Version: 0.1

Quickstart

Description

In this section, you will find a tutorial on how to set up a simple case of use for foods batches traceability using TAPLE technology by means of scripts.

Setting Up Environment

Before we begin, let's prepare the environment:

Revise that you meet the requirements.

Let's clone the Taple Client repository where the scripts we will use later are stored:

$ git clone -b release-0.1 https://github.com/opencanarias/taple-client.git ~/taple-client

We move to the folder where the scripts are located:
```
$ cd ~/taple-client/examples/quickstart/scripts/
```

Running a 3-node network

Launching first node

Before launching any TAPLE node, we need cryptographic material to identify the node, to accomplish this, before each launch, we need to run taple-keygen, getting the material we need:

Node 0. Getting cryptographic material
$ taple-keygen ed25519
keygen
["taple-keygen", "ed25519"]
PRIVATE KEY ED25519 (HEX): 01e1ad914f378fe4b52b2b2bea52aded744e1a3a056fec7a436a5bf0226b9d6e
CONTROLLER ID ED25519: EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y
PeerID: 12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX

We will save these values for later. For now, let's raise a TAPLE node by executing the script launch_node.sh:

Node 0. Run script

$ ./launch_node.sh

First, it will prompt for an integer. This number must be unique and will be used to determine the HTTP and P2P port that will be assigned.

Node 0. Input Number ID
Enter a number to identify the node that will be deployed: 0

Next, it will prompt for a secret key . This value is the same obtained previously by running taple-keygen and will be the one we will enter.

Node 0. Giving cryptographic material

Requesting cryptographic material.
Enter secret key: 01e1ad914f378fe4b52b2b2bea52aded744e1a3a056fec7a436a5bf0226b9d6e

Now it's the turn for the known nodes that it will use as bootstrap nodes. Since this is our first node, we will not enter anything and will proceed by pressing ENTER.

Node 0. Setting known nodes
Requesting known nodes.
Enter address of a known node (leave empty to stop requesting):
<STOP>

With this, we will have all the necessary parameters to run TAPLE.

Node 0. Launching node
[2023-01-17T16:25:24Z INFO  taple_client] AppSettings { network: NetworkSettings { p2p_port: 11000, addr: "/ip4/0.0.0.0/tcp", known_nodes: [] }, node: NodeSettings { key_derivator: Ed25519, secret_key: Some("01e1ad914f378fe4b52b2b2bea52aded744e1a3a056fec7a436a5bf0226b9d6e"), seed: None, digest_derivator: Blake3_256, replication_factor: 0.25, timeout: 3000, passvotation: 0, dev_mode: false }, database: DatabaseSettings { path: "/tmp/data0" }, http_addr: "0.0.0.0", http_port: 10000, x_api_key: None, swagger_ui: false }
[2023-01-17T16:25:24Z INFO  taple_client] Controller ID: EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y
[2023-01-17T16:25:24Z INFO  network::network] RED: "/ip4/192.168.1.46/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"
[2023-01-17T16:25:24Z INFO  network::network] RED: "/ip4/25.33.212.160/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"
[2023-01-17T16:25:24Z INFO  network::network] RED: "/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"
[2023-01-17T16:25:24Z INFO  network::network] RED: "/ip4/172.17.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"

Launching second and third node

We will repeat previous steps. Since we are going to raise two nodes, we will run taple-keygen and launch_node.sh twice.

Lets start with the second node. First we get the cryptographic material:

Node 1. Getting cryptographic material for Node 1
$ taple-keygen ed25519
keygen
["taple-keygen", "ed25519"]
PRIVATE KEY ED25519 (HEX): 0a17286d8dd6a234b5b6140aeed93eb150cf4c24a1dfd14df6325d4c7401f015
CONTROLLER ID ED25519: EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E
PeerID: 12D3KooWCMc5Lp51YC9chjJ47b6P7puc5pXjKhqKAZpWHtQ9agvk

Later, following the same pattern described before, we will launch the second node, with the difference that now the address to the known node is to the first one deployed:

Node 0 Address
...
"/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"
...

Node 1. Launching Node 1
$ ./launch_node.sh 
0.1: Pulling from opencanarias/taple-client
Digest: sha256:d3382b5407d6a494f09fabec7d17fb61066751605020d014528fc86548687b8d
Status: Image is up to date for opencanarias/taple-client:0.1
docker.io/opencanarias/taple-client:0.1
Image downloaded successfully.

