Sphyre Issuers

Sphyre Issuers is the web-based dashboard designed for organizations to issue, manage, and revoke verifiable credentials. It provides a complete workflow for credential lifecycle management.

Overview

Sphyre Issuers enables organizations to become credential issuers in the SSI ecosystem, managing schemas, templates, and the full issuance workflow.

Technology

Framework: React 18
Language: TypeScript
URL: https://issuers.sphyre.tech

Key Features

Schema management
Template customization
Multi-step issuance
Credential tracking

Key Features

Schema Management

Create custom credential schemas
Define field types and validation rules
Version control for schemas
Import/export schema definitions
Schema library with pre-built templates

Template Customization

Design credential appearance
Custom branding and colors
Logo and image uploads
Preview before publishing
Multiple templates per schema

Credential Issuance

Manual credential creation
Batch issuance from CSV
QR code generation for offers
Credential request approval workflow
Automated issuance rules

Request Management

View incoming credential requests
Review applicant information
Approve or reject with reasons
Automated verification checks
Request history and analytics

Lifecycle Management

Revoke credentials instantly
Set expiration dates
Update credential status
Re-issue credentials
Track credential usage

Analytics & Reporting

Issuance statistics
Usage metrics
Verification tracking
Export reports
Dashboard insights

Application Structure

sphyre-issuers/
├── src/
│   ├── pages/
│   │   ├── Dashboard.js           # Main dashboard
│   │   ├── Schemas.js             # Schema management
│   │   ├── Templates.js           # Template management
│   │   ├── IssueCredential.js     # Issuance workflow
│   │   ├── CredentialRequests.js  # Pending requests
│   │   ├── IssuedCredentials.js   # Credential tracking
│   │   └── Analytics.js           # Statistics
│   ├── components/
│   │   ├── SchemaBuilder.js       # Visual schema editor
│   │   ├── TemplateDesigner.js    # Template customization
│   │   ├── CredentialForm.js      # Dynamic form generator
│   │   ├── RequestCard.js         # Request display
│   │   └── QRGenerator.js         # QR code creation
│   ├── services/
│   │   ├── apiService.js          # API client
│   │   ├── authService.js         # Authentication
│   │   └── storageService.js      # Local storage
│   ├── contexts/
│   │   ├── AuthContext.js         # Auth state
│   │   └── IssuerContext.js       # Issuer data
│   └── utils/
│       ├── validation.js          # Form validation
│       └── formatting.js          # Data formatting
├── public/
│   └── assets/
└── package.json

Core Workflows

1. Schema Creation

Define the structure of credentials you’ll issue. Schema Builder Interface:

interface CredentialSchema {
  id: string;
  name: string;
  version: string;
  description: string;
  fields: FieldDefinition[];
  issuerDid: string;
  createdAt: Date;
}

interface FieldDefinition {
  name: string;
  type: 'string' | 'number' | 'date' | 'boolean' | 'email' | 'url';
  required: boolean;
  description?: string;
  validation?: ValidationRule;
  defaultValue?: any;
}

Example Schema:

{
  "id": "university-degree-v1",
  "name": "University Degree",
  "version": "1.0.0",
  "description": "Academic degree credential",
  "fields": [
    {
      "name": "studentName",
      "type": "string",
      "required": true,
      "description": "Full legal name of graduate"
    },
    {
      "name": "degreeType",
      "type": "string",
      "required": true,
      "validation": {
        "enum": ["Bachelor", "Master", "Doctorate"]
      }
    },
    {
      "name": "fieldOfStudy",
      "type": "string",
      "required": true
    },
    {
      "name": "graduationDate",
      "type": "date",
      "required": true
    },
    {
      "name": "gpa",
      "type": "number",
      "required": false,
      "validation": {
        "min": 0.0,
        "max": 4.0
      }
    }
  ]
}

