extract meta information from airtable base

On2Air: Meta Extraction Script

/*****
 * Title: Post Meta Data
 * License: MIT
 * Author: Openside (Team behind On2Air products and BuiltOnAir community)
 * Sites:
 * https://openside.com - Openside Consulting Services
 * https://openside.com/#products - On2Air Products
 * https://builtonair.com - All things Airtable Community
 * 
 * Reach out for all your Airtable needs
 * 
 * Description: Retrieve the meta information regarding a base and optionally
 * post it to an external URL.
 * 
 * This is useful to share your base information with 3rd party tools or
 * for other other internal purposes.
 * 
 * Instructions: Configure the 3 fields below and execute script.
 * 
 */

//-------------START CONFIGURATION ------------------//

//set to true to display the Meta Data as Json; false to not display
const renderJson = true
//set to true to POST metadata to a URL; false to not post anywhere
const postJson = false  
//if blank, it will ask for the URL; add it here to avoid asking each time
let postUrl = ''

//-------------END CONFIGURATION ------------------//

if(postJson && !postUrl){
    output.text('***POST TO URL***')
    output.text('Be sure this URL supports [CORS](https://medium.com/@baphemot/understanding-cors-18ad6b478e2b)')
    postUrl = await input.text('Enter the URL of where to Post the Meta Data')
    postUrl = postUrl.trim()
}


//get base meta data
const fda = ( fields ) => {
    let data = []
    for(const f of fields ){
        data.push(fd(f))
    }
    return data
}
const fd = ( field ) => {
    let data = {
        id: field.id, name: field.name, type: field.type, isComputed: field.isComputed, options:field.options, description: field.description
    }
    return data
}

let tables = []
for (const table of base.tables ){
     
    let views = []
    

    for (const view of table.views ){
        views.push({
            id: view.id,
            name: view.name,
            type: view.type,
            url: view.url

        })
    }
    let fields = fda(table.fields)
    

    tables.push({
        id: table.id,
        name: table.name,
        description: table.description,
        url: table.url,
        views, fields
    })




}
let baseData = {
    source: 'script',
    version: '0.0',
    meta: {
        id: base.id, name: base.name, activeCollaborators: base.activeCollaborators, 
        tables
    }
}
if(renderJson){
    output.markdown('## BASE META DATA ##')
    output.inspect(baseData)
    output.markdown('### START JSON ###')
    output.text(JSON.stringify(baseData))
    output.markdown('### END JSON ###')
}
if(postJson && postUrl){
    // @ts-ignore
    let response = await fetch(postUrl,{
        method: 'POST',
        headers: {
        'Content-Type': 'application/json'
        },
        body: JSON.stringify({base:baseData})
    })
    
    output.text('**POST RESPONSE**' + ' - ' + response.status)
    
}