har-to-k6/src/render/post/multipart/fixed/pre.js

Convert LI-HAR to k6 script

const text = require('../../../text')

function generateMultipartFixedPre(params, boundary) {
  return (
    [
      `formData = new FormData();`,
      `formData.boundary = ${text(boundary)};`,
      ...generateAppendData(params),
    ].join('\n') + '\n'
  )
}

function generateAppendData(params) {
  return Array.from(params).reduce(
    (acc, [name, valueSet]) => [
      ...acc,
      ...Array.from(valueSet).map((value) => {
        if (!value.type) {
          return `formData.append(${text(name)}, ${text(value.value)})`
        }

        const data = `data: ${text(value.value)}`

        let fileName = ''
        let contentType = `, content_type: ${text('text/plain')}`

        if (value.fileName) {
          fileName = `, filename: ${text(value.fileName)}`
        }

        if (value.type) {
          contentType = `, content_type: ${text(value.type)}`
        }

        return `formData.append(${text(
          name
        )}, {${data}${fileName}${contentType}});`
      }),
    ],
    []
  )
}

module.exports = generateMultipartFixedPre