Informational JSON-RPC Methods
chain_get_block
This method returns the JSON representation of a Block from the network.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "chain_get_block",
"params": [
{
"Hash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32001,
"message": "No such block",
"data": {
"message": "block 13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb not stored on this node",
"available_block_range": {
"low": 2416846,
"high": 2780145
}
}
}
}chain_get_block_transfers
This method returns all successful native transfers within a given Block from a network.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "chain_get_block_transfers",
"params": [
{
"Hash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32001,
"message": "No such block",
"data": {
"message": "block 13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb not stored on this node",
"available_block_range": {
"low": 2753016,
"high": 2780149
}
}
}
}chain_get_era_summary
This method returns the era summary at a given Block. If you do not specify a block_identifier, you will receive the era summary at the highest state root hash.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc":"2.0",
"method":"chain_get_era_summary",
"params": [
{
"Hash":"9bfa58709058935882a095ca6adf844b72a2ddf0f49b8575ef1ceda987452fb8"
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32001,
"message": "No such block",
"data": {
"message": "block 9bfa58709058935882a095ca6adf844b72a2ddf0f49b8575ef1ceda987452fb8 not stored on this node",
"available_block_range": {
"low": 2416846,
"high": 2780153
}
}
}
}chain_get_state_root_hash
This method returns a state root hash at a given Block. If you do not specify a block_identifier, you will receive the highest state root hash.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "chain_get_state_root_hash",
"params": [
{
"Height": 10
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32001,
"message": "No such block",
"data": {
"message": "block at height 10 not stored on this node",
"available_block_range": {
"low": 2753016,
"high": 2780201
}
}
}
}info_get_chainspec
This method returns raw bytes for chainspec files.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"jsonrpc": "2.0",
"method": "info_get_chainspec",
"id": 5510244237763930243
}Example response: 200
{
"jsonrpc": "2.0",
"id": 5510244237763930000,
"result": {
"api_version": "1.5.6",
"chainspec_bytes": {
"chainspec_bytes": 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"maybe_genesis_accounts_bytes": null,
"maybe_global_state_bytes": null
}
}
}info_get_deploy
This method retrieves a Deploy from a network. It requires a deploy_hash to query the Deploy.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "info_get_deploy",
"params": [
"5c9b3b099c1378aa8e4a5f07f59ff1fcdc69a83179427c7e67ae0377d94d93fa",
true
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32000,
"message": "No such deploy",
"data": "failed to get deploy-hash(5c9b..93fa) and metadata from storage"
}
}query_balance
This method allows you to query for the balance of a purse using a PurseIdentifier and StateIdentifier.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "query_balance",
"params": [
{
"name": "state_identifier",
"value": {
"BlockHash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
}
},
{
"name": "purse_identifier",
"value": {
"main_purse_under_account_hash": "account-hash-0909090909090909090909090909090909090909090909090909090909090909"
}
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32602,
"message": "Invalid params",
"data": "Failed to parse 'params' field: invalid value: map, expected map with a single key"
}
}query_global_state
This method allows for you to query for a value stored under certain keys in global state. You may query using either a Block hash or state root hash.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "query_global_state",
"params": [
"deploy-af684263911154d26fa05be9963171802801a0b6aff8f199b7391eacb8edc9e1",
[],
{
"BlockHash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
}
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32602,
