To query a contract you must made a request to the reverse proxy (sentinel) of the data provider. You must include in the path the name of the service you'd like to query and supply authentication information (if required)
To make a free tier query, just query the service directly (not contract or authorization information is required).
An example of this would be
curl -vvv --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "ping", "params": []}' -H 'content-type: text/plain;' http://seed.arkeo.network:3636/btc-mainnet-fullnode
Open contracts are contracts that are paid for, but allows anyone to query that contract (without authentication or authorization). This query looks almost the same as a free tier query, but specifies the contract id number as a query arg
An example of this would be
curl -vvv --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "ping", "params": []}' -H 'content-type: text/plain;' http://seed.arkeo.network:3636/btc-mainnet-fullnode?arkauth=<contract_id>
To make an authenticated request, one must provide the contract id, nonce, and signature.
curl -vvv --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "ping", "params": []}' -H 'content-type: text/plain;' http://seed.arkeo.network:3636/btc-mainnet-fullnode?arkauth=<contract_id>:<nonce>:<signature>
The nonce refers to counter that increments on each request to the data
provider. If the client doesn't know the current nonce, query the claim
(/claim/<contract_id>) which will include both the nonce and the signature
to prove its correct.
To create the signature, use your private key to sign the following text
<contract_id>:<nonce>The signature produce should be hex encoded into a string for transmission (sample). There is a command line tool to creating this signature in the arkeo codebase, called signhere
In addition, there is a cli tool called curleo, which makes this easier to do, as url forming, nonce, and signing is all handled for you.