Enter a number to identify the node that will be deployed: 1

Requesting cryptographic material.
Enter secret key: 0a17286d8dd6a234b5b6140aeed93eb150cf4c24a1dfd14df6325d4c7401f015
Requesting known nodes.
Enter address of known node (leave empty to stop requesting):/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX
Enter address of known node (leave empty to stop requesting):
<STOP>

[2023-01-17T16:26:17Z INFO  taple_client] AppSettings { network: NetworkSettings { p2p_port: 11001, addr: "/ip4/0.0.0.0/tcp", known_nodes: ["/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"] }, node: NodeSettings { key_derivator: Ed25519, secret_key: Some("0a17286d8dd6a234b5b6140aeed93eb150cf4c24a1dfd14df6325d4c7401f015"), seed: None, digest_derivator: Blake3_256, replication_factor: 0.25, timeout: 3000, passvotation: 0, dev_mode: false }, database: DatabaseSettings { path: "/tmp/data1" }, http_addr: "0.0.0.0", http_port: 10001, x_api_key: None, swagger_ui: false }
[2023-01-17T16:26:17Z INFO  taple_client] Controller ID: EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E
[2023-01-17T16:26:17Z INFO  network::network] RED: "/ip4/172.17.0.1/tcp/11001/p2p/12D3KooWCMc5Lp51YC9chjJ47b6P7puc5pXjKhqKAZpWHtQ9agvk"
[2023-01-17T16:26:17Z INFO  network::network] RED: "/ip4/192.168.1.46/tcp/11001/p2p/12D3KooWCMc5Lp51YC9chjJ47b6P7puc5pXjKhqKAZpWHtQ9agvk"
[2023-01-17T16:26:17Z INFO  network::network] RED: "/ip4/127.0.0.1/tcp/11001/p2p/12D3KooWCMc5Lp51YC9chjJ47b6P7puc5pXjKhqKAZpWHtQ9agvk"
[2023-01-17T16:26:17Z INFO  network::network] RED: "/ip4/25.33.212.160/tcp/11001/p2p/12D3KooWCMc5Lp51YC9chjJ47b6P7puc5pXjKhqKAZpWHtQ9agvk"

We repeat the same process for the third node:

Node 2. Getting cryptographic material for Node 2
$ taple-keygen ed25519
keygen
["taple-keygen", "ed25519"]
PRIVATE KEY ED25519 (HEX): 09319f4332335e96e3335b6970c5834fe946d87211df47eda63eef8494e6513b
CONTROLLER ID ED25519: EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E
PeerID: 12D3KooWKvk51kTNB9ARdACDpsohCX3aaBA4Z2tND4FXQwuSb95S

Node 2. Launching Node 2
$ ./launch_node.sh 
0.1: Pulling from opencanarias/taple-client
Digest: sha256:d3382b5407d6a494f09fabec7d17fb61066751605020d014528fc86548687b8d
Status: Image is up to date for opencanarias/taple-client:0.1
docker.io/opencanarias/taple-client:0.1
Image downloaded successfully.

Enter a number to identify the node that will be deployed: 2

Requesting cryptographic material.
Enter secret key: 09319f4332335e96e3335b6970c5834fe946d87211df47eda63eef8494e6513b
Requesting known nodes.
Enter address of known node (leave empty to stop requesting):/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX
Enter address of known node (leave empty to stop requesting):
<STOP>

[2023-01-17T16:26:45Z INFO  taple_client] AppSettings { network: NetworkSettings { p2p_port: 11002, addr: "/ip4/0.0.0.0/tcp", known_nodes: ["/ip4/127.0.0.1/tcp/11000/p2p/12D3KooWC5kULse9cPS9vhKfmntwjcLnde6RqHjbqYn4wFj8yxfX"] }, node: NodeSettings { key_derivator: Ed25519, secret_key: Some("09319f4332335e96e3335b6970c5834fe946d87211df47eda63eef8494e6513b"), seed: None, digest_derivator: Blake3_256, replication_factor: 0.25, timeout: 3000, passvotation: 0, dev_mode: false }, database: DatabaseSettings { path: "/tmp/data2" }, http_addr: "0.0.0.0", http_port: 10002, x_api_key: None, swagger_ui: false }
[2023-01-17T16:26:45Z INFO  taple_client] Controller ID: EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E
[2023-01-17T16:26:45Z INFO  network::network] RED: "/ip4/172.17.0.1/tcp/11002/p2p/12D3KooWKvk51kTNB9ARdACDpsohCX3aaBA4Z2tND4FXQwuSb95S"
[2023-01-17T16:26:45Z INFO  network::network] RED: "/ip4/25.33.212.160/tcp/11002/p2p/12D3KooWKvk51kTNB9ARdACDpsohCX3aaBA4Z2tND4FXQwuSb95S"
[2023-01-17T16:26:45Z INFO  network::network] RED: "/ip4/192.168.1.46/tcp/11002/p2p/12D3KooWKvk51kTNB9ARdACDpsohCX3aaBA4Z2tND4FXQwuSb95S"
[2023-01-17T16:26:45Z INFO  network::network] RED: "/ip4/127.0.0.1/tcp/11002/p2p/12D3KooWKvk51kTNB9ARdACDpsohCX3aaBA4Z2tND4FXQwuSb95S"

