Initial Commit

2025-11-10 16:44:59 -05:00
commit 6decdb603c
13 changed files with 978 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,73 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Go workspace file
+go.work
+go.work.sum
+
+# IDEs
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# VS Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# Credentials and local config
+credentials.yaml
+credentials.yml
+.env
+.env.local
+*.key
+*.pem
+*.p12
+
+# OS specific
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Temporary files
+*.tmp
+*.temp
+*.log
+*.pid
+*.seed
+*.pid.lock
+
+# Debug files
+debug
+__debug_bin
+
+# Air (live reload for Go)
+tmp/
+.air.toml
+
+# GoLand
+*.iml
+
+# Test cache
+*.cover
+coverage.out
+coverage.html
--- a/README.md
+++ b/README.md
@@ -0,0 +1,96 @@
+# Dragonchain Go SDK
+
+A self-contained Go SDK for interacting with Dragonchain nodes.
+
+## Installation
+
+```bash
+go get git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go
+```
+
+## Usage
+
+```go
+package main
+
+import (
+    "fmt"
+    "log"
+
+    "git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go"
+    "git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+func main() {
+    // Initialize the SDK
+    client := sdk.NewDragonchainSDK(
+        "your-public-id",
+        "your-auth-key-id",
+        "your-auth-key",
+        "https://your-dragonchain-endpoint.com",
+    )
+
+    // Check system health
+    if err := client.System.Health(); err != nil {
+        log.Fatal("Health check failed:", err)
+    }
+
+    // Get system status
+    status, err := client.System.Status()
+    if err != nil {
+        log.Fatal("Failed to get status:", err)
+    }
+    fmt.Printf("Chain ID: %s, Level: %d\n", status.ID, status.Level)
+
+    // Create a transaction
+    txn := &models.TransactionCreateRequest{
+        TxnType: "my-transaction-type",
+        Payload: map[string]interface{}{
+            "message": "Hello Dragonchain",
+        },
+        Tag: "example-tag",
+    }
+
+    resp, err := client.Transaction.Create(txn)
+    if err != nil {
+        log.Fatal("Failed to create transaction:", err)
+    }
+    fmt.Printf("Created transaction: %s\n", resp.TransactionID)
+}
+```
+
+## Available Endpoints
+
+### System
+- `Health()` - Check system health
+- `Status()` - Get system status
+
+### Transaction
+- `Create(req)` - Create a new transaction
+- `CreateBulk(req)` - Create multiple transactions
+- `Get(transactionID)` - Get transaction by ID
+
+### Transaction Type
+- `Create(req)` - Create a new transaction type
+- `Get(txnType)` - Get transaction type by name
+- `List()` - List all transaction types
+- `Delete(txnType)` - Delete a transaction type
+
+### Smart Contract
+- `Create(req)` - Create a new smart contract
+- `Get(contractID)` - Get smart contract by ID
+- `List()` - List all smart contracts
+- `Update(contractID, req)` - Update a smart contract
+- `Upload(contractID, req)` - Upload smart contract code
+- `Delete(contractID)` - Delete a smart contract
+
+### Block
+- `Get(blockID)` - Get block by ID
+
+## Authentication
+
+The SDK uses HMAC-SHA256 authentication. You need to provide:
+- `publicID` - Your Dragonchain public ID
+- `authKeyID` - Your authentication key ID
+- `authKey` - Your authentication key
+- `baseURL` - The base URL of your Dragonchain node (e.g., "https://mychain.dragonchain.com")
--- a/block/block.go
+++ b/block/block.go
@@ -0,0 +1,26 @@
+package block
+
+import (
+	"fmt"
+
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+type BlockClient struct {
+	client *client.Client
+}
+
+func NewBlockClient(c *client.Client) *BlockClient {
+	return &BlockClient{client: c}
+}
+
+func (bc *BlockClient) Get(blockID string) (*models.Block, error) {
+	var resp models.Block
+	path := fmt.Sprintf("/api/v1/block/%s", blockID)
+	err := bc.client.Get(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
--- a/client/client.go
+++ b/client/client.go
@@ -0,0 +1,144 @@
+package client
+
+import (
+	"bytes"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+)
+
+type Client struct {
+	publicID   string
+	authKeyID  string
+	authKey    string
+	baseURL    string
+	httpClient *http.Client
+}
+
+func NewClient(publicID, authKeyID, authKey, baseURL string) *Client {
+	return &Client{
+		publicID:  publicID,