Schema Builder Component:

const SchemaBuilder = () => {
  const [schema, setSchema] = useState({
    name: '',
    version: '1.0.0',
    fields: []
  });
  
  const addField = () => {
    setSchema({
      ...schema,
      fields: [...schema.fields, {
        name: '',
        type: 'string',
        required: false
      }]
    });
  };
  
  const updateField = (index, updates) => {
    const newFields = [...schema.fields];
    newFields[index] = { ...newFields[index], ...updates };
    setSchema({ ...schema, fields: newFields });
  };
  
  const saveSchema = async () => {
    await apiService.createSchema(schema);
    toast.success('Schema created successfully!');
  };
  
  return (
    <div className="schema-builder">
      <Input
        label="Schema Name"
        value={schema.name}
        onChange={(e) => setSchema({ ...schema, name: e.target.value })}
      />
      
      <div className="fields-section">
        <h3>Fields</h3>
        {schema.fields.map((field, index) => (
          <FieldEditor
            key={index}
            field={field}
            onChange={(updates) => updateField(index, updates)}
          />
        ))}
        <Button onClick={addField}>Add Field</Button>
      </div>
      
      <Button onClick={saveSchema} variant="primary">
        Save Schema
      </Button>
    </div>
  );
};

2. Template Design

Customize the visual appearance of credentials. Template Designer:

const TemplateDesigner = ({ schema }) => {
  const [template, setTemplate] = useState({
    schemaId: schema.id,
    name: '',
    design: {
      backgroundColor: '#1E40AF',
      textColor: '#FFFFFF',
      logo: null,
      layout: 'standard'
    }
  });
  
  const uploadLogo = async (file) => {
    const formData = new FormData();
    formData.append('logo', file);
    
    const response = await apiService.uploadImage(formData);
    setTemplate({
      ...template,
      design: { ...template.design, logo: response.url }
    });
  };
  
  return (
    <div className="template-designer">
      <div className="design-controls">
        <ColorPicker
          label="Background Color"
          value={template.design.backgroundColor}
          onChange={(color) => setTemplate({
            ...template,
            design: { ...template.design, backgroundColor: color }
          })}
        />
        
        <ImageUpload
          label="Organization Logo"
          onUpload={uploadLogo}
        />
        
        <Select
          label="Layout"
          value={template.design.layout}
          options={['standard', 'compact', 'detailed']}
          onChange={(layout) => setTemplate({
            ...template,
            design: { ...template.design, layout }
          })}
        />
      </div>
      
      <div className="preview">
        <CredentialPreview template={template} schema={schema} />
      </div>
    </div>
  );
};

3. Credential Issuance Workflow

Multi-step process for issuing credentials. Issuance Steps:

Select schema and template
Enter credential data
Review information
Issue and sign credential
Generate QR code offer

Implementation:

const IssueCredential = () => {
  const [step, setStep] = useState(1);
  const [selectedSchema, setSelectedSchema] = useState(null);
  const [selectedTemplate, setSelectedTemplate] = useState(null);
  const [credentialData, setCredentialData] = useState({});
  const [recipient, setRecipient] = useState('');
  
  const issueCredential = async () => {
    try {
      // Create credential request
      const request = {
        schemaId: selectedSchema.id,
        templateId: selectedTemplate.id,
        recipientDid: recipient,
        claims: credentialData,
        issuerDid: getIssuerDid()
      };
      
      // Issue via API
      const credential = await apiService.issueCredential(request);
      
      // Generate QR code offer
      const qrCode = await generateQRCode({
        type: 'CredentialOffer',
        credentialId: credential.id,
        issuer: getIssuerDid()
      });
      
      setQRCode(qrCode);
      toast.success('Credential issued successfully!');
      
    } catch (error) {
      toast.error('Failed to issue credential');
      console.error(error);
    }
  };
  
  return (
    <MultiStepWizard currentStep={step}>
      <Step1_SelectSchema onSelect={setSelectedSchema} />
      <Step2_SelectTemplate 
        schema={selectedSchema} 
        onSelect={setSelectedTemplate} 
      />
      <Step3_EnterData 
        schema={selectedSchema}
        onChange={setCredentialData}
        onRecipientChange={setRecipient}
      />
      <Step4_Review 
        data={credentialData}
        recipient={recipient}
        onIssue={issueCredential}
      />
    </MultiStepWizard>
  );
};