We can check everything is working fine by checking that our three terminals are up and running our three TAPLE nodes.

Create a governance and scheme

The next step would be to create a governance. Since we are working with three nodes, we will define three members inside the governance. Each one being a validator of the subject , because of that, in policies, we are assigning them as validators with a quorum of 50% so we only need the signature of two of the three nodes to accept it inside the ledger. Also, to model the use case, we are defining an schema so our subject will store three properties: temperature, location and batch .

In the next code block we can see our governance :

Complete Governance JSON

{
    "members": [ 
    {
        "id": "Company-0",
        "tags": {},
        "description": "Headquarters in 0",
        "key": <ControllerID of node-0>
    },
    {
        "id": "Company-1",
        "tags": {},
        "description": "Headquarters in 1",
        "key": <ControllerID of node-1>
    },
    {
        "id": "Company-2",
        "tags": {},
        "description": "Headquarters in 2",
        "key": <ControllerID of node-2>
    }
    ],
    "schemas": [
        {
            "id": "Test",
            "tags": {},
            "content": {
                "type": "object",
                "additionalProperties": false,
                "required": [
                    "temperature",
                    "location",
                    "batch"
                ],
                "properties": {
                    "temperature": {"type": "integer"},
                    "location": {"type": "string" },
                    "batch": {
                        "type": "object",
                        "additionalProperties": false,
                        "required": [ "weight", "origin" ],
                        "properties": {
                            "weight": {"type": "number", "minimum": 0},
                            "origin": {"type": "string"}
                        }
                    }
                }
            }
        }
    ],
    "policies": [
        {
            "id": "governance",
            "validation": {
                "quorum": 0.5,
                "validators": [
                    <ControllerID of node-0>,
                    <ControllerID of node-1>,
                    <ControllerID of node-2>
                ]
            },
            "approval": {
                "quorum": 0.5,
                "approvers": [
                    <ControllerID of node-0>,
                    <ControllerID of node-1>,
                    <ControllerID of node-2>
                ]
            },
            "invokation": {
                "owner": { 
                    "allowance": true,
                    "approvalRequired": false
                },
                "set": {
                    "allowance": false,
                    "approvalRequired": false,
                    "invokers": []
                },
                "all": {
                    "allowance": false,
                    "approvalRequired": false
                },
                "external": {
                    "allowance": false,
                    "approvalRequired": false
                }
            }
        },
        {
            "id": "Test",
            "validation": {
                "quorum": 0.5,
                "validators": [
                    <ControllerID of node-0>,
                    <ControllerID of node-1>,
                    <ControllerID of node-2>
                ]
            },
            "approval": {
                "quorum": 0,
                "approvers": []
            },
            "invokation": {
                "owner": {
                    "allowance": true,
                    "approvalRequired": false
                },
                "set": {
                    "allowance": false,
                    "approvalRequired": false,
                    "invokers": []
                },
                "all": {
                    "allowance": false,
                    "approvalRequired": false
                },
                "external": {
                    "allowance": false,
                    "approvalRequired": false
                }
            }
        }
    ]
}

This governance is created by using create_governance.sh. When we run it, script will be asking us for:

Controller ids of the members.For the example they were:

Controller id for Node 0
...
[2023-01-17T16:25:24Z INFO  taple_client] Controller ID: EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y
....

Controller id for Node 1
...
[2023-01-17T16:26:17Z INFO  taple_client] Controller ID: EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E
...

Controller id for Node 2
...
[2023-01-17T16:26:45Z INFO  taple_client] Controller ID: EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E
...

Number ID from the node we want to create the governance. For the example it will be number 0.

