Mẫu dữ liệu quản lý yêu cầu dịch vụ

This method uses the ServiceNow user interface for filtering and exporting, so there is no single script. The configuration consists of setting filters and choosing columns for multiple list views.

**Configuration for Export 1: Requested Items**
*   **Table**: `sc_req_item`
*   **Filter Conditions**:
    1. `[Created] [on] [Last 6 months]`
    2. `[Active] [is one of] [true, false]` (Or adjust based on process scope)
*   **Columns to Add**: `Number`, `Sys ID`, `Sys Created On`, `Resolved`, `Closed`, `State`, `Stage`, `Assignment group`, `Assigned to`, `Priority`, `Category`, `Made SLA`

**Configuration for Export 2: Approvals**
*   **Table**: `sysapproval_approver`
*   **Filter Conditions**:
    1. `[Source table] [is] [sc_req_item]`
    2. `[Created] [on] [Last 6 months]`
*   **Columns to Add**: `Approving`, `Approving.Number`, `State`, `Sys Created On`, `Sys Updated On`

**Configuration for Export 3: Catalog Tasks**
*   **Table**: `sc_task`
*   **Filter Conditions**:
    1. `[Request Item.Created] [on] [Last 6 months]`
*   **Columns to Add**: `Request Item`, `Request Item.Number`, `Sys Created On`, `Sys Updated On`, `State`, `Assignment group`, `Assigned to`

**Configuration for Export 4: Audit History**
*   **Table**: `sys_audit`
*   **Filter Conditions**:
    1. `[Table name] [is] [sc_req_item]`
    2. `[Created] [on] [Last 6 months]`
    3. `[Field name] [is one of] [state, assignment_group, assigned_to]`
*   **Columns to Add**: `Document key`, `Table name`, `Field name`, `Old value`, `New value`, `Sys Created On`

import requests
import pandas as pd
import datetime

class=class="hl-string">"hl-comment"># --- Configuration ---
SN_INSTANCE = class="hl-string">'https://[your-instance].service-now.com'
SN_USER = class="hl-string">'[your-username]'
SN_PASSWORD = class="hl-string">'[your-password]'

class=class="hl-string">"hl-comment"># Date range for the extraction (YYYY-MM-DD)
start_date = class="hl-string">'[YYYY-MM-DD]'
end_date = class="hl-string">'[YYYY-MM-DD]'

class=class="hl-string">"hl-comment"># --- End Configuration ---

def query_servicenow_table(table, query, fields):
    class="hl-string">"""Queries a ServiceNow table with pagination."""
    all_records = []
    offset = 0
    limit = 1000
    
    headers = {class="hl-string">"Accept": class="hl-string">"application/json"}
    url = fclass="hl-string">"{SN_INSTANCE}/api/now/table/{table}"
    
    while True:
        params = {
            class="hl-string">'sysparm_query': query,
            class="hl-string">'sysparm_fields': class="hl-string">','.join(fields),
            class="hl-string">'sysparm_limit': limit,
            class="hl-string">'sysparm_offset': offset,
            class="hl-string">'sysparm_display_value': class="hl-string">'true',
            class="hl-string">'sysparm_exclude_reference_link': class="hl-string">'true'
        }
        
        print(fclass="hl-string">"Querying {table} with offset {offset}...")
        response = requests.get(url, auth=(SN_USER, SN_PASSWORD), headers=headers, params=params)
        response.raise_for_status() class=class="hl-string">"hl-comment"># Raise an exception for bad status codes
        
        records = response.json().get(class="hl-string">'result', [])
        if not records:
            break
        all_records.extend(records)
        offset += limit
        
    return all_records

def main():
    class="hl-string">"""Main function to extract, transform, and save the event log."""
    all_events = []
    source_system = class="hl-string">'ServiceNow'
    last_data_update = datetime.datetime.now().isoformat()

    class=class="hl-string">"hl-comment"># Define common attributes to fetch for context
    context_fields = [class="hl-string">'number', class="hl-string">'assignment_group', class="hl-string">'assigned_to', class="hl-string">'priority', class="hl-string">'state', class="hl-string">'cat_item.category', class="hl-string">'made_sla']