+		authKeyID: authKeyID,
+		authKey:   authKey,
+		baseURL:   strings.TrimSuffix(baseURL, "/"),
+		httpClient: &http.Client{
+			Timeout: 30 * time.Second,
+		},
+	}
+}
+
+func (c *Client) generateAuthHeader(method, path, timestamp, contentType string, body []byte) string {
+	msgStr := c.hmacMessage(method, path, timestamp, contentType, body)
+	hmacMsg := c.createHmac(msgStr)
+	b64hmac := base64.StdEncoding.EncodeToString(hmacMsg)
+	return fmt.Sprintf("DC1-HMAC-SHA256 %s:%s", c.authKeyID, b64hmac)
+}
+
+func (c *Client) hmacMessage(method, path, timestamp, contentType string, body []byte) string {
+	h := sha256.New()
+	h.Write(body)
+	hashContent := h.Sum(nil)
+	b64Content := base64.StdEncoding.EncodeToString(hashContent)
+
+	return fmt.Sprintf("%s\n%s\n%s\n%s\n%s\n%s",
+		strings.ToUpper(method),
+		path,
+		c.publicID,
+		timestamp,
+		contentType,
+		b64Content,
+	)
+}
+
+func (c *Client) createHmac(msgStr string) []byte {
+	h := hmac.New(sha256.New, []byte(c.authKey))
+	h.Write([]byte(msgStr))
+	return h.Sum(nil)
+}
+
+func (c *Client) doRequest(method, path, contentType string, body any, response any) error {
+	var bodyBytes []byte
+	var err error
+
+	if body != nil {
+		if !checkByteSlice(body) {
+			bodyBytes, err = json.Marshal(body)
+			if err != nil {
+				return fmt.Errorf("failed to marshal request body: %w", err)
+			}
+			contentType = "application/json"
+		} else {
+			bodyBytes = body.([]byte)
+		}
+	}
+
+	if len(bodyBytes) == 0 {
+		bodyBytes = []byte("")
+	}
+
+	fullURL := c.baseURL + path
+	req, err := http.NewRequest(method, fullURL, bytes.NewBuffer(bodyBytes))
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+
+	timestamp := fmt.Sprintf("%d", time.Now().Unix())
+	authHeader := c.generateAuthHeader(method, path, timestamp, contentType, bodyBytes)
+
+	req.Header.Set("Authorization", authHeader)
+	req.Header.Set("Dragonchain", c.publicID)
+	req.Header.Set("Timestamp", timestamp)
+	if contentType != "" {
+		req.Header.Set("Content-Type", contentType)
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to execute request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	respBody, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("API error (status %d): %s", resp.StatusCode, strings.TrimSpace(string(respBody)))
+	}
+
+	if response != nil && len(respBody) > 0 {
+		if err := json.Unmarshal(respBody, response); err != nil {
+			return fmt.Errorf("failed to unmarshal response: %w", err)
+		}
+	}
+
+	return nil
+}
+
+func checkByteSlice(body interface{}) bool {
+	_, ok := body.([]byte)
+	return ok
+}
+
+func (c *Client) Get(path string, response any) error {
+	return c.doRequest(http.MethodGet, path, "", nil, response)
+}
+
+func (c *Client) Post(path, contentType string, body any, response any) error {
+	return c.doRequest(http.MethodPost, path, contentType, body, response)
+}
+
+func (c *Client) Put(path, contentType string, body any, response any) error {
+	return c.doRequest(http.MethodPut, path, contentType, body, response)
+}
+
+func (c *Client) Delete(path string, response any) error {
+	return c.doRequest(http.MethodDelete, path, "", nil, response)
+}
--- a/contract/contract.go
+++ b/contract/contract.go
@@ -0,0 +1,80 @@
+package contract
+
+import (
+	"fmt"
+	"os"
+
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+type ContractClient struct {
+	client *client.Client
+}
+
+func NewContractClient(c *client.Client) *ContractClient {
+	return &ContractClient{client: c}
+}
+
+func (cc *ContractClient) Create(req *models.SmartContractCreateRequest) (*models.SmartContract, error) {
+	var resp models.SmartContract
+	err := cc.client.Post("/api/v1/contract", models.ContentTypeJSON, req, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (cc *ContractClient) Get(contractID string) (*models.SmartContract, error) {
+	var resp models.SmartContract
+	path := fmt.Sprintf("/api/v1/contract/%s", contractID)
+	err := cc.client.Get(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (cc *ContractClient) List() (*models.ListResponse, error) {
+	var resp models.ListResponse
+	err := cc.client.Get("/api/v1/contract", &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (cc *ContractClient) Update(contractID string, req *models.SmartContractUpdateRequest) (*models.SuccessResponse, error) {
+	var resp models.SuccessResponse