We introduce it you will have an output similar to the following:

Executing create_governance.sh for Node 0
$ ./create_governance.sh 
Requesting controllerID.
Enter the controllerID of the node that will be inserted (empty to exit): EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y
Enter the controllerID of the node that will be inserted (empty to exit): EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E
Enter the controllerID of the node that will be inserted (empty to exit): EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E
Enter the controllerID of the node that will be inserted (empty to exit): 
<STOP>

Requesting HTTP PORT.
Enter the number ID of the NODE where request for governance creation will be sent: 0

{"request":{"Create":{"governance_id":"","schema_id":"governance","namespace":"","payload":{"Json":"{\"members\":[{\"description\":\"Headquarters in 1\",\"id\":\"Company-1\",\"key\":\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"tags\":{}},{\"description\":\"Headquarters in 2\",\"id\":\"Company-2\",\"key\":\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"tags\":{}},{\"description\":\"Headquarters in 3\",\"id\":\"Company-3\",\"key\":\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\",\"tags\":{}}],\"policies\":[{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"governance\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}},{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"Test\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}}],\"schemas\":[{\"content\":{\"additionalProperties\":false,\"properties\":{\"batch\":{\"additionalProperties\":false,\"properties\":{\"origin\":{\"type\":\"string\"},\"weight\":{\"minimum\":0,\"type\":\"number\"}},\"required\":[\"weight\",\"origin\"],\"type\":\"object\"},\"location\":{\"type\":\"string\"},\"temperature\":{\"type\":\"integer\"}},\"required\":[\"temperature\",\"location\",\"batch\"],\"type\":\"object\"},\"id\":\"Test\",\"tags\":{}}]}"}}},"request_id":"JQr8oW0CqCoUNWtU-CYBcK5Wn6s_T3We0oleOzls1NzU","timestamp":1673972899640,"subject_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":0}

If everything worked correctly we should see a similar output in the terminals of our nodes:

Node-0 Output. Governance Owner
...
[2023-01-17T16:28:19Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y event 0 signed
[2023-01-17T16:28:19Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y created
[2023-01-17T16:28:19Z INFO  rest::handlers] data: Ok(RequestData { request: Create(CreateRequest { governance_id: DigestIdentifier { derivator: Blake3_256, digest: [] }, schema_id: "governance", namespace: "", payload: Json("{\"members\":[{\"description\":\"Headquarters in 1\",\"id\":\"Company-1\",\"key\":\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"tags\":{}},{\"description\":\"Headquarters in 2\",\"id\":\"Company-2\",\"key\":\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"tags\":{}},{\"description\":\"Headquarters in 3\",\"id\":\"Company-3\",\"key\":\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\",\"tags\":{}}],\"policies\":[{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"governance\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}},{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"Test\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}}],\"schemas\":[{\"content\":{\"additionalProperties\":false,\"properties\":{\"batch\":{\"additionalProperties\":false,\"properties\":{\"origin\":{\"type\":\"string\"},\"weight\":{\"minimum\":0,\"type\":\"number\"}},\"required\":[\"weight\",\"origin\"],\"type\":\"object\"},\"location\":{\"type\":\"string\"},\"temperature\":{\"type\":\"integer\"}},\"required\":[\"temperature\",\"location\",\"batch\"],\"type\":\"object\"},\"id\":\"Test\",\"tags\":{}}]}") }), request_id: "JQr8oW0CqCoUNWtU-CYBcK5Wn6s_T3We0oleOzls1NzU", timestamp: 1673972899640, subject_id: Some("JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y"), sn: Some(0) })

Node-1 Output.
...
[2023-01-17T16:28:19Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y event 0 signed
[2023-01-17T16:28:19Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y event 0 signed

Node-2 Output.
...
[2023-01-17T16:28:22Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y event 0 signed
[2023-01-17T16:28:22Z INFO  protocol::command_head_manager::inner_manager] Subject JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y event 0 signed

Create a subject

To create a subject, we will use the create_subject.sh script. When running this script, we will be prompted for the following information:

The number ID from the node we want to create the subject. For the example it will be number 2.
The governance ID of the governance in which we want to create the subject. It is specified at the output's end of the previous script executed. For the example it was:
```
... "subject_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y" ...
```
caution
The subject_id you will get will differ from the one displayed in the example.
The temperature at which the product is stored.
The location where the product is located.
The weight of the product.
The origin of the product.