4. Request Management

Handle incoming credential requests from users. Request List:

const CredentialRequests = () => {
  const [requests, setRequests] = useState([]);
  const [filter, setFilter] = useState('pending');
  
  useEffect(() => {
    fetchRequests();
  }, [filter]);
  
  const fetchRequests = async () => {
    const data = await apiService.getCredentialRequests(
      getIssuerDid(),
      filter
    );
    setRequests(data);
  };
  
  const approveRequest = async (requestId) => {
    await apiService.approveCredentialRequest(requestId);
    toast.success('Request approved and credential issued!');
    fetchRequests();
  };
  
  const rejectRequest = async (requestId, reason) => {
    await apiService.rejectCredentialRequest(requestId, reason);
    toast.info('Request rejected');
    fetchRequests();
  };
  
  return (
    <div className="requests-page">
      <div className="header">
        <h1>Credential Requests</h1>
        <FilterTabs
          options={['pending', 'approved', 'rejected']}
          selected={filter}
          onChange={setFilter}
        />
      </div>
      
      <div className="requests-list">
        {requests.map(request => (
          <RequestCard
            key={request.id}
            request={request}
            onApprove={() => approveRequest(request.id)}
            onReject={(reason) => rejectRequest(request.id, reason)}
          />
        ))}
      </div>
    </div>
  );
};

Request Card Component:

const RequestCard = ({ request, onApprove, onReject }) => {
  const [showRejectModal, setShowRejectModal] = useState(false);
  
  return (
    <div className="request-card">
      <div className="request-header">
        <h3>{request.schemaName}</h3>
        <Badge status={request.status} />
      </div>
      
      <div className="request-details">
        <InfoRow label="Requester DID" value={truncateDid(request.holderDid)} />
        <InfoRow label="Requested" value={formatDate(request.createdAt)} />
        <InfoRow label="Template" value={request.templateName} />
      </div>
      
      <div className="request-data">
        <h4>Submitted Information</h4>
        {Object.entries(request.claims).map(([key, value]) => (
          <DataField key={key} label={key} value={value} />
        ))}
      </div>
      
      {request.status === 'pending' && (
        <div className="actions">
          <Button onClick={onApprove} variant="success">
            Approve & Issue
          </Button>
          <Button onClick={() => setShowRejectModal(true)} variant="danger">
            Reject
          </Button>
        </div>
      )}
      
      {showRejectModal && (
        <RejectModal
          onConfirm={(reason) => {
            onReject(reason);
            setShowRejectModal(false);
          }}
          onCancel={() => setShowRejectModal(false)}
        />
      )}
    </div>
  );
};

5. Batch Issuance

Issue multiple credentials from CSV file.

const BatchIssuance = () => {
  const [csvData, setCsvData] = useState([]);
  const [progress, setProgress] = useState(0);
  
  const handleFileUpload = (file) => {
    const reader = new FileReader();
    reader.onload = (e) => {
      const csv = parseCSV(e.target.result);
      setCsvData(csv);
    };
    reader.readAsText(file);
  };
  
  const issueBatch = async () => {
    const total = csvData.length;
    
    for (let i = 0; i < csvData.length; i++) {
      const row = csvData[i];
      
      await apiService.issueCredential({
        schemaId: selectedSchema.id,
        templateId: selectedTemplate.id,
        recipientDid: row.did,
        claims: row
      });
      
      setProgress(((i + 1) / total) * 100);
    }
    
    toast.success(`${total} credentials issued successfully!`);
  };
  
  return (
    <div className="batch-issuance">
      <FileUpload
        accept=".csv"
        onUpload={handleFileUpload}
      />
      
      {csvData.length > 0 && (
        <>
          <DataPreview data={csvData.slice(0, 5)} />
          <p>{csvData.length} credentials ready to issue</p>
          <Button onClick={issueBatch}>Issue All</Button>
          {progress > 0 && <ProgressBar value={progress} />}
        </>
      )}
    </div>
  );
};

Credential Tracking

View and manage all issued credentials.