+	path := fmt.Sprintf("/api/v1/contract/%s", contractID)
+	err := cc.client.Put(path, models.ContentTypeJSON, req, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (cc *ContractClient) Upload(contractID string, filepath string) (*models.SuccessResponse, error) {
+	fileContent, err := os.ReadFile(filepath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read file: %w", err)
+	}
+
+	var resp models.SuccessResponse
+	path := fmt.Sprintf("/api/v1/contract/%s/upload", contractID)
+	err = cc.client.Put(path, "application/octet-stream", fileContent, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (cc *ContractClient) Delete(contractID string) (*models.SuccessResponse, error) {
+	var resp models.SuccessResponse
+	path := fmt.Sprintf("/api/v1/contract/%s", contractID)
+	err := cc.client.Delete(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
--- a/credentials/credentials.go
+++ b/credentials/credentials.go
@@ -0,0 +1,221 @@
+package credentials
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"gopkg.in/yaml.v3"
+)
+
+// ChainConfig represents a single chain configuration
+type ChainConfig struct {
+	Name      string `yaml:"name"`
+	PublicId  string `yaml:"publicId"`
+	AuthKeyId string `yaml:"authKeyId"`
+	AuthKey   string `yaml:"authKey"`
+	Endpoint  string `yaml:"endpoint"`
+}
+
+// Config represents the entire configuration file structure
+type Config struct {
+	Default string        `yaml:"default"`
+	Chains  []ChainConfig `yaml:"chains"`
+	node    *yaml.Node    // Store the original node for preserving formatting
+}
+
+// LoadConfig reads and parses a YAML configuration file
+func LoadConfig(filePath string) (*Config, error) {
+	// Expand the file path (handles ~/, ./, and environment variables)
+	expandedPath, err := expandPath(filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to expand path %s: %w", filePath, err)
+	}
+
+	// Read the file
+	data, err := ioutil.ReadFile(expandedPath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read config file %s: %w", expandedPath, err)
+	}
+
+	// Parse YAML with Node to preserve formatting
+	var node yaml.Node
+	if err := yaml.Unmarshal(data, &node); err != nil {
+		return nil, fmt.Errorf("failed to parse YAML config: %w", err)
+	}
+
+	var config Config
+	if err := node.Decode(&config); err != nil {
+		return nil, fmt.Errorf("failed to decode YAML config: %w", err)
+	}
+
+	// Store the node for later use when saving
+	config.node = &node
+
+	return &config, nil
+}
+
+// LoadConfigFromString parses YAML configuration from a string
+func LoadConfigFromString(yamlContent string) (*Config, error) {
+	var node yaml.Node
+	if err := yaml.Unmarshal([]byte(yamlContent), &node); err != nil {
+		return nil, fmt.Errorf("failed to parse YAML config: %w", err)
+	}
+
+	var config Config
+	if err := node.Decode(&config); err != nil {
+		return nil, fmt.Errorf("failed to decode YAML config: %w", err)
+	}
+
+	config.node = &node
+	return &config, nil
+}
+
+// GetDefaultChain returns the chain configuration for the default publicId
+func (c *Config) GetDefaultChain() *ChainConfig {
+	for i := range c.Chains {
+		if c.Chains[i].PublicId == c.Default {
+			return &c.Chains[i]
+		}
+	}
+	return nil
+}
+
+// GetChainByPublicId returns the chain configuration for the specified publicId
+func (c *Config) GetChainByPublicId(publicId string) *ChainConfig {
+	for i := range c.Chains {
+		if c.Chains[i].PublicId == publicId {
+			return &c.Chains[i]
+		}
+	}
+	return nil
+}
+
+// ListChains returns all chain names
+func (c *Config) ListChains() []string {
+	names := make([]string, len(c.Chains))
+	for i, chain := range c.Chains {
+		names[i] = chain.Name
+	}
+	return names
+}
+
+// AddChain adds a chain configuration to the configuration
+func (c *Config) AddChain(chain *ChainConfig) {
+	c.Chains = append(c.Chains, *chain)
+}
+
+// SetDefault sets the default chain publicId
+func (c *Config) SetDefault(publicId string) {
+	c.Default = publicId
+}
+
+// DeleteChain deletes a chain configuration from the configuration
+func (c *Config) DeleteChain(publicId string) error {
+	if publicId == c.Default {
+		return fmt.Errorf("cannot delete default chain")
+	}
+	for i, chain := range c.Chains {
+		if chain.PublicId == publicId {
+			c.Chains = append(c.Chains[:i], c.Chains[i+1:]...)
