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+# ThreeFold Grid Node Registrar Client
+
+A Go client for interacting with the ThreeFold Grid Node Registrar service. Facilitates node registration and management on the ThreeFold Grid.
+
+## Overview
+
+The Node Registrar Client enables communication with the ThreeFold Grid's node registration service. It provides methods to:
+
+* Register nodes
+* Manage node metadata
+* Retrieve node information
+* Delete node registrations
+
+## Features
+
+### Version
+
+* **Get Zos Version**: Loads zos version for the current network
+* **Set Zos Version**: Set zos version to specific version (can only be done by the network admin)
+
+### Accounts
+
+* **Create Account**: Create new account on the registrar with uniqe key.
+* **Update Account**: Update the account configuration (relays & rmbEncKey).
+* **Ensure Account**: Ensures that an account is created with specific seed.
+* **Get Account**: Get an account using either its twin\_id or its public\_key.
+
+### Farms
+
+* **Create Farm**: Create new farm on the registrar with uniqe name.
+* **update Farm**: update farm configuration (farm\_id, dedicated).
+* **Get Farm**: Get a farm using either its farm\_id.
+
+### Node
+
+* **Register Node**: Register physical/virtual nodes with the TFGrid.
+* **Update Node**: Update node configuration (farm\_id, interfaces, resources, location, secure\_boot, virtualized).
+* **Get Node**: Fetch registered node details using (node\_id, twin\_id, farm\_id).
+* **Update Node Uptime**: Update node Uptime.
+
+### API Methods
+
+#### Version Operations
+
+| Method          | Description                      | Parameters                 | Returns             |
+|-----------------|----------------------------------|----------------------------|---------------------|
+| GetZosVersion   | Get current zos version          | None                       | (ZosVersion, error) |
+| SetZosVersion   | Update zos version (admin-only)  | version string, force bool | error               |
+
+#### Account Management
+
+| Method         | Description               | Parameters                        | Returns          |
+|----------------|---------------------------|-----------------------------------|------------------|
+| CreateAccount  | Create new account        | relays []string, rmbEncKey string | (Account, error) |
+| EnsureAccount  | Create account if missing | relays []string, rmbEncKey string | (Account, error) |
+| GetAccount     | Get account by twin ID    | twinID uint64                     | (Account, error) |
+| GetAccountByPK | Get account by public key | publicKey string                  | (Account, error) |
+| UpdateAccount  | Modify account config     | ...UpdateOption                   | error            |
+
+#### Farm Operations
+
+| Method      | Description              | Parameters                               | Returns         |
+|-------------|------------------------|--------------------------------------------|-----------------|
+| CreateFarm  | Register new farm      | name string, twinID uint64, dedicated bool | (uint64, error) |
+| UpdateFarm  | Modify farm properties | farmID uint64, ...UpdateOption             | error           |
+| GetFarm     | Get farm by ID         | farmID uint64                              | (Farm, error)   |
+| ListFarms   | List farms             | ...ListOption                              | ([]Farm, error) |
+
+#### Node Operations
+
+| Method          | Description           | Parameters                                     | Returns         |
+|-----------------|-----------------------|------------------------------------------------|-----------------|
+| RegisterNode    | Register new node     | farmID uint64, twinID uint64, interfaces []Interface, location Location, resources Resources, serial string, secureBoot bool, virtualized bool | (uint64, error) |
+| UpdateNode      | Modify node config    | ...UpdateOption                                | error           |
+| GetNode         | Get node by node ID   | nodeID uint64                                  | (Node, error)   |
+| GetNodeByTwinID | Get node by twin ID   | twinID uint64                                  | (Node, error)   |
+| ListNodes       | List nodes            | ...ListOption                                  | ([]Node, error) |
+| ReportUptime    | Submit uptime metrics | report UptimeReport                            | error           |
+
+## Installation
+
+```bash