Executing create_subject.sh for Node 2
    $ ./create_subject.sh 
    Requesting port.
    Enter the number ID of the node on which you want to create the subject: 2

    Requesting governance.
    Enter the ID of the governance in which you want to create the subject (example: J1ZZ57u4PpvTl3apJ0BQrRFrQ1ftMC4XXg-kd9CkZC3E): JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y

    Requesting product temperature. 
    Enter the temperature at which the product is stored (example: 30): 20

    Requesting product location. 
    Enter the location where the product is located (example: Spain): Portugal

    Requesting product weight.
    Enter product weight (example: 33): 30

    Requesting product origin. 
    Enter the product origin (example: Spain): France

    Response: {"request":{"Create":{"governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","schema_id":"Test","namespace":"","payload":{"Json":"{\"batch\":{\"origin\":\"France\",\"weight\":30},\"location\":\"Portugal\",\"temperature\":20}"}}},"request_id":"JWT_FVf79PSoeorsV4Hqekn44TXMtME_F2azE_82aGH8","timestamp":1673973038997,"subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ","sn":0}

If everything went correctly, you will have an output similar to the following in your terminals running the nodes:

Node-0 Output
...
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 0 signed
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 0 signed

Node-1 Output
...
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 0 signed
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 0 signed

Node-2 Output. Subject Owner
...
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 0 signed
[2023-01-17T16:30:39Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ created
[2023-01-17T16:30:39Z INFO  rest::handlers] data: Ok(RequestData { request: Create(CreateRequest { governance_id: DigestIdentifier { derivator: Blake3_256, digest: [173, 128, 43, 83, 78, 109, 192, 178, 199, 178, 217, 40, 211, 32, 43, 238, 64, 1, 133, 206, 58, 33, 17, 153, 156, 150, 21, 202, 84, 83, 103, 198] }, schema_id: "Test", namespace: "", payload: Json("{\"batch\":{\"origin\":\"France\",\"weight\":30},\"location\":\"Portugal\",\"temperature\":20}") }), request_id: "JWT_FVf79PSoeorsV4Hqekn44TXMtME_F2azE_82aGH8", timestamp: 1673973038997, subject_id: Some("JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ"), sn: Some(0) })

Create an event

To create an event, we will use the create_event.sh script. When running this script, we will be prompted for the following information:

The number ID from the node we want to create the subject. For the example it will be number 2.
The subject ID of the subject to which we want to create an event. It's specified at the output's end of the previous executed script.For the example it was:
```
    ... "subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ"...
```
caution
The subject_id you will get will differ from the one displayed in the example.
The temperature at which the product is stored.
The location where the product is located.
The weight of the product.
The origin of the product.

Creating event from Node 2
    $ ./create_event.sh 
    Requesting port.
    Enter the number ID of the node from which you want to perform the event: 2

    Requesting subject. 
    Enter the ID of the subject to which you want to perform an event (example: Jjvs-Kk5FHRVwfktXEiH7y12CYZmV3sSBEyxwzECVA9Y): JPnjBHk35OmYM-iljWlrv0Xd7a6UzdavM6lZlwG6LkEI

    Requesting product temperature. 
    Enter the temperature at which the product is stored (example: 30): 7

    Requesting product location: 
    Enter the location where the product is located (example: Spain): Spain

    Requesting product weight. 
    Enter product weight (example: 33): 30

    Requesting product origin. 
    Enter the product origin (example: Spain): Spain

    Response:
    {"request":{"State":{"subject_id":"JZLfIMPpzfcvEky_Inlzt1EpIGqokvNOp1D6-SrRp78E","payload":{"Json":"{\"batch\":{\"origin\":\"Spain\",\"weight\":33},\"location\":\"Spain\",\"temperature\":30}"}}},"request_id":"JubI7DkNETG32kzNVq3Qsv6kIA4_NTE3NazPiEKJwtLI","timestamp":1673892304209,"subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ","sn":1}

If everything went correctly, you will have an output similar to the following in your terminals running the nodes:

Node-0 Output
...
[2023-01-17T16:33:13Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 1 signed

Node-1 Output
...
[2023-01-17T16:33:13Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 1 signed