    class=class="hl-string">"hl-comment"># 1. Service Request Created
    query = fclass="hl-string">'sys_created_on>={start_date} 00:00:00^sys_created_on<={end_date} 23:59:59'
    fields = [class="hl-string">'sys_created_on'] + context_fields
    req_items = query_servicenow_table(class="hl-string">'sc_req_item', query, fields)
    for item in req_items:
        all_events.append({
            class="hl-string">'ServiceRequestID': item[class="hl-string">'number'],
            class="hl-string">'ActivityName': class="hl-string">'Service Request Created',
            class="hl-string">'EventTime': item[class="hl-string">'sys_created_on'],
            class="hl-string">'AssignedTo': item.get(class="hl-string">'assigned_to'),
            class="hl-string">'AssignmentGroup': item.get(class="hl-string">'assignment_group'),
            class="hl-string">'Priority': item.get(class="hl-string">'priority'),
            class="hl-string">'State': item.get(class="hl-string">'state'),
            class="hl-string">'Category': item.get(class="hl-string">'cat_item.category'),
            class="hl-string">'MadeSLA': item.get(class="hl-string">'made_sla')
        })

    class=class="hl-string">"hl-comment"># Get a list of relevant document keys (sys_id of sc_req_item)
    doc_keys_query = fclass="hl-string">'tablename=sc_req_item^sys_created_on>={start_date} 00:00:00^sys_created_on<={end_date} 23:59:59'
    audit_records = query_servicenow_table(class="hl-string">'sys_audit', doc_keys_query, [class="hl-string">'documentkey'])
    relevant_doc_keys = list(set([rec[class="hl-string">'documentkey'] for rec in audit_records]))
    
    class=class="hl-string">"hl-comment"># Query audit and other tables in batches to avoid long URLs
    batch_size = 50
    for i in range(0, len(relevant_doc_keys), batch_size):
        key_batch = relevant_doc_keys[i:i+batch_size]
        key_batch_str = class="hl-string">','.join(key_batch)

        class=class="hl-string">"hl-comment"># 2-14. Activities from sys_audit, sysapproval_approver, sc_task
        class=class="hl-string">"hl-comment"># Fetch sc_req_item details for context
        ritm_context = {ritm[class="hl-string">'sys_id']: ritm for ritm in query_servicenow_table(class="hl-string">'sc_req_item', fclass="hl-string">'sys_idIN{key_batch_str}', [class="hl-string">'sys_id'] + context_fields)}

        class=class="hl-string">"hl-comment"># Activities based on state changes and field updates from sys_audit
        audit_query = fclass="hl-string">'documentkeyIN{key_batch_str}^fieldnameINassignment_group,assigned_to,state'
        audit_log = query_servicenow_table(class="hl-string">'sys_audit', audit_query, [class="hl-string">'documentkey', class="hl-string">'sys_created_on', class="hl-string">'fieldname', class="hl-string">'newvalue', class="hl-string">'oldvalue'])
        for log in audit_log:
            context = ritm_context.get(log[class="hl-string">'documentkey'], {})
            if not context:
                continue

            event = {
                class="hl-string">'ServiceRequestID': context.get(class="hl-string">'number'),
                class="hl-string">'EventTime': log[class="hl-string">'sys_created_on'],
                class="hl-string">'AssignedTo': context.get(class="hl-string">'assigned_to'),
                class="hl-string">'AssignmentGroup': context.get(class="hl-string">'assignment_group'),
                class="hl-string">'Priority': context.get(class="hl-string">'priority'),
                class="hl-string">'State': context.get(class="hl-string">'state'),
                class="hl-string">'Category': context.get(class="hl-string">'cat_item.category'),
                class="hl-string">'MadeSLA': context.get(class="hl-string">'made_sla'),
            }
            activity = None
            class=class="hl-string">"hl-comment"># Map audit entries to activities
            if log[class="hl-string">'fieldname'] == class="hl-string">'assignment_group' and log[class="hl-string">'newvalue']:
                activity = class="hl-string">'Request Assigned to Group'
                event[class="hl-string">'AssignmentGroup'] = log[class="hl-string">'newvalue']
            elif log[class="hl-string">'fieldname'] == class="hl-string">'assigned_to' and log[class="hl-string">'newvalue']:
                activity = class="hl-string">'Request Assigned to Agent'
                event[class="hl-string">'AssignedTo'] = log[class="hl-string">'newvalue']
            elif log[class="hl-string">'fieldname'] == class="hl-string">'state':
                class=class="hl-string">"hl-comment"># Define state mappings, may need customization
                state_map = {
                    class="hl-string">'Awaiting User Info': class="hl-string">'Information Requested from User',
                    class="hl-string">'Resolved': class="hl-string">'Service Request Resolved',
                    class="hl-string">'Closed Complete': class="hl-string">'Service Request Closed',
                    class="hl-string">'Closed Cancelled': class="hl-string">'Request Cancelled'
                }
                if log[class="hl-string">'newvalue'] in state_map:
                    activity = state_map[log[class="hl-string">'newvalue']]
                elif log[class="hl-string">'oldvalue'] == class="hl-string">'Awaiting User Info':
                    activity = class="hl-string">'Information Provided by User'
                elif log[class="hl-string">'oldvalue'] == class="hl-string">'Resolved':
                    activity = class="hl-string">'Request Reopened'
                class=class="hl-string">"hl-comment"># For class="hl-string">'Approval Requested', class="hl-string">'External Vendor Engaged' - more complex logic might be needed
                class=class="hl-string">"hl-comment"># This is a common inference. Adjust if you have a specific state.
                if log[class="hl-string">'newvalue'] == class="hl-string">'Pending Approval':
                     activity = class="hl-string">'Approval Requested'

