Postman Conversions

Collection

Convert Postman collection to Bruno collection

const { postmanToBruno } = require('@usebruno/converters');

const brunoCollection = postmanToBruno(postmanCollection);

const { postmanToBruno } = require('@usebruno/converters');
const { readFile, writeFile } = require('fs/promises');
const path = require('path');

async function convertPostmanToBruno(inputFile, outputFile) {
  try {
    const inputData = await readFile(inputFile, 'utf8');
    const brunoCollection = postmanToBruno(JSON.parse(inputData));
    await writeFile(outputFile, JSON.stringify(brunoCollection, null, 2));
    console.log('Conversion successful!');
  } catch (error) {
    console.error('Error during conversion:', error);
  }
}

convertPostmanToBruno(
  path.join(__dirname, 'demo_collection.postman_collection.json'),
  path.join(__dirname, 'demo_collection.bruno_collection.json')
);

Environment

Convert Postman Environment to Bruno Environment

const { postmanToBrunoEnvironment } = require('@usebruno/converters');

const brunoEnvironment = postmanToBrunoEnvironment(postmanEnvironment);

const { postmanToBrunoEnvironment } = require('@usebruno/converters');
const { readFile, writeFile } = require('fs/promises');
const path = require('path');

async function convertPostmanEnvironment(inputFile, outputFile) {
  try {
    const inputData = await readFile(inputFile, 'utf8');
    const brunoEnvironment = await postmanToBrunoEnvironment(JSON.parse(inputData));
    await writeFile(outputFile, JSON.stringify(brunoEnvironment, null, 2));
    console.log('Environment conversion successful!');
  } catch (error) {
    console.error('Error during environment conversion:', error);
  }
}

convertPostmanEnvironment(
  path.join(__dirname, 'demo_environment.postman_environment.json'),
  path.join(__dirname, 'demo_environment.bruno_environment.json')
);

Type coercion

The converter automatically handles non-string values that may appear in Postman collections. Numeric and boolean values in headers, query parameters, path parameters, form body fields, and authentication fields are coerced to strings during conversion. Null or undefined values default to empