Solana transaction simulation for builders and traders

send_http_request

std::send_http_request makes an HTTP request to the given URL and exports the response.

Inputs

Name	Required	Type	Description
`url`	required	string	The URL for the request. Supported schemes are http and https
`body`	optional	string	The request body as a string or json object
`method`	optional	string	The HTTP Method for the request. Allowed methods: GET, HEAD, POST
`timeout_ms`	optional	integer	The request timeout in milliseconds
`headers`	optional	object	A map of request header field names and values
`pre_condition`	optional	map	Pre-conditions that are evaluated before a command is executed
`post_condition`	optional	map	Post-conditions that are evaluated after a command is executed

Pre-conditions are assertions that are evaluated before a command is executed. They can be used to determine if the command should be executed or if a specific behavior should be executed based on the result of the assertion.

Property	Description
`behavior`	The behavior if the pre-condition assertion does not pass. Options: `halt` (default), `log`, `skip`
`assertion`	The assertion to check. Should evaluate to a boolean or use `std::assert_eq` and similar functions

Post-conditions

Post-conditions are assertions that are evaluated after a command is executed. They can be used to determine if the command should be re-executed.

Property	Description
`retries`	Number of times to re-execute the command if assertion fails. Default: 0
`backoff_ms`	Milliseconds to wait before re-executing. Default: 1000
`behavior`	The behavior if the post-condition assertion does not pass. Options: `halt` (default), `log`, `skip`, `continue`
`assertion`	The assertion to check

Outputs

When the send_http_request action is successfully executed, the following outputs are attached to the action:

Name	Type	Description
`response_body`	string	The response body returned as a string
`status_code`	integer	The HTTP response status code

Example

action "example" "std::send_http_request" {
  url = "https://example.com"
}

output "status" {
  value = action.example.status_code
}
// > status: 200

POST Request Example

action "create_resource" "std::send_http_request" {
    description = "Create a new resource"
    url = "https://api.example.com/resources"
    method = "POST"
    headers = {
        "Content-Type" = "application/json"
    }
    body = {
        "name" = variable.name,
        "value" = variable.value
    }
}

Request with Authentication

action "api_call" "std::send_http_request" {
    description = "Fetch data from API"
    url = "https://api.example.com/data"
    method = "GET"
    headers = {
        "Authorization" = "Bearer ${variable.token}"
    }
}

output "response" {
    value = action.api_call.response_body
}

output "status" {
    value = action.api_call.status_code
}

HTTP Actions