RPC Endpoints

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Gas


Gas Price

Returns gas price for a specific block_height or block_hash.

  • Using [null] will return the most recent block’s gas price.
  • method: gas_price
  • params: [block_height], ["block_hash"], or [null]

[block_height]


“`json
{
“jsonrpc”: “2.0”,
“id”: “dontcare”,
“method”: “gas_price”,
“params”: [17824600]
}
“`


“`js
const response = await near.connection.provider.gasPrice(17824600);
“`


“`bash
http post https://rpc.testnet.near.org jsonrpc=2.0 method=gas_price params:='[17824600]’ id=dontcare
“`


["block_hash"]


“`json
{
“jsonrpc”: “2.0”,
“id”: “dontcare”,
“method”: “gas_price”,
“params”: [“AXa8CHDQSA8RdFCt12rtpFraVq4fDUgJbLPxwbaZcZrj”]
}
“`


“`js
const response = await near.connection.provider.gasPrice(
“AXa8CHDQSA8RdFCt12rtpFraVq4fDUgJbLPxwbaZcZrj”
);
“`


“`bash
http post https://rpc.testnet.near.org jsonrpc=2.0 method=gas_price params:='[“AXa8CHDQSA8RdFCt12rtpFraVq4fDUgJbLPxwbaZcZrj”]’ id=dontcare
“`


[null]


“`json
{
“jsonrpc”: “2.0”,
“id”: “dontcare”,
“method”: “gas_price”,
“params”: [null]
}
“`


“`js
const response = await near.connection.provider.gasPrice(null);
“`


“`bash
http post https://rpc.testnet.near.org jsonrpc=2.0 method=gas_price params:='[null]’ id=dontcare
“`


Example response:

“`json
{
“jsonrpc”: “2.0”,
“result”: {
“gas_price”: “100000000”
},
“id”: “dontcare”
}
“`

What could go wrong?

When API request fails, RPC server returns a structured error response with a limited number of well-defined error variants, so client code can exhaustively handle all the possible error cases. Our JSON-RPC errors follow verror convention for structuring the error response:

{
    "error": {
        "name": <ERROR_TYPE>,
        "cause": {
            "info": {..},
            "name": <ERROR_CAUSE>
        },
        "code": -32000,
        "data": String,
        "message": "Server error",
    },
    "id": "dontcare",
    "jsonrpc": "2.0"
}

Heads up

The fields code, data, and message in the structure above are considered legacy ones and might be deprecated in the future. Please, don’t rely on them.

Here is the exhaustive list of the error variants that can be returned by gas_price method:

ERROR_TYPE
error.name
ERROR_CAUSE
error.cause.name
Reason Solution
HANDLER_ERROR UNKNOWN_BLOCK The requested block has not been produced yet or it has been garbage-collected (cleaned up to save space on the RPC node)
  • Check that the requested block is legit
  • If the block had been produced more than 5 epochs ago, try to send your request to an archival node
REQUEST_VALIDATION_ERROR PARSE_ERROR Passed arguments can’t be parsed by JSON RPC server (missing arguments, wrong format, etc.)
  • Check the arguments passed and pass the correct ones
  • Check error.cause.info for more details
INTERNAL_ERROR INTERNAL_ERROR Something went wrong with the node itself or overloaded
  • Try again later
  • Send a request to a different node
  • Check error.cause.info for more details

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