"message": "Invalid params",
"data": "Failed to parse 'params' field: unknown variant `deploy-af684263911154d26fa05be9963171802801a0b6aff8f199b7391eacb8edc9e1`, expected one of `BlockHash`, `BlockHeight`, `StateRootHash`"
}
}state_get_account_info
This method returns a JSON representation of an Account from the network. The block_identifier must refer to a Block after the Account's creation, or the method will return an empty response.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "state_get_account_info",
"params": [
{
"Hash": "13c2d7a68ecdd4b74bf4393c88915c836c863fc4bf11d7f2bd930a1bbccacdcb"
},
"013b6a27bcceb6a42d62a3a8d02a6f0d73653215771de243a63ac048a18b59da29"
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32602,
"message": "Invalid params",
"data": "Failed to parse 'params' field: data did not match any variant of untagged enum AccountIdentifier"
}
}state_get_dictionary_item
This method returns an item from a Dictionary. Every dictionary has a seed URef, findable by using a dictionary_identifier. The address of a stored value is the blake2b hash of the seed URef and the byte representation of the dictionary key.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "state_get_dictionary_item",
"params": [
{
"URef": {
"dictionary_item_key": "a_unique_entry_identifier",
"seed_uref": "uref-09480c3248ef76b603d386f3f4f8a5f87f597d4eaffd475433f861af187ab5db-007"
}
},
"0808080808080808080808080808080808080808080808080808080808080808"
]
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"error": {
"code": -32602,
"message": "Invalid params",
"data": "Failed to parse 'params' field: invalid type: map, expected a string"
}
}info_get_peers
This method returns a list of peers connected to the node.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "info_get_peers",
"params": []
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"api_version": "1.5.6",
"peers": [
{
"node_id": "tls:0108..c606",
"address": "5.9.36.10:35000"
},
{
"node_id": "tls:03c3..baa3",
"address": "47.243.248.96:7025"
},
{
"node_id": "tls:04b4..3701",
"address": "195.201.86.100:35000"
},
{
"node_id": "tls:06a7..ca6d",
"address": "45.125.23.194:35000"
},
{
"node_id": "tls:0944..0b7c",
"address": "18.190.168.152:35000"
},
{
"node_id": "tls:0970..5d51",
"address": "159.69.171.172:35000"
},
{
"node_id": "tls:09a5..daee",
"address": "71.105.223.69:35000"
},
{
"node_id": "tls:0a42..a0b2",
"address": "89.217.197.105:35000"
},
{
"node_id": "tls:0b0f..4daf",
"address": "63.32.101.202:35000"
},
{
"node_id": "tls:0cc3..f1bb",
"address": "34.213.109.110:35000"
},
{
"node_id": "tls:0d7d..4a5e",
"address": "3.141.144.131:35000"
},
{
"node_id": "tls:0dea..ba4f",
"address": "165.154.225.71:35000"
},
{
"node_id": "tls:0f2a..6c99",
"address": "15.235.53.233:35000"
},
{
"node_id": "tls:10b1..e0db",
"address": "37.27.69.30:35000"
},
{
"node_id": "tls:11e6..d2da",
"address": "149.28.141.66:35000"
},
{
"node_id": "tls:1230..b4ff",
"address": "13.58.157.225:35000"
},
...info_get_status
This method returns the current status of a node.
Method: POST
https://casper.nownodes.io/rpc
Example body (raw)
{
"id": 1,
"jsonrpc": "2.0",
"method": "info_get_status",
"params": []
}Example response: 200
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"peers": [
{
"node_id": "tls:0108..c606",
"address": "5.9.36.10:35000"
},
{
"node_id": "tls:03c3..baa3",
"address": "47.243.248.96:7025"
},
{
"node_id": "tls:04b4..3701",
"address": "195.201.86.100:35000"
},
{
"node_id": "tls:06a7..ca6d",
"address": "45.125.23.194:35000"
},
{
"node_id": "tls:0944..0b7c",
"address": "18.190.168.152:35000"
},
{
"node_id": "tls:0970..5d51",
"address": "159.69.171.172:35000"
},
{
"node_id": "tls:09a5..daee",
"address": "71.105.223.69:35000"
},
{
"node_id": "tls:0a42..a0b2",
"address": "89.217.197.105:35000"
},
{
"node_id": "tls:0b0f..4daf",
"address": "63.32.101.202:35000"
},
{
"node_id": "tls:0cc3..f1bb",
"address": "34.213.109.110:35000"
},
{
"node_id": "tls:0d7d..4a5e",
"address": "3.141.144.131:35000"
},
{
"node_id": "tls:0dea..ba4f",
"address": "165.154.225.71:35000"
},
...Last updated