Node-2 Output. Subject Owner
...
[2023-01-17T16:33:13Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 1 signed
[2023-01-17T16:33:13Z INFO  protocol::command_head_manager::inner_manager] Subject JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ event 1 created
[2023-01-17T16:33:13Z INFO  rest::handlers] data: Ok(RequestData { request: State(StateRequest { subject_id: DigestIdentifier { derivator: Blake3_256, digest: [62, 120, 193, 30, 77, 249, 58, 102, 12, 250, 41, 99, 90, 90, 239, 209, 119, 123, 107, 165, 51, 117, 171, 204, 234, 86, 101, 192, 110, 139, 144, 66] }, payload: Json("{\"batch\":{\"origin\":\"Spain\",\"weight\":30},\"location\":\"Spain\",\"temperature\":7}") }), request_id: "JSbYT3cgRgT8Svh8V3sDmxn01QAlFeDmg00A9bmMv6vY", timestamp: 1673969593828, subject_id: Some("JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ"), sn: Some(1) })

Create more subjects

Until now we have created a subject that model a food batch . TAPLE allows us to create more subjects dynamically. Lets create more subjects by repeating steps from "Create a subject":

Create subject:

Creating subject from Node 1
$ ./create_subject.sh 
Requesting port.
Enter the number ID of the node on which you want to create the subject: 1

Requesting governance.
Enter the ID of the governance in which you want to create the subject (example: J1ZZ57u4PpvTl3apJ0BQrRFrQ1ftMC4XXg-kd9CkZC3E): JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y

Requesting product temperature.
Enter the temperature at which the product is stored (example: 30): 30

Requesting product location.
Enter the location where the product is located (example: Spain): Spain

Requesting product weight.
Enter product weight (example: 33): 33

Requesting product origin.
Enter the product origin (example: Spain): Spain

Response: {"request":{"Create":{"governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","schema_id":"Test","namespace":"","payload":{"Json":"{\"batch\":{\"origin\":\"Spain\",\"weight\":33},\"location\":\"Spain\",\"temperature\":30}"}}},"request_id":"JSohR7uWstwQd5j4hx8hDccb3FKN_hnmCoGHrm79h_wk","timestamp":1673973188427,"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","sn":0}

Update subject state:

Updating subject from Node 1
$ ./create_event.sh 
Requesting port.
Enter the number ID of the node from which you want to perform the event: 1

Requesting subject.
Enter the ID of the subject to which you want to perform an event (example: Jjvs-Kk5FHRVwfktXEiH7y12CYZmV3sSBEyxwzECVA9Y): J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4

Requesting product temperature.
Enter the temperature at which the product is stored (example: 30): 0

Requesting product location.
Enter the location where the product is located (example: Spain): England

Requesting product weight.
Enter product weight (example: 33): 0

Requesting product origin.
Enter the product origin (example: Spain): Spain

Response:
{"request":{"State":{"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","payload":{"Json":"{\"batch\":{\"origin\":\"Spain\",\"weight\":0},\"location\":\"England\",\"temperature\":0}"}}},"request_id":"JRllKPd-4ONa7iDTEVUvLlNVMsRpAQjIRQTasq7RbdEI","timestamp":1673973254635,"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","sn":1}

Check node terminals output:

Node-0 Output
...
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 0 signed
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 0 signed
[2023-01-17T16:36:35Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 1 signed

Node-1 Output. Subject Owner
...
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 0 signed
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 created
[2023-01-17T16:35:39Z INFO  rest::handlers] data: Ok(RequestData { request: Create(CreateRequest { governance_id: DigestIdentifier { derivator: Blake3_256, digest: [173, 128, 43, 83, 78, 109, 192, 178, 199, 178, 217, 40, 211, 32, 43, 238, 64, 1, 133, 206, 58, 33, 17, 153, 156, 150, 21, 202, 84, 83, 103, 198] }, schema_id: "Test", namespace: "", payload: Json("{\"batch\":{\"origin\":\"Spain\",\"weight\":33},\"location\":\"Spain\",\"temperature\":30}") }), request_id: "JSohR7uWstwQd5j4hx8hDccb3FKN_hnmCoGHrm79h_wk", timestamp: 1673973188427, subject_id: Some("J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4"), sn: Some(0) })
[2023-01-17T16:36:35Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 1 signed
[2023-01-17T16:36:35Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 1 created
[2023-01-17T16:36:35Z INFO  rest::handlers] data: Ok(RequestData { request: State(StateRequest { subject_id: DigestIdentifier { derivator: Blake3_256, digest: [62, 120, 193, 30, 77, 249, 58, 102, 12, 250, 41, 99, 90, 90, 239, 209, 119, 123, 107, 165, 51, 117, 171, 204, 234, 86, 101, 192, 110, 139, 144, 66] }, payload: Json("{\"batch\":{\"origin\":\"Spain\",\"weight\":30},\"location\":\"Spain\",\"temperature\":7}") }), request_id: "JRllKPd-4ONa7iDTEVUvLlNVMsRpAQjIRQTasq7RbdEI", timestamp: 1673973254635, subject_id: Some("J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4"), sn: Some(1) })

