JSON-RPC API Documentation

The Hookah JSON-RPC API provides programmatic access to Radix blockchain operations, webhook management, trigger configuration, and transaction intent handling.

Base URL

Development/Local: http://localhost:3000/api/jsonrpc
Production: https://app.hookah.ing/api/jsonrpc

API Structure

All requests follow JSON-RPC 2.0 specification:

Use HTTP POST method
Include Content-Type: application/json header
Authentication required for protected endpoints via Authorization: Bearer <token> header

Authentication Requirements

🔓 Public Methods (No authentication required):

auth.generateChallenge
ret.virtualAccountAddressFromPublicKey
trigger.getValidEventNames

🔐 Protected Methods (Authentication required):

auth.getSession
auth.signInWithProof (generates token)
All webhook.* methods
All trigger.* methods (except getValidEventNames)
All transactionIntent.* methods
All log.* methods

Authentication Flow

1. Generate Challenge 🔓

Generate a cryptographic challenge for authentication.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "auth.generateChallenge"
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "challenge_string_here"
}

Authenticate using a signed challenge.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "auth.signInWithProof",
  "params": {
    "challenge": "challenge_string",
    "proof": {
      "signature": "hex_signature",
      "curve": "curve25519",
      "publicKey": "hex_public_key"
    }
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "token": "jwt_token",
    "session": {
      "userId": "user_id"
    }
  }
}

3. Get Session 🔐

Retrieve current session information.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "auth.getSession"
}

Headers:

Authorization: Bearer <jwt_token>

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "session": {
      "userId": "user_id"
    }
  }
}

Radix Engine Toolkit (RET) Methods

Get Virtual Account Address 🔓

Derive a virtual account address from a public key.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "ret.virtualAccountAddressFromPublicKey",
  "params": {
    "publicKey": "hex_public_key",
    "curve": "curve25519",
    "networkId": 1
  }
}

Parameters:

publicKey: Hex-encoded public key
curve: Cryptographic curve (currently supports "curve25519")
networkId: Network identifier (1 for mainnet, 2 for stokenet)

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "account_rdx129cd6fa9x5pmwx02j3zmqucpxlemqgh8lrjcgg932pppm349l0uud2"
}

Transaction Intent Management

Create Transaction Intent 🔐

Create a new transaction intent from a manifest.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "transactionIntent.createTransactionIntent",
  "params": {
    "manifest": {
      "instructions": {
        "kind": "String",
        "value": "CALL_METHOD\n  Address(\"component_address\")\n  \"method_name\"\n  Args();"
      },
      "blobs": []
    },
    "networkId": 2
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "transaction_id",
    "intentHash": "hex_intent_hash"
  }
}

Provide Signature 🔐

Add a signature to a transaction intent.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "transactionIntent.provideSignature",
  "params": {
    "transactionId": "transaction_id",
    "signerPublicKey": "hex_public_key",
    "curve": "EddsaEd25519",
    "signature": "hex_signature"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "status": "ReadyToSubmit"
  }
}

Submit Transaction Intent 🔐

Submit a signed transaction intent to the network.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "transactionIntent.submitTransactionIntent",
  "params": {
    "transactionId": "transaction_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "duplicate": false
  }
}

Example: Complete Transaction Flow

Get Virtual Account Address
Authenticate (generate challenge, sign, get session)
Create Transaction Intent with manifest
Sign Intent Hash with private key
Provide Signature to transaction
Submit Transaction Intent

Webhook Management

Create Webhook 🔐

Create a new webhook endpoint.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.create",
  "params": {
    "name": "My Webhook",
    "url": "https://example.com/webhook",
    "headerKey": "X-Custom-Header",
    "headerValue": "custom-value"
  }
}

Parameters:

name: Optional webhook name
url: Webhook URL (must be valid URL)
headerKey: Optional custom header key
headerValue: Optional custom header value

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "webhook_id",
    "name": "My Webhook",
    "userId": "user_id",
    "definition": {
      "type": "webhook",
      "url": "https://example.com/webhook",
      "headerKey": "X-Custom-Header",
      "headerValue": "custom-value"
    },
    "createdAt": "2025-01-01T00:00:00Z"
  }
}

Note: The webhook URL and headers are stored in the definition object, not directly in the result.