const IssuedCredentials = () => {
  const [credentials, setCredentials] = useState([]);
  const [searchTerm, setSearchTerm] = useState('');
  
  const filteredCredentials = credentials.filter(cred =>
    cred.holderName?.toLowerCase().includes(searchTerm.toLowerCase()) ||
    cred.id.includes(searchTerm)
  );
  
  const revokeCredential = async (credentialId) => {
    if (confirm('Are you sure you want to revoke this credential?')) {
      await apiService.revokeCredential(credentialId);
      toast.success('Credential revoked');
      fetchCredentials();
    }
  };
  
  return (
    <div className="issued-credentials">
      <SearchBar
        value={searchTerm}
        onChange={setSearchTerm}
        placeholder="Search by holder or credential ID"
      />
      
      <Table>
        <thead>
          <tr>
            <th>Credential Type</th>
            <th>Holder</th>
            <th>Issued Date</th>
            <th>Status</th>
            <th>Actions</th>
          </tr>
        </thead>
        <tbody>
          {filteredCredentials.map(cred => (
            <tr key={cred.id}>
              <td>{cred.schemaName}</td>
              <td>{truncateDid(cred.holderDid)}</td>
              <td>{formatDate(cred.issuedAt)}</td>
              <td><Badge status={cred.status} /></td>
              <td>
                <Button size="sm" onClick={() => viewDetails(cred)}>
                  View
                </Button>
                {cred.status === 'active' && (
                  <Button 
                    size="sm" 
                    variant="danger"
                    onClick={() => revokeCredential(cred.id)}
                  >
                    Revoke
                  </Button>
                )}
              </td>
            </tr>
          ))}
        </tbody>
      </Table>
    </div>
  );
};

Analytics Dashboard

Track issuance metrics and statistics.

const Analytics = () => {
  const [stats, setStats] = useState(null);
  const [timeRange, setTimeRange] = useState('30d');
  
  useEffect(() => {
    fetchAnalytics();
  }, [timeRange]);
  
  const fetchAnalytics = async () => {
    const data = await apiService.getAnalytics(getIssuerDid(), timeRange);
    setStats(data);
  };
  
  return (
    <div className="analytics-dashboard">
      <div className="time-range-selector">
        <Button onClick={() => setTimeRange('7d')}>Last 7 Days</Button>
        <Button onClick={() => setTimeRange('30d')}>Last 30 Days</Button>
        <Button onClick={() => setTimeRange('1y')}>Last Year</Button>
      </div>
      
      <div className="stats-grid">
        <StatCard
          title="Total Issued"
          value={stats?.totalIssued}
          icon="certificate"
        />
        <StatCard
          title="Active Credentials"
          value={stats?.activeCount}
          icon="check-circle"
        />
        <StatCard
          title="Revoked"
          value={stats?.revokedCount}
          icon="ban"
        />
        <StatCard
          title="Verifications"
          value={stats?.verificationCount}
          icon="shield-check"
        />
      </div>
      
      <div className="charts">
        <IssuanceChart data={stats?.issuanceOverTime} />
        <CredentialTypesPieChart data={stats?.byType} />
      </div>
    </div>
  );
};

QR Code Generation

Create QR codes for credential offers.

import QRCode from 'qrcode.react';

const QRGenerator = ({ credentialId, issuerDid }) => {
  const offerData = {
    type: 'CredentialOffer',
    credentialId,
    issuer: issuerDid,
    url: `https://api.sphyre.tech/api/issuer/offer/${credentialId}`
  };
  
  const qrValue = JSON.stringify(offerData);
  
  const downloadQR = () => {
    const canvas = document.getElementById('qr-canvas');
    const url = canvas.toDataURL('image/png');
    const link = document.createElement('a');
    link.download = `credential-offer-${credentialId}.png`;
    link.href = url;
    link.click();
  };
  
  return (
    <div className="qr-generator">
      <QRCode
        id="qr-canvas"
        value={qrValue}
        size={256}
        level="H"
        includeMargin={true}
      />
      <Button onClick={downloadQR}>Download QR Code</Button>
    </div>
  );
};

Authentication

Issuer organizations authenticate with their DID.