Node-2 Output.
...
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 0 signed
[2023-01-17T16:35:39Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 0 signed
[2023-01-17T16:36:35Z INFO  protocol::command_head_manager::inner_manager] Subject J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4 event 1 signed

Display subjects of a node

This step is useful to validate that the network is working, and everybody has the same copy of the microledger. To visualize the subjects contained in a node, we can make use of the get_subjects.sh script, which will ask us for the port of the node we want to see the subjects of.

If everything went correctly, you will have an output similar to the following:

get_subjects.sh . Node 0
    $ ./get_subjects.sh
    Requesting port. 
    Enter the number ID of the node you want to check subjects on: 0

    Response:
    [{"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":1,"public_key":"EeYrJkISQP2RallGct7HXhqAxSo4LRnMtnW0vUWodoPA","namespace":"","schema_id":"Test","owner":"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E","properties":"{\"batch\":{\"origin\":\"Spain\",\"weight\":0},\"location\":\"England\",\"temperature\":0}"},{"subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":0,"public_key":"EZxOq58lef5BIoC-ji4KZjkzjqxLJe6z2DGyAGLNmqqw","namespace":"","schema_id":"Test","owner":"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E","properties":"{\"batch\":{\"origin\":\"France\",\"weight\":30},\"location\":\"Portugal\",\"temperature\":20}"},{"subject_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","governance_id":"","sn":0,"public_key":"EV7y-hRryeYuzW1FCjuwSyuUe97ojiWzDiAn-xM1Elmc","namespace":"","schema_id":"governance","owner":"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y","properties":"{\"members\":[{\"description\":\"Headquarters in 1\",\"id\":\"Company-1\",\"key\":\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"tags\":{}},{\"description\":\"Headquarters in 2\",\"id\":\"Company-2\",\"key\":\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"tags\":{}},{\"description\":\"Headquarters in 3\",\"id\":\"Company-3\",\"key\":\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\",\"tags\":{}}],\"policies\":[{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"governance\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}},{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"Test\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}}],\"schemas\":[{\"content\":{\"additionalProperties\":false,\"properties\":{\"batch\":{\"additionalProperties\":false,\"properties\":{\"origin\":{\"type\":\"string\"},\"weight\":{\"minimum\":0,\"type\":\"number\"}},\"required\":[\"weight\",\"origin\"],\"type\":\"object\"},\"location\":{\"type\":\"string\"},\"temperature\":{\"type\":\"integer\"}},\"required\":[\"temperature\",\"location\",\"batch\"],\"type\":\"object\"},\"id\":\"Test\",\"tags\":{}}]}"}]

get_subjects.sh . Node 1
    $ ./get_subjects.sh
    Requesting port. 
    Enter the number ID of the node you want to check subjects on: 1

    Response:
    [{"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":1,"public_key":"EeYrJkISQP2RallGct7HXhqAxSo4LRnMtnW0vUWodoPA","namespace":"","schema_id":"Test","owner":"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E","properties":"{\"batch\":{\"origin\":\"Spain\",\"weight\":0},\"location\":\"England\",\"temperature\":0}"},{"subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":0,"public_key":"EZxOq58lef5BIoC-ji4KZjkzjqxLJe6z2DGyAGLNmqqw","namespace":"","schema_id":"Test","owner":"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E","properties":"{\"batch\":{\"origin\":\"France\",\"weight\":30},\"location\":\"Portugal\",\"temperature\":20}"},{"subject_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","governance_id":"","sn":0,"public_key":"EV7y-hRryeYuzW1FCjuwSyuUe97ojiWzDiAn-xM1Elmc","namespace":"","schema_id":"governance","owner":"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y","properties":"{\"members\":[{\"description\":\"Headquarters in 1\",\"id\":\"Company-1\",\"key\":\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"tags\":{}},{\"description\":\"Headquarters in 2\",\"id\":\"Company-2\",\"key\":\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"tags\":{}},{\"description\":\"Headquarters in 3\",\"id\":\"Company-3\",\"key\":\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\",\"tags\":{}}],\"policies\":[{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"governance\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}},{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"Test\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}}],\"schemas\":[{\"content\":{\"additionalProperties\":false,\"properties\":{\"batch\":{\"additionalProperties\":false,\"properties\":{\"origin\":{\"type\":\"string\"},\"weight\":{\"minimum\":0,\"type\":\"number\"}},\"required\":[\"weight\",\"origin\"],\"type\":\"object\"},\"location\":{\"type\":\"string\"},\"temperature\":{\"type\":\"integer\"}},\"required\":[\"temperature\",\"location\",\"batch\"],\"type\":\"object\"},\"id\":\"Test\",\"tags\":{}}]}"}]

