Decentralized Service Examples

Run a simple http json service

We use json-server as the example http service provider.

  1. Install json-server

npm install -g json-server

  1. Define the data

Create a db.json and write the data into the file:

{
    "posts": [
        {
            "id": 1,
            "author": "Rings Network de-service",
            "content": "Decentralize the world!"
        }
    ]
}

  1. Run the json-server

json-server --watch db.json --port 8000 --host 0.0.0.0

  1. Test the server response

You can use curl or just visit http://127.0.0.1:8000/posts in browsers to check if the json-server works fine.

Run a rings-node(name:node-0) and register the service

  1. Install the lastest Rings node

Let's name this node node-0

You can visit install-a-native-node.md for more installation details.

  1. Create a config file for node-0:

Edit the config file to register the service:

The whole config file would be something like this:

  1. Run node-0

Run another rings-node(name:node-1) and request the service

  1. Create a config file for node-1:

The whole config file would be something like this:

  1. Run node-1

Connect node-0 and node-1 together

You can connect node-0 to node-1 or per se to build a network. Or they can all connect to an existing network.

Here we connect node-0 to node-1:

Then we check if two nodes are connected together:

Result:

It's connected now.

Make the request

It prints Done. if nothing wrong.

Check the response

Let's check using polling message api:

Result:

MessageType:

So message_type 4 means HttpResponse. Let's decode the data with base64 decoding and gunzip:

It prints something like this:

It's in http response format.

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