Get Webhook by ID 🔐

Retrieve a specific webhook.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.getById",
  "params": {
    "id": "webhook_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "webhook_id",
    "name": "My Webhook",
    "userId": "user_id",
    "definition": {
      "type": "webhook",
      "url": "https://example.com/webhook",
      "headerKey": "X-Custom-Header",
      "headerValue": "custom-value"
    },
    "createdAt": "2025-01-01T00:00:00Z"
  }
}

Get User's Webhooks 🔐

Retrieve all webhooks for the authenticated user.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.getByUserId"
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "webhook_id_1",
      "name": "My First Webhook",
      "userId": "user_id",
      "definition": {
        "type": "webhook",
        "url": "https://example.com/webhook1"
      },
      "createdAt": "2025-01-01T00:00:00Z"
    },
    {
      "id": "webhook_id_2",
      "name": "My Second Webhook",
      "userId": "user_id",
      "definition": {
        "type": "webhook",
        "url": "https://example.com/webhook2",
        "headerKey": "Authorization",
        "headerValue": "Bearer token"
      },
      "createdAt": "2025-01-02T00:00:00Z"
    }
  ]
}

Update Webhook 🔐

Update an existing webhook.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.update",
  "params": {
    "id": "webhook_id",
    "name": "Updated Webhook",
    "url": "https://example.com/new-webhook",
    "headerKey": "X-New-Header",
    "headerValue": "new-value"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "webhook_id",
    "name": "Updated Webhook",
    "userId": "user_id",
    "definition": {
      "type": "webhook",
      "url": "https://example.com/new-webhook",
      "headerKey": "X-New-Header",
      "headerValue": "new-value"
    },
    "createdAt": "2025-01-01T00:00:00Z"
  }
}

Remove Webhook 🔐

Delete a webhook.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.remove",
  "params": {
    "id": "webhook_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "webhook_id",
      "name": "Deleted Webhook",
      "userId": "user_id",
      "definition": {
        "type": "webhook",
        "url": "https://example.com/webhook"
      },
      "createdAt": "2025-01-01T00:00:00Z"
    }
  ]
}

Get Dashboard Data 🔐

Retrieve webhook statistics and counts.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "webhook.getDashboardData"
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "webhook_id",
      "name": "My Webhook",
      "userId": "user_id",
      "definition": {
        "type": "webhook",
        "url": "https://example.com/webhook"
      },
      "createdAt": "2025-01-01T00:00:00Z",
      "successCount": 152,
      "errorCount": 3,
      "lastTriggered": "2025-01-15T14:30:00Z"
    }
  ]
}

Trigger Management

Create Trigger 🔐

Create a new trigger to monitor blockchain events.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.create",
  "params": {
    "emitterAddress": "component_rdx1...",
    "webhookId": "webhook_id",
    "eventName": "DepositEvent",
    "conditions": [
      {
        "id": "condition_1",
        "field": "amount",
        "comparator": "gt_n",
        "value": "100"
      }
    ]
  }
}

Parameters:

emitterAddress: Radix component address to monitor
webhookId: ID of webhook to call when triggered
eventName: Name of the event to monitor
conditions: Optional array of trigger conditions

Trigger Conditions:

id: Unique identifier for the condition
field: Field name in the event data
comparator: Comparison operator:
- Numeric: eq_n, neq_n, gt_n, lt_n, gte_n, lte_n
- String: eq_s, neq_s, c_s (contains), nc_s (not contains), sw_s (starts with), ew_s (ends with)
- Boolean: eq_b, neq_b
value: Value to compare against

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "trigger_id",
    "webhookId": "webhook_id",
    "userId": "user_id",
    "status": "active",
    "definition": {
      "version": 2,
      "rules": [...]
    }
  }
}

Get User's Triggers 🔐

Retrieve all triggers for the authenticated user.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.getByUserId"
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "trigger_id_1",
      "webhookId": "webhook_id",
      "userId": "user_id",
      "status": "active",
      "emitterAddress": "component_rdx1...",
      "eventName": "DepositEvent",
      "definition": {
        "version": 2,
        "rules": [
          {
            "emitterAddress": "component_rdx1...",
            "eventName": "DepositEvent",
            "conditions": [
              {
                "id": "condition_1",
                "field": "amount",
                "comparator": "gt_n",
                "value": "100"
              }
            ]
          }
        ]
      },
      "createdAt": "2025-01-01T00:00:00Z"
    }
  ]
}

