getFeeForMessage

Returns the fee the network will charge for a specified message.

Parameters

• message: (string) [required] - The base64 encoded transaction message.
• config: (object) [optional] - Configuration object with the following options:
  • commitment: (string) [optional] The commitment level to use for the query. The default is finalized. Possible values are:
    • finalized - Queries the most recent block confirmed by a super majority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized.
    • confirmed - Queries the most recent block that has been voted on by a super majority of the cluster.
    • processed - Queries its most recent block. The block may still be skipped by the cluster.
  • minContextSlot: (integer) [optional] - The minimum slot to use for the query.

Returns

result - null when the block doesn't exist, or an object with the following fields:

• context - An object containing the following keys:
  • slot - The slot number of the block that was queried.
  • apiVersion - The API version used for the query.
• value - null, or the fee for the specified message.

Request

• curl

curl https://solana-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "getFeeForMessage", "params": ["AQABAgIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEBAQAA", {"commitment": "processed"}]}'

Response

• JSON

{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "apiVersion": "2.1.11",
      "slot": 320142245
     },
     "value": null
  },
  "id": 1
}