get_subjects.sh . Node 2
    $ ./get_subjects.sh
    Requesting port. 
    Enter the number ID of the node you want to check subjects on: 2

    Response:
    [{"subject_id":"J1_Uw6dWAMmOpK6uJxJ0gmXpr8x-v6Of6tFDxQUX5Eu4","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":1,"public_key":"EeYrJkISQP2RallGct7HXhqAxSo4LRnMtnW0vUWodoPA","namespace":"","schema_id":"Test","owner":"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E","properties":"{\"batch\":{\"origin\":\"Spain\",\"weight\":0},\"location\":\"England\",\"temperature\":0}"},{"subject_id":"JOG5n5ajSAizYBD78py6CqzgYSBz49w6w569SztPnNkQ","governance_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","sn":0,"public_key":"EZxOq58lef5BIoC-ji4KZjkzjqxLJe6z2DGyAGLNmqqw","namespace":"","schema_id":"Test","owner":"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E","properties":"{\"batch\":{\"origin\":\"France\",\"weight\":30},\"location\":\"Portugal\",\"temperature\":20}"},{"subject_id":"JrYArU05twLLHstko0yAr7kABhc46IRGZnJYVylRTZ8Y","governance_id":"","sn":0,"public_key":"EV7y-hRryeYuzW1FCjuwSyuUe97ojiWzDiAn-xM1Elmc","namespace":"","schema_id":"governance","owner":"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y","properties":"{\"members\":[{\"description\":\"Headquarters in 1\",\"id\":\"Company-1\",\"key\":\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"tags\":{}},{\"description\":\"Headquarters in 2\",\"id\":\"Company-2\",\"key\":\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"tags\":{}},{\"description\":\"Headquarters in 3\",\"id\":\"Company-3\",\"key\":\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\",\"tags\":{}}],\"policies\":[{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"governance\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}},{\"approval\":{\"approvers\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"],\"quorum\":0.5},\"id\":\"Test\",\"invokation\":{\"all\":{\"allowance\":false,\"approvalRequired\":false},\"external\":{\"allowance\":false,\"approvalRequired\":false},\"owner\":{\"allowance\":true,\"approvalRequired\":false},\"set\":{\"allowance\":false,\"approvalRequired\":false,\"invokers\":[]}},\"validation\":{\"quorum\":0.5,\"validators\":[\"EIahN95FYIOO5BwbEuGQ6VPFZTPTTjkrCTu3VFGM7O2Y\",\"EJbgafSSzx3QZwem79ypwxp8P4Q2kcrMZtdpzgPF1d3E\",\"EljceLTouD478TdoKVhOsSkfX6DBQ7G6M8yD0ChXhl4E\"]}}],\"schemas\":[{\"content\":{\"additionalProperties\":false,\"properties\":{\"batch\":{\"additionalProperties\":false,\"properties\":{\"origin\":{\"type\":\"string\"},\"weight\":{\"minimum\":0,\"type\":\"number\"}},\"required\":[\"weight\",\"origin\"],\"type\":\"object\"},\"location\":{\"type\":\"string\"},\"temperature\":{\"type\":\"integer\"}},\"required\":[\"temperature\",\"location\",\"batch\"],\"type\":\"object\"},\"id\":\"Test\",\"tags\":{}}]}"}]

Stopping Nodes

Once you have finished the tutorial, if you wish, you can make use of the script named stop_nodes.sh which will stop and delete the containers used for the tutorial.

$ ./stop_nodes.sh 
a8afb08b0e6f
4a4b3f776211
46f2a1d6b8be
Containers stopped and disposed of correctly

Quickstart

Description​

Setting Up Environment​

Running a 3-node network​

Launching first node​

Launching second and third node​

Create a governance and scheme​

Create a subject​

Create an event​

Create more subjects​

Display subjects of a node​

Stopping Nodes​