            if activity:
                event[class="hl-string">'ActivityName'] = activity
                all_events.append(event)

        class=class="hl-string">"hl-comment"># Approval Activities
        approval_query = fclass="hl-string">'sysapprovalIN{key_batch_str}'
        approvals = query_servicenow_table(class="hl-string">'sysapproval_approver', approval_query, [class="hl-string">'sysapproval', class="hl-string">'sys_updated_on', class="hl-string">'state'])
        for appr in approvals:
            context = ritm_context.get(appr[class="hl-string">'sysapproval'], {})
            if not context: continue
            activity = None
            if appr[class="hl-string">'state'] == class="hl-string">'approved':
                activity = class="hl-string">'Request Approved'
            elif appr[class="hl-string">'state'] == class="hl-string">'rejected':
                activity = class="hl-string">'Request Rejected'
            if activity:
                all_events.append({
                    class="hl-string">'ServiceRequestID': context.get(class="hl-string">'number'),
                    class="hl-string">'ActivityName': activity,
                    class="hl-string">'EventTime': appr[class="hl-string">'sys_updated_on'],
                    class="hl-string">'AssignedTo': context.get(class="hl-string">'assigned_to'), class="hl-string">'AssignmentGroup': context.get(class="hl-string">'assignment_group'), class="hl-string">'Priority': context.get(class="hl-string">'priority'), class="hl-string">'State': context.get(class="hl-string">'state'), class="hl-string">'Category': context.get(class="hl-string">'cat_item.category'), class="hl-string">'MadeSLA': context.get(class="hl-string">'made_sla')
                })

        class=class="hl-string">"hl-comment"># Fulfillment Task Creation
        task_query = fclass="hl-string">'request_itemIN{key_batch_str}'
        tasks = query_servicenow_table(class="hl-string">'sc_task', task_query, [class="hl-string">'request_item', class="hl-string">'sys_created_on', class="hl-string">'number'])
        for task in tasks:
            context = ritm_context.get(task[class="hl-string">'request_item'], {})
            if not context: continue
            all_events.append({
                class="hl-string">'ServiceRequestID': context.get(class="hl-string">'number'),
                class="hl-string">'ActivityName': fclass="hl-string">'Fulfillment Task Created - {task["number"]}',
                class="hl-string">'EventTime': task[class="hl-string">'sys_created_on'],
                class="hl-string">'AssignedTo': context.get(class="hl-string">'assigned_to'), class="hl-string">'AssignmentGroup': context.get(class="hl-string">'assignment_group'), class="hl-string">'Priority': context.get(class="hl-string">'priority'), class="hl-string">'State': context.get(class="hl-string">'state'), class="hl-string">'Category': context.get(class="hl-string">'cat_item.category'), class="hl-string">'MadeSLA': context.get(class="hl-string">'made_sla')
            })

    class=class="hl-string">"hl-comment"># Post-processing and saving
    if not all_events:
        print(class="hl-string">"No events found for the given criteria.")
        return

    df = pd.DataFrame(all_events)
    df[class="hl-string">'SourceSystem'] = source_system
    df[class="hl-string">'LastDataUpdate'] = last_data_update
    
    class=class="hl-string">"hl-comment"># Reorder columns to match schema
    final_cols = [class="hl-string">'ServiceRequestID', class="hl-string">'ActivityName', class="hl-string">'EventTime', class="hl-string">'SourceSystem', class="hl-string">'LastDataUpdate', class="hl-string">'AssignedTo', class="hl-string">'AssignmentGroup', class="hl-string">'Priority', class="hl-string">'State', class="hl-string">'Category', class="hl-string">'MadeSLA']
    df = df[final_cols]
    
    df.sort_values(by=[class="hl-string">'ServiceRequestID', class="hl-string">'EventTime'], inplace=True)
    df.to_csv(class="hl-string">'servicenow_servicerequest_eventlog.csv', index=False)
    print(class="hl-string">"Extraction complete. File saved to servicenow_servicerequest_eventlog.csv")

if __name__ == class="hl-string">'__main__':
    main()

const axios = require('axios');
const fs = require('fs');
const { format, writeToStream } = require('@fast-csv/format');

