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parseBody.ts
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/
parseBody.ts
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import { MockedRequest } from '../../handlers/RequestHandler'
import { jsonParse } from '../internal/jsonParse'
import { parseMultipartData } from '../internal/parseMultipartData'
/**
* Parses a given request/response body based on the "Content-Type" header.
*/
export function parseBody(body?: MockedRequest['body'], headers?: Headers) {
// Return whatever falsey body value is given.
if (!body) {
return body
}
const contentType = headers?.get('content-type')?.toLowerCase() || ''
// If the body has a Multipart Content-Type
// parse it into an object.
const hasMultipartContent = contentType.startsWith('multipart/form-data')
if (hasMultipartContent && typeof body !== 'object') {
return parseMultipartData(body.toString(), headers) || body
}
// If the intercepted request's body has a JSON Content-Type
// parse it into an object.
const hasJsonContent = contentType.includes('json')
if (hasJsonContent && typeof body !== 'object') {
return jsonParse(body.toString()) || body
}
// Otherwise leave as-is.
return body
}