Get Triggers by Webhook ID 🔐

Retrieve triggers associated with a specific webhook.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.getByWebhookId",
  "params": {
    "webhookId": "webhook_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "trigger_id_1",
      "webhookId": "webhook_id",
      "userId": "user_id",
      "status": "active",
      "definition": {
        "version": 2,
        "rules": [
          {
            "emitterAddress": "component_rdx1...",
            "eventName": "DepositEvent",
            "conditions": []
          }
        ]
      },
      "createdAt": "2025-01-01T00:00:00Z"
    }
  ]
}

Get Valid Event Names 🔓

Retrieve available event names for a component address.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.getValidEventNames",
  "params": {
    "emitterAddress": "component_rdx1..."
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    "DepositEvent",
    "WithdrawEvent",
    "TransferEvent",
    "SwapEvent",
    "MintEvent",
    "BurnEvent"
  ]
}

Update Trigger 🔐

Update an existing trigger.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.update",
  "params": {
    "id": "trigger_id",
    "emitterAddress": "component_rdx1...",
    "eventName": "DepositEvent",
    "status": "active",
    "webhookId": "webhook_id",
    "conditions": [
      {
        "id": "condition_2",
        "field": "status",
        "comparator": "eq_s",
        "value": "active"
      }
    ]
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "id": "trigger_id",
    "webhookId": "webhook_id",
    "userId": "user_id",
    "status": "active",
    "definition": {
      "version": 2,
      "rules": [
        {
          "emitterAddress": "component_rdx1...",
          "eventName": "DepositEvent",
          "conditions": [
            {
              "id": "condition_2",
              "field": "status",
              "comparator": "eq_s",
              "value": "active"
            }
          ]
        }
      ]
    },
    "createdAt": "2025-01-01T00:00:00Z"
  }
}

Remove Trigger 🔐

Delete a trigger.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "trigger.remove",
  "params": {
    "id": "trigger_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "trigger_id",
      "webhookId": "webhook_id",
      "userId": "user_id",
      "status": "active",
      "definition": {
        "version": 2,
        "rules": [
          {
            "emitterAddress": "component_rdx1...",
            "eventName": "DepositEvent",
            "conditions": []
          }
        ]
      },
      "createdAt": "2025-01-01T00:00:00Z"
    }
  ]
}

Log Management

Get Logs by Trigger ID 🔐

Retrieve execution logs for a specific trigger.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "log.getByTriggerId",
  "params": {
    "triggerId": "trigger_id"
  }
}

Response:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "id": "log_id_1",
      "triggerId": "trigger_id",
      "status": "success",
      "webhookUrl": "https://example.com/webhook",
      "responseCode": 200,
      "responseBody": "OK",
      "eventData": {
        "transactionId": "txid_rdx1...",
        "amount": "150.50",
        "from": "account_rdx1...",
        "to": "account_rdx1..."
      },
      "createdAt": "2025-01-15T14:30:00Z"
    },
    {
      "id": "log_id_2",
      "triggerId": "trigger_id",
      "status": "error",
      "webhookUrl": "https://example.com/webhook",
      "responseCode": 500,
      "responseBody": "Internal Server Error",
      "error": "Connection timeout",
      "eventData": {
        "transactionId": "txid_rdx1...",
        "amount": "75.25"
      },
      "createdAt": "2025-01-15T13:15:00Z"
    }
  ]
}

Error Handling

All methods follow JSON-RPC 2.0 error format:

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32000,
    "message": "Error description"
  }
}

Common Error Codes:

-32700: Parse error (invalid JSON)
-32600: Invalid request
-32601: Method not found
-32602: Invalid params/Internal error
NOT_FOUND: Resource not found
UNAUTHORIZED: Authentication required
INTERNAL_SERVER_ERROR: Server error

Network IDs

Mainnet: 1
Stokenet (Testnet): 2

Cryptographic Notes

Authentication: Uses Ed25519 signatures with curve25519
Transaction Signing: Uses EddsaEd25519 curve
Key Format: All keys and signatures are hex-encoded
Challenge Signing: Sign the raw challenge bytes
Intent Signing: Sign the intent hash (hex-decoded first)