// --- Configuration ---
const SN_INSTANCE = 'https://YOUR_INSTANCE.service-now.com';
const SN_USER = 'YOUR_API_USER';
const SN_PASSWORD = 'YOUR_API_PASSWORD';
const BATCH_SIZE = 1000;

// Define the date range for the extraction
const startDate = '2023-01-01 00:00:00';
const endDate = '2023-12-31 23:59:59';

const auth = { username: SN_USER, password: SN_PASSWORD };

// --- Helper Function for Paginated API Calls ---
async function fetchAllRecords(table, query, fields, processFunction) {
    let offset = 0;
    let hasMore = true;
    let allEvents = [];

    console.log(`Starting fetch for table: ${table}`);

    while (hasMore) {
        try {
            const response = await axios.get(`${SN_INSTANCE}/api/now/table/${table}`, {
                auth,
                params: {
                    sysparm_query: query,
                    sysparm_fields: fields,
                    sysparm_limit: BATCH_SIZE,
                    sysparm_offset: offset,
                    sysparm_display_value: 'true', // Get display values for reference fields
                    sysparm_exclude_reference_link: true
                }
            });

            const records = response.data.result;
            if (records.length > 0) {
                console.log(`Fetched ${records.length} records from ${table} with offset ${offset}`);
                const processedEvents = records.map(processFunction);
                allEvents.push(...processedEvents);
                offset += BATCH_SIZE;
            } else {
                hasMore = false;
            }
        } catch (error) {
            console.error(`Error fetching data from ${table}:`, error.response ? error.response.statusText : error.message);
            hasMore = false; // Stop on error
        }
    }
    return allEvents;
}

// --- Main Extraction Logic ---
async function extractServiceRequestData() {
    let finalEventLog = [];
    const now = new Date().toISOString();

    // 1. Service Request Created
    const createdEvents = await fetchAllRecords(
        'sc_req_item',
        `sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'number,sys_created_on,assigned_to,assignment_group,priority,state,cat_item.category,made_sla',
        (r) => ({
            ServiceRequestID: r.number,
            ActivityName: 'Service Request Created',
            EventTime: r.sys_created_on,
            SourceSystem: 'ServiceNow',
            LastDataUpdate: now,
            AssignedTo: r.assigned_to,
            AssignmentGroup: r.assignment_group,
            Priority: r.priority,
            State: r.state,
            Category: r['cat_item.category'],
            MadeSLA: r.made_sla
        })
    );
    finalEventLog.push(...createdEvents);

    // 2. Approval Requested
    const approvalRequestedEvents = await fetchAllRecords(
        'sysapproval_approver',
        `sysapproval.sys_class_name=sc_req_item^state=requested^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'sysapproval,sys_created_on',
        (r) => ({
            ServiceRequestID: r.sysapproval,
            ActivityName: 'Approval Requested',
            EventTime: r.sys_created_on,
            SourceSystem: 'ServiceNow',
            LastDataUpdate: now,
            AssignedTo: null, AssignmentGroup: null, Priority: null, State: 'Pending Approval', Category: null, MadeSLA: null
        })
    );
    finalEventLog.push(...approvalRequestedEvents);

    // Function to process audit records
    const processAuditRecord = (activityName) => (r) => ({
        ServiceRequestID: r['documentkey.number'],
        ActivityName: activityName,
        EventTime: r.sys_created_on,
        SourceSystem: 'ServiceNow',
        LastDataUpdate: now,
        AssignedTo: activityName === 'Request Assigned to Agent' ? r.newvalue : null,
        AssignmentGroup: activityName === 'Request Assigned to Group' ? r.newvalue : null,
        Priority: null, 
        State: ['Service Request Resolved', 'Service Request Closed', 'Request Cancelled', 'Request Reopened', 'Information Requested from User', 'Information Provided by User'].includes(activityName) ? r.newvalue : null,
        Category: null, 
        MadeSLA: null
    });
    