const Login = () => {
  const [did, setDid] = useState('');
  const [password, setPassword] = useState('');
  
  const handleLogin = async () => {
    try {
      const response = await apiService.login({ did, password });
      
      // Store token
      localStorage.setItem('token', response.token);
      localStorage.setItem('issuerDid', did);
      
      // Redirect to dashboard
      navigate('/dashboard');
      
    } catch (error) {
      toast.error('Login failed. Please check your credentials.');
    }
  };
  
  return (
    <div className="login-page">
      <Card>
        <h1>Issuer Login</h1>
        <Input
          label="Organization DID"
          value={did}
          onChange={(e) => setDid(e.target.value)}
          placeholder="did:alyra:..."
        />
        <Input
          label="Password"
          type="password"
          value={password}
          onChange={(e) => setPassword(e.target.value)}
        />
        <Button onClick={handleLogin}>Login</Button>
      </Card>
    </div>
  );
};

API Integration

class IssuerApiService {
  baseURL = 'https://api.sphyre.tech';
  
  async createSchema(schema) {
    return await this.post('/api/issuer/schema', schema);
  }
  
  async issueCredential(request) {
    return await this.post('/api/issuer/issue', request);
  }
  
  async getCredentialRequests(issuerDid, status = 'pending') {
    return await this.get(`/api/issuer/requests?status=${status}`);
  }
  
  async approveCredentialRequest(requestId) {
    return await this.post(`/api/issuer/request/${requestId}/approve`);
  }
  
  async revokeCredential(credentialId) {
    return await this.post(`/api/issuer/revoke/${credentialId}`);
  }
  
  async getAnalytics(issuerDid, timeRange) {
    return await this.get(`/api/issuer/analytics?range=${timeRange}`);
  }
  
  async post(endpoint, data) {
    const response = await fetch(`${this.baseURL}${endpoint}`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${this.getToken()}`
      },
      body: JSON.stringify(data)
    });
    return response.json();
  }
  
  async get(endpoint) {
    const response = await fetch(`${this.baseURL}${endpoint}`, {
      headers: {
        'Authorization': `Bearer ${this.getToken()}`
      }
    });
    return response.json();
  }
  
  getToken() {
    return localStorage.getItem('token');
  }
}

export const apiService = new IssuerApiService();

Best Practices

Credential Quality

Verify all data before issuance
Use clear field names and descriptions
Set appropriate expiration dates
Include contact information in templates

Security

Require multi-factor authentication
Audit all issuance actions
Implement role-based access control
Regular security reviews

User Experience

Provide clear rejection reasons
Fast approval processes
Mobile-responsive design
Helpful error messages

Data Management

Regular backups
Data retention policies
GDPR compliance
Secure credential storage

Resources

Issuing Guide

Complete issuance tutorial

API Reference

Issuer API documentation

Live Demo

Try Sphyre Issuers

GitHub

Source code

Getting Started

Core Concepts

Components

User Guides

Developer Guides

Sphyre Issuers

Sphyre Issuers

Overview

Technology

Key Features

Key Features

Application Structure

Core Workflows

1. Schema Creation

2. Template Design

3. Credential Issuance Workflow

4. Request Management

5. Batch Issuance

Credential Tracking

Analytics Dashboard

QR Code Generation

Authentication

API Integration

Best Practices

Resources

Issuing Guide

API Reference

Live Demo

GitHub

Getting Started

Core Concepts

Components

User Guides

Developer Guides

​Sphyre Issuers

​Overview

Technology

Key Features

​Key Features

​Application Structure

​Core Workflows

​1. Schema Creation

​2. Template Design

​3. Credential Issuance Workflow

​4. Request Management

​5. Batch Issuance

​Credential Tracking

​Analytics Dashboard

​QR Code Generation

​Authentication

​API Integration

​Best Practices

​Resources

Issuing Guide

API Reference

Live Demo

GitHub

Sphyre Issuers

Overview

Key Features

Application Structure

Core Workflows

1. Schema Creation

2. Template Design

3. Credential Issuance Workflow

4. Request Management

5. Batch Issuance

Credential Tracking

Analytics Dashboard

QR Code Generation

Authentication

API Integration

Best Practices

Resources