View source for HowTo Integrate NodeCore with a Service

See: [[Developer Guide]]

This article assumes familiarity with NodeCore, namely you can run a full node, NC_CLI, etc..

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== Overview ==

NodeCore can be integrated into other applications. This page offers prescriptive guidance

The easiest development path is to run a full node and expose functionality through the API (GRPC or HTTP).

See [[NodeCore Operations]]

== Connect to NodeCore ==

External services can connect to NodeCore via grpc or http. This allows automation for almost any command available in the [[NodeCore CommandLine]], such as viewing blocks or sending transactions.

=== GRPC ===

See: [[GRPC]] for details and code samples to connect via GRPC.

=== HTTP ===

Available in NodeCore 0.4.5 or greater.

See: [[NodeCore_HTTP_API]]

== Configure NodeCore ==

When running an application node, you may want to configure several options:

* Enabled remote connections via IP whitelisting
* Specify peer connections via max count of peers and which peers

<pre>
#NodeCore Configuration

#allow grpc connectivity via whitelisting
rpc.bind.address=0.0.0.0
rpc.whitelist.addresses=111.111.111.111,111.111.111.111

#limit the max peers
peer.max.count=12

#disable bootstrap peers
peer.bootstrap.enabled=false
peer.external.hosts=111.111.111.111\:7500,111.111.111.111\:7500
</pre>

See: [[nodecore.properties]]

== Securing NodeCore ==

There are multiple layers of security:

{| class="wikitable"
! Security Feature
! Description
! See More
|-
| IP WhiteListing
| The client's IP must be whitelisted in order to connect to a remote node
| [[NodeCore Networking]]
|-
| Wallet encryption
| A wallet file is encrypted. This can be managed through grpc commands
| [[Wallet Encryption]]
|-
| Multisig addresses
| The wallet takes multiple signatures, so the system remains safe despite a compromised wallet
| [[How to Submit Multisig Tx]]
|-
| Offline address creation
| A wallet can be created without any network connectivity
| https://github.com/VeriBlock/offline-wallet-cli
|-
| gRPC password (with TLS)
| The GRPC connection has a password, and the communication channel is encryped
| [[NodeCore_Networking#Passwords]]
|}

== Helpful Links ==

See: [[Developer Guide]] for code samples, environments, and a list of specifications.

See: [[Offline_Wallet_CLI]] for an offline wallet CLI