    // 3. Request Approved
    const approvedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sysapproval_approver^fieldname=state^newvalue=approved^sys_created_on>=${startDate}^sys_created_on<=${endDate}^documentkey.sysapproval.sys_class_name=sc_req_item`,
        'documentkey.sysapproval.number,sys_created_on',
        (r) => ({ ServiceRequestID: r['documentkey.sysapproval.number'], ActivityName: 'Request Approved', EventTime: r.sys_created_on, SourceSystem: 'ServiceNow', LastDataUpdate: now, AssignedTo: null, AssignmentGroup: null, Priority: null, State: 'Approved', Category: null, MadeSLA: null })
    );
    finalEventLog.push(...approvedEvents);

    // 4. Request Assigned to Group
    const assignedGroupEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=assignment_group^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Request Assigned to Group')
    );
    finalEventLog.push(...assignedGroupEvents);

    // 5. Request Assigned to Agent
    const assignedAgentEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=assigned_to^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Request Assigned to Agent')
    );
    finalEventLog.push(...assignedAgentEvents);

    // 6. Fulfillment Task Created
    const taskCreatedEvents = await fetchAllRecords(
        'sc_task',
        `request_item.sys_class_name=sc_req_item^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'request_item.number,sys_created_on',
        (r) => ({ ServiceRequestID: r['request_item.number'], ActivityName: 'Fulfillment Task Created', EventTime: r.sys_created_on, SourceSystem: 'ServiceNow', LastDataUpdate: now, AssignedTo: null, AssignmentGroup: null, Priority: null, State: null, Category: null, MadeSLA: null })
    );
    finalEventLog.push(...taskCreatedEvents);

    // 7. Information Requested from User
    const infoRequestedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^newvalue=Awaiting User Info^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Information Requested from User')
    );
    finalEventLog.push(...infoRequestedEvents);

    // 8. Information Provided by User
    const infoProvidedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^oldvalue=Awaiting User Info^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Information Provided by User')
    );
    finalEventLog.push(...infoProvidedEvents);

    // 9. External Vendor Engaged (Note: requires a specific vendor group name)
    const vendorEngagedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=assignment_group^newvalue=[Your Vendor Assignment Group Name]^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('External Vendor Engaged')
    );
    finalEventLog.push(...vendorEngagedEvents);

    // 10. Request Reopened
    const reopenedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^oldvalue=Resolved^newvalue=Work in Progress^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Request Reopened')
    );
    finalEventLog.push(...reopenedEvents);

    // 11. Service Request Resolved
    const resolvedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^newvalue=Resolved^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Service Request Resolved')
    );
    finalEventLog.push(...resolvedEvents);

    // 12. Service Request Closed
    const closedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^newvalueINClosed Complete,Closed Incomplete,Closed Skipped^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Service Request Closed')
    );
    finalEventLog.push(...closedEvents);

    // 13. Request Rejected
    const rejectedEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sysapproval_approver^fieldname=state^newvalue=rejected^sys_created_on>=${startDate}^sys_created_on<=${endDate}^documentkey.sysapproval.sys_class_name=sc_req_item`,
        'documentkey.sysapproval.number,sys_created_on',
        (r) => ({ ServiceRequestID: r['documentkey.sysapproval.number'], ActivityName: 'Request Rejected', EventTime: r.sys_created_on, SourceSystem: 'ServiceNow', LastDataUpdate: now, AssignedTo: null, AssignmentGroup: null, Priority: null, State: 'Rejected', Category: null, MadeSLA: null })
    );
    finalEventLog.push(...rejectedEvents);

    // 14. Request Cancelled
    const cancelledEvents = await fetchAllRecords(
        'sys_audit',
        `tablename=sc_req_item^fieldname=state^newvalue=Cancelled^sys_created_on>=${startDate}^sys_created_on<=${endDate}`,
        'documentkey.number,sys_created_on,newvalue',
        processAuditRecord('Request Cancelled')
    );
    finalEventLog.push(...cancelledEvents);

    // --- Write to CSV ---
    const csvStream = format({ headers: true });
    const writableStream = fs.createWriteStream('servicenow_event_log.csv');

    writableStream.on('finish', () => {
        console.log('CSV file written successfully.');
    });

    csvStream.pipe(writableStream);
    finalEventLog.sort((a, b) => new Date(a.EventTime) - new Date(b.EventTime)); // Sort events chronologically
    finalEventLog.forEach(row => csvStream.write(row));
    csvStream.end();
}

extractServiceRequestData();