+			return nil
+		}
+	}
+	return nil
+}
+
+// SaveConfig writes the configuration to a YAML file
+func (c *Config) SaveConfig(filePath string) error {
+	expandedPath, err := expandPath(filePath)
+	if err != nil {
+		return fmt.Errorf("failed to expand path %s: %w", filePath, err)
+	}
+
+	var data []byte
+	if c.node != nil {
+		// Update the node with current config values while preserving formatting
+		if err := c.node.Encode(c); err != nil {
+			return fmt.Errorf("failed to encode config to node: %w", err)
+		}
+
+		// Ensure newlines between chain entries
+		c.ensureChainSeparation()
+
+		// Marshal the node to preserve comments and formatting
+		data, err = yaml.Marshal(c.node)
+		if err != nil {
+			return fmt.Errorf("failed to marshal config to YAML: %w", err)
+		}
+	} else {
+		// Fallback to regular marshaling if no node is available
+		data, err = yaml.Marshal(c)
+		if err != nil {
+			return fmt.Errorf("failed to marshal config to YAML: %w", err)
+		}
+	}
+
+	if err := ioutil.WriteFile(expandedPath, data, 0644); err != nil {
+		return fmt.Errorf("failed to write config file %s: %w", expandedPath, err)
+	}
+
+	return nil
+}
+
+// ensureChainSeparation adds blank lines between chain entries in the YAML node
+func (c *Config) ensureChainSeparation() {
+	if c.node == nil || len(c.node.Content) == 0 {
+		return
+	}
+
+	// Navigate to the document node, then the mapping node
+	docNode := c.node
+	if docNode.Kind == yaml.DocumentNode && len(docNode.Content) > 0 {
+		docNode = docNode.Content[0]
+	}
+
+	if docNode.Kind != yaml.MappingNode {
+		return
+	}
+
+	// Find the "chains" key in the mapping
+	for i := 0; i < len(docNode.Content); i += 2 {
+		if i+1 >= len(docNode.Content) {
+			break
+		}
+
+		keyNode := docNode.Content[i]
+		valueNode := docNode.Content[i+1]
+
+		if keyNode.Value == "chains" && valueNode.Kind == yaml.SequenceNode {
+			// Add HeadComment (newline before) to each chain entry except the first
+			for j := 1; j < len(valueNode.Content); j++ {
+				chainNode := valueNode.Content[j]
+				if chainNode.HeadComment == "" {
+					chainNode.HeadComment = "\n"
+				}
+			}
+			break
+		}
+	}
+}
+
+// expandPath is a simple path expansion function (you can replace this with your utils.ExpandPath)
+func expandPath(path string) (string, error) {
+	// Expand environment variables
+	path = os.ExpandEnv(path)
+
+	// Handle home directory
+	if len(path) > 0 && path[0] == '~' {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return "", err
+		}
+		if len(path) == 1 {
+			path = home
+		} else if path[1] == '/' {
+			path = home + path[1:]
+		}
+	}
+
+	return path, nil
+}
--- a/dragonchain.go
+++ b/dragonchain.go
@@ -0,0 +1,35 @@
+package sdk
+
+import (
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/block"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/contract"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/system"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/transaction"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/transactiontype"
+)
+
+type DragonchainSDK struct {
+	client          *client.Client
+	Transaction     *transaction.TransactionClient
+	TransactionType *transactiontype.TransactionTypeClient
+	Contract        *contract.ContractClient
+	Block           *block.BlockClient
+	System          *system.SystemClient
+}
+
+func NewDragonchainSDK(publicID, authKeyID, authKey, baseURL string) *DragonchainSDK {
+	c := client.NewClient(publicID, authKeyID, authKey, baseURL)
+	return &DragonchainSDK{
+		client:          c,
+		Transaction:     transaction.NewTransactionClient(c),
+		TransactionType: transactiontype.NewTransactionTypeClient(c),
+		Contract:        contract.NewContractClient(c),
+		Block:           block.NewBlockClient(c),
+		System:          system.NewSystemClient(c),
+	}
+}
+
+func (sdk *DragonchainSDK) GetClient() *client.Client {
+	return sdk.client
+}
--- a/go.mod
+++ b/go.mod
@@ -0,0 +1,5 @@
+module git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go
+
+go 1.24.5
+
+require gopkg.in/yaml.v3 v3.0.1
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,4 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/models/models.go
+++ b/models/models.go