+go get github.com/threefoldtech/tfgrid4-sdk-go/node-registrar/client@f4f5e1fbff97cd685f6f99db265d4b2954e39f90
+```
+
+## Usage
+
+### Initialize Client
+
+```go
+import (
+  "github.com/threefoldtech/tfgrid4-sdk-go/node-registrar/client"
+)
+
+func main() {
+  registrarURL := "https://registrar.dev4.grid.tf/v1"
+
+  s := make([]byte, 32)
+  _, err := rand.Read(s)
+  if err != nil {
+    log.Fatal().Err(err).Send()
+  }
+  seed = hex.EncodeToString(s)
+  fmt.Println("New Seed (Hex):", seed)
+  
+  cli, err := client.NewRegistrarClient(registrarURL, s)
+  if err != nil {
+    panic(err)
+  }
+}
+```
+
+### Get Zos Version
+
+```go
+ version, err := c.GetZosVersion()
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to set registrar version")
+ }
+
+ log.Info().Msgf("%s version is: %+v", network, version)
+```
+
+### Set Zos Version (ONLY for network admin)
+
+```go
+ err := c.SetZosVersion("v0.1.8", true)
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to set registrar version")
+ }
+
+ log.Info().Msg("version is updated successfully")
+```
+
+### Create Account
+
+```go
+ account, err := c.CreateAccount(relays, rmbEncKey)
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to create new account on registrar")
+ }
+
+log.Info().Uint64("twinID", account.TwinID).Msg("account created successfully")
+
+```
+
+### Get Account
+
+#### Get Account By Public Key
+
+```go
+ account, err := c.GetAccountByPK(pk)
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to get account from registrar")
+ }
+ log.Info().Any("account", account).Send()
+```
+
+#### Get Account By Twin ID
+
+```go
+ account, err := c.GetAccount(id)
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to get account from registrar")
+ }
+ log.Info().Any("account", account).Send()
+
+```
+
+### Update Account
+
+```go
+ err := c.UpdateAccount(client.UpdateAccountWithRelays(relays), client.UpdateAccountWithRMBEncKey(rmbEncKey))
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to get account from registrar")
+ }
+ log.Info().Msg("account updated successfully")
+```
+
+### Ensure Account
+
+```go
+ account, err := c.EnsureAccount(relays, rmbEncKey)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to ensure account account from registrar")
+ }
+ log.Info().Any("account", account).Send()
+```
+
+### Create Farm
+
+```go
+ id, err := c.CreateFarm(farmName, twinID, false)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to create new farm on registrar")
+ }
+
+ log.Info().Uint64("farmID", id).Msg("farm created successfully")
+```
+
+### Get Farm
+
+```go
+ farm, err := c.GetFarm(id)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to get farm from registrar")
+ }
+ log.Info().Any("farm", farm).Send()
+```
+
+### List Farms
+
+```go
+ farms, err := c.ListFarms(ListFarmWithName(name))
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to list farms from registrar")
+ }
+ log.Info().Any("farm", farms[0]).Send()
+```
+
+### Update Farm
+
+```go
+ err := c.UpdateFarm(farmID, client.UpdateFarmWithName(name))
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to get farm from registrar")
+ }
+ log.Info().Msg("farm updated successfully")
+```
+
+### Register a Node
+
+```go
+ id, err := c.RegisterNode(farmID, twinID, interfaces, location, resources, serialNumber, secureBoot, virtualized)
+ if err != nil {
+   log.Fatal().Err(err).Msg("failed to register a new node on registrar")
+ }
+ log.Info().Uint64("nodeID", id).Msg("node registered successfully")
+```
+
+### Get Node
+
+#### Get Node With Node ID
+
+```go
+ node, err := c.GetNode(id)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to get node from registrar")
+ }
+ log.Info().Any("node", node).Send()
+```
+
+#### Get Node With Twin ID
+
+```go
+ node, err := c.GetNodeByTwinID(id)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to get node from registrar")
+ }
+ log.Info().Any("node", node).Send()
+```
+
+### List Nodes
+
+```go
+ nodes, err := c.ListNodes(client.ListNodesWithFarmID(id))
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to list nodes from registrar")
+ }
+ log.Info().Any("node", node[0]).Send()
+```
+
+### Update Node
+
+```go
+ err := c.UpdateNode(client.UpdateNodesWithLocation(location))
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to update node location on the registrar")
+ }
+ log.Info().Msg("node updated successfully")
+```
+
+### Update Node Uptime
+
+```go
+ err := c.ReportUptime(report)
+ if err != nil {
+  log.Fatal().Err(err).Msg("failed to update node uptime in the registrar")
+ }
+ log.Info().Msg("node uptime is updated successfully")
+```