Complete Workflow Example

Here's a practical example showing how to set up webhook monitoring for blockchain events:

1. Authenticate

// Generate challenge
const challengeResponse = await fetch(baseUrl, {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 1,
    method: 'auth.generateChallenge'
  })
});

// Sign challenge and authenticate
const challenge = challengeResponse.result;
const signature = ed25519.sign(challenge, privateKey);

const authResponse = await fetch(baseUrl, {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 1,
    method: 'auth.signInWithProof',
    params: {
      challenge,
      proof: {
        signature: toHex(signature),
        curve: 'curve25519',
        publicKey: toHex(publicKey)
      }
    }
  })
});

const token = authResponse.result.token;

2. Create Webhook

const webhookResponse = await fetch(baseUrl, {
  method: 'POST',
  headers: { 
    Authorization: `Bearer ${token}`,
    'Content-Type': 'application/json' 
  },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 1,
    method: 'webhook.create',
    params: {
      name: 'DEX Trade Monitor',
      url: 'https://myapp.com/webhook/dex-trades',
      headerKey: 'X-API-Key',
      headerValue: 'your-api-key'
    }
  })
});

const webhookId = webhookResponse.result.id;

3. Create Trigger

const triggerResponse = await fetch(baseUrl, {
  method: 'POST',
  headers: { 
    Authorization: `Bearer ${token}`,
    'Content-Type': 'application/json' 
  },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 1,
    method: 'trigger.create',
    params: {
      emitterAddress: 'component_rdx1...dex_component',
      webhookId: webhookId,
      eventName: 'TradeEvent',
      conditions: [
        {
          id: 'min_amount_filter',
          field: 'amount',
          comparator: 'gt_n',
          value: '1000'
        }
      ]
    }
  })
});

4. Monitor Events

Your webhook will now receive HTTP POST requests when trades > 1000 tokens occur on the specified DEX component.

Base URL​

API Structure​

Authentication Requirements​

Authentication Flow​

1. Generate Challenge 🔓​

2. Sign In with Proof 🔓​

3. Get Session 🔐​

Radix Engine Toolkit (RET) Methods​

Get Virtual Account Address 🔓​

Transaction Intent Management​

Create Transaction Intent 🔐​

Provide Signature 🔐​

Submit Transaction Intent 🔐​

Example: Complete Transaction Flow​

Webhook Management​

Create Webhook 🔐​

Get Webhook by ID 🔐​

Get User's Webhooks 🔐​

Update Webhook 🔐​

Remove Webhook 🔐​

Get Dashboard Data 🔐​

Trigger Management​

Create Trigger 🔐​

Get User's Triggers 🔐​

Get Triggers by Webhook ID 🔐​

Get Valid Event Names 🔓​

Update Trigger 🔐​

Remove Trigger 🔐​

Log Management​

Get Logs by Trigger ID 🔐​

Error Handling​

Network IDs​

Cryptographic Notes​

Complete Workflow Example​

1. Authenticate​

2. Create Webhook​

3. Create Trigger​

4. Monitor Events​

Base URL

API Structure

Authentication Requirements

Authentication Flow

1. Generate Challenge 🔓

2. Sign In with Proof 🔓

3. Get Session 🔐

Radix Engine Toolkit (RET) Methods

Get Virtual Account Address 🔓

Transaction Intent Management

Create Transaction Intent 🔐

Provide Signature 🔐

Submit Transaction Intent 🔐

Example: Complete Transaction Flow

Webhook Management

Create Webhook 🔐

Get Webhook by ID 🔐

Get User's Webhooks 🔐

Update Webhook 🔐

Remove Webhook 🔐

Get Dashboard Data 🔐

Trigger Management

Create Trigger 🔐

Get User's Triggers 🔐

Get Triggers by Webhook ID 🔐

Get Valid Event Names 🔓

Update Trigger 🔐

Remove Trigger 🔐

Log Management

Get Logs by Trigger ID 🔐

Error Handling

Network IDs

Cryptographic Notes

Complete Workflow Example

1. Authenticate

2. Create Webhook

3. Create Trigger

4. Monitor Events