Code Execution

Function

Runs simple JavaScript code for complex data processing. Code executes in a sandbox with no access to network requests, DOM, or async operations. For advanced use cases, use an HTTP node instead.

Important Notes

• Self-hosted users must deploy the fastgpt-sandbox image and set the SANDBOX_URL environment variable.
• The sandbox enforces a 10-second max runtime and 32 MB memory limit.

Variable Input

Add the variables your code needs via custom inputs. In the code's main function, destructure them by matching name.

As shown above, the custom inputs include data1 and data2, which can be destructured with the same names in the main function.

Result Output

You must return an object.

In custom outputs, add variable names to retrieve values from the corresponding object keys. For example, the image above returns:

{
  result: data1,
  data2
}

This object has 2 keys: result and data2 (JS shorthand where key = data2, value = data2). You can then add 2 custom output variables to access the values under each key.

Built-in JS Global Variables

delay

Returns after a 1-second delay:

async function main({data1, data2}){
    await delay(1000)
    return {
        result: "111"
    }
}

countToken

function main({input}){
    return {
        result: countToken(input)
    }
}

strToBase64 (added in v4.8.11)

Useful for converting SVG images to base64 format for display.

function main({input}){

    return {
        /*
            param1: input - the string to convert
            param2: base64 prefix
        */
        result: strToBase64(input,'data:image/svg+xml;base64,')
    }
}

createHmac

Works the same as Node.js crypto's createHmac method.

function main({secret}){
    const {sign,timestamp} = createHmac('sha256',secret)

    return {
        sign,timestamp
    }
}