@@ -0,0 +1,159 @@
+package models
+
+const (
+	ContentTypeJSON = "application/json"
+)
+
+type TransactionCreateRequest struct {
+	Version string `json:"version,omitempty"`
+	TxnType string `json:"txn_type"`
+	Payload string `json:"payload"`
+	Tag     string `json:"tag,omitempty"`
+}
+
+type TransactionCreateResponse struct {
+	TransactionID string `json:"transaction_id"`
+}
+
+type TransactionBulkRequest struct {
+	Transactions []TransactionCreateRequest `json:"transactions"`
+}
+
+type TransactionBulkResponse struct {
+	TransactionIDs []string `json:"transaction_ids"`
+}
+
+type TransactionListResponse struct {
+	TransactionTypes []*TransactionType `json:"transactionTypes"`
+}
+
+type Transaction struct {
+	Version string            `json:"version"`
+	Header  TransactionHeader `json:"header"`
+	Proof   TransactionProof  `json:"proof"`
+	Payload string            `json:"payload"`
+}
+
+type TransactionHeader struct {
+	Tag       string `json:"tag"`
+	DcId      string `json:"dc_id"`
+	TxnId     string `json:"txn_id"`
+	Invoker   string `json:"invoker"`
+	BlockId   string `json:"block_id"`
+	TxnType   string `json:"txn_type"`
+	Timestamp string `json:"timestamp"`
+}
+
+type TransactionProof struct {
+	Full     string `json:"full"`
+	Stripped string `json:"stripped"`
+}
+
+type ListTransactionsResponse struct {
+	Transactions []Transaction `json:"transactions"`
+}
+
+type TransactionTypeCreateRequest struct {
+	Version string `json:"version,omitempty"`
+	TxnType string `json:"txn_type"`
+}
+
+type TransactionTypeCreateResponse struct {
+	Success bool `json:"success"`
+}
+
+type TransactionType struct {
+	Version          string        `json:"version"`
+	Created          int64         `json:"created"`
+	Modified         int64         `json:"modified"`
+	TxnType          string        `json:"txn_type"`
+	ContractID       string        `json:"contract_id,omitempty"`
+	CustomIndexes    []interface{} `json:"custom_indexes"`
+	ActiveSinceBlock string        `json:"active_since_block"`
+}
+
+type SmartContractCreateRequest struct {
+	Environment          string            `json:"environment"`
+	TransactionType      string            `json:"transactionType"`
+	ExecutionOrder       string            `json:"executionOrder"`
+	EnvironmentVariables map[string]string `json:"environmentVariables,omitempty"`
+	Secrets              map[string]string `json:"secret,omitempty"`
+}
+
+type SmartContractUpdateRequest struct {
+	Version              string            `json:"version,omitempty"`
+	Enabled              bool              `json:"enabled"`
+	EnvironmentVariables map[string]string `json:"environmentVariables,omitempty"`
+	Secrets              map[string]string `json:"secret,omitempty"`
+}
+
+type SmartContract struct {
+	Id       string `json:"id"`
+	Created  uint64 `json:"created"`
+	Modified uint64 `json:"modified"`
+
+	Version         string `json:"version"`
+	Environment     string `json:"environment"`
+	TransactionType string `json:"transactionType"`
+	ExecutionOrder  string `json:"executionOrder"`
+
+	ExecutionInfo *SmartContractExecutionInfo `json:"executionInfo"`
+
+	EnvVars map[string]string `json:"envVars"`
+	Secrets []string          `json:"secrets"`
+}
+
+type SmartContractExecutionInfo struct {
+	Type string `json:"type"`
+
+	// LocalExecutable type
+	ExecutablePath             string `json:"executablePath"`
+	ExecutableWorkingDirectory string `json:"executableWorkingDirectory"`
+	ExecutableHash             string `json:"executableHash"`
+}
+
+type Block struct {
+	Version      string     `json:"version"`
+	ID           string     `json:"block_id"`
+	Timestamp    string     `json:"timestamp"`
+	PrevID       string     `json:"prev_id"`
+	PrevProof    string     `json:"prev_proof"`
+	Transactions []string   `json:"transactions"`
+	Proof        BlockProof `json:"proof"`
+}
+
+type BlockProof struct {
+	Scheme string `json:"scheme"`
+	Proof  string `json:"proof"`
+	Nonce  int64  `json:"nonce,omitempty"`
+}
+
+type SystemStatus struct {
+	ID              string `json:"id"`
+	Level           int    `json:"level"`
+	URL             string `json:"url"`
+	HashAlgo        string `json:"hashAlgo"`
+	Scheme          string `json:"scheme"`
