK0010006',
  sys_id: '0254de0c4f889200086eeed18110c74c'
  .
  .

Examples

1. Get critical incidents which are open for last 6 months.

Request

const sn = require('servicenow-rest-api');
const ServiceNow = new sn('devserver','admin','password');

ServiceNow.Authenticate();

const fields =[
    'number',
    'short_description',
    'assignment_group',
    'assigned_to'
];

const filters=[
    'priority=1',
    'state=In Progress',
    'opened_atONLast 6 months@javascript:gs.beginningOfLast6Months()@javascript:gs.endOfLast6Months()' //Opened on last 6 months
];

ServiceNow.getTableData(fields,filters,'incident',res=>{
    console.log(res);
});

Response

[ { number: 'INC0000003',
    short_description: 'Wireless access is down in my area',
    assignment_group:
     { display_value: 'Network',
       link: 'https://devserver.service-now.com/api/now/v2/table/sys_user_group/287ebd7da9fe198100f92cc8d1d2154e' },
    assigned_to:
     { display_value: 'Beth Anglin',
       link: 'https://devserver.service-now.com/api/now/v2/table/sys_user/46d44a23a9fe19810012d100cca80666' } },
  { number: 'INC0000050',
    short_description: 'Can\'t access Exchange server - is it down?',
    assignment_group:
     { display_value: 'Hardware',
       link: 'https://devserver.service-now.com/api/now/v2/table/sys_user_group/8a5055c9c61122780043563ef53438e3' },
       .
       .
       .

2. Create an Emergency change to reboot server

Request

const sn = require('servicenow-rest-api');
const ServiceNow = new sn('devserver','admin','password');

ServiceNow.Authenticate();

const changeData={
    'short_description':'Reboot Server',
    'priority':'1',
    'risk':'High',
    'type':'Emergency',
    'assignment_group':'Hardware'
};
     

ServiceNow.createNewTask(changeData,'change_request',res=>{
    console.log(res);
});

Response

{ parent: '',
  reason: null,
  made_sla: 'true',
  backout_plan: '',
  watch_list: '',
  upon_reject: 'Cancel all future Tasks',
  sys_updated_on: '2017-11-03 07:37:23',
  type: 'Emergency',
  conflict_status: 'Not Run',
  approval_history: '',
  number: 'CHG0030003',
  .
  .
  .
  short_description: 'Reboot Server',
  close_code: null,
  correlation_display: '',
  delivery_task: '',
  work_start: '',
  assignment_group:
   { display_value: 'Hardware',
   .
   .
   .

3. Elevate priority of ticket

Request

const sn = require('servicenow-rest-api');
const ServiceNow = new sn('devserver','admin','password');

ServiceNow.Authenticate();

const incidentData={
    'work_notes':'Elevating priority of ticket as per business request',
    'urgency':'1',
    'impact':'1'
};
     
ServiceNow.UpdateTask('incident','INC0010007',incidentData,res=>{
    console.log(res);
});

Response

{ parent: '',
  made_sla: 'true',
  caused_by: '',
  watch_list: '',
  upon_reject: 'Cancel all future Tasks',
  sys_updated_on: '2017-11-03 08:25:17',
  child_incidents: '0',
  hold_reason: '',
  approval_history: '',
  number: 'INC0010007',
  .
  .
  .
  impact: '1 - High',
  active: 'true',
  work_notes_list: '',
  business_service: '',
  priority: '1 - Critical',
  .
  .
  .
   work_notes: '2017-11-03 08:25:17 - System Administrator (Work notes)\nElevating priority of ticket as per business request\n',
  short_description: 'Cannot connect to internet',

4. Set Custom Proxy

Request

const sn = require('servicenow-rest-api');
const ServiceNow = new sn('devserver','admin','password');
const HttpsProxyAgent = require('https-proxy-agent');

let agent = new HttpsProxyAgent({host: "123.252.137.238", port: "54107"});

ServiceNow.setNetworkOptions({
    httpsAgent: agent
})

ServiceNow.Authenticate();

5. Download Attachment

Request

This example uses express server

const express = require('express');
const app = express();
const sn = require('servicenow-rest-api');
const ServiceNow = new sn('devserver','admin','password');

app.listen(3000);

ServiceNow.Authenticate();

app.get('/', (req, res) => {
    ServiceNow.getAttachment('bae385672f6120102fefd5f62799b668', (result => {
        if(result['headers']){
            if(result['headers']['content-disposition']){
                res.setHeader('content-disposition', result['headers']['content-disposition'])
            }
            if(result['headers']['content-type']){
                res.setHeader('content-type', result['headers']['content-type'])
            }
            if(result['headers']['x-attachment-metadata']){
                res.setHeader('x-attachment-metadata', result['headers']['x-attachment-metadata'])
            }
        }
        res.send(result.data);
    }));
})

Response

File can be downloaded when you visit url, in this example, http://localhost:3000/

License

This project is licensed under the MIT License - see the LICENSE file for details

Version

1.2.1

chaitanyakaranam / servicenow-rest-api Goto Github PK