+	Version         string `json:"version"`
+	EncryptionAlgo  string `json:"encryptionAlgo"`
+	IndexingEnabled bool   `json:"indexingEnabled"`
+
+	// Level 5 Node
+	Funded            string `json:"funded,omitempty"`
+	BroadcastInterval string `json:"broadcastInterval,omitempty"`
+	Network           string `json:"network,omitempty"`
+	InterchainWallet  string `json:"interchainWallet,omitempty"`
+}
+
+type SuccessResponse struct {
+	Success bool `json:"success"`
+}
+
+type ErrorResponse struct {
+	Error string `json:"error"`
+}
+
+type ListResponse struct {
+	Items      []interface{} `json:"items"`
+	TotalCount int           `json:"total_count"`
+}
--- a/system/system.go
+++ b/system/system.go
@@ -0,0 +1,27 @@
+package system
+
+import (
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+type SystemClient struct {
+	client *client.Client
+}
+
+func NewSystemClient(c *client.Client) *SystemClient {
+	return &SystemClient{client: c}
+}
+
+func (sc *SystemClient) Health() error {
+	return sc.client.Get("/api/v1/health", nil)
+}
+
+func (sc *SystemClient) Status() (*models.SystemStatus, error) {
+	var resp models.SystemStatus
+	err := sc.client.Get("/api/v1/status", &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
--- a/transaction/transaction.go
+++ b/transaction/transaction.go
@@ -0,0 +1,54 @@
+package transaction
+
+import (
+	"fmt"
+
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+type TransactionClient struct {
+	client *client.Client
+}
+
+func NewTransactionClient(c *client.Client) *TransactionClient {
+	return &TransactionClient{client: c}
+}
+
+func (tc *TransactionClient) Create(req *models.TransactionCreateRequest) (*models.TransactionCreateResponse, error) {
+	var resp models.TransactionCreateResponse
+	err := tc.client.Post("/api/v1/transaction", models.ContentTypeJSON, req, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (tc *TransactionClient) CreateBulk(req *models.TransactionBulkRequest) (*models.TransactionBulkResponse, error) {
+	var resp models.TransactionBulkResponse
+	err := tc.client.Post("/api/v1/transaction/bulk", models.ContentTypeJSON, req, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (tc *TransactionClient) Get(transactionID string) (*models.Transaction, error) {
+	var resp models.Transaction
+	path := fmt.Sprintf("/api/v1/transaction/%s", transactionID)
+	err := tc.client.Get(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (tc *TransactionClient) List() (*models.ListTransactionsResponse, error) {
+	var resp models.ListTransactionsResponse
+	path := "/api/v1/transaction/"
+	err := tc.client.Get(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
--- a/transactiontype/transactiontype.go
+++ b/transactiontype/transactiontype.go
@@ -0,0 +1,54 @@
+package transactiontype
+
+import (
+	"fmt"
+
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/client"
+	"git.dragonchain.com/dragonchain/dragonchain-prime-sdk-go/models"
+)
+
+type TransactionTypeClient struct {
+	client *client.Client
+}
+
+func NewTransactionTypeClient(c *client.Client) *TransactionTypeClient {
+	return &TransactionTypeClient{client: c}
+}
+
+func (ttc *TransactionTypeClient) Create(req *models.TransactionTypeCreateRequest) (*models.TransactionTypeCreateResponse, error) {
+	var resp models.TransactionTypeCreateResponse
+	err := ttc.client.Post("/api/v1/transaction-type", models.ContentTypeJSON, req, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (ttc *TransactionTypeClient) Get(txnType string) (*models.TransactionType, error) {
+	var resp models.TransactionType
+	path := fmt.Sprintf("/api/v1/transaction-type/%s", txnType)
+	err := ttc.client.Get(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (ttc *TransactionTypeClient) List() (*models.TransactionListResponse, error) {
+	var resp models.TransactionListResponse
+	err := ttc.client.Get("/api/v1/transaction-types", &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (ttc *TransactionTypeClient) Delete(txnType string) (*models.SuccessResponse, error) {
+	var resp models.SuccessResponse
+	path := fmt.Sprintf("/api/v1/transaction-type/%s", txnType)
+	err := ttc.client.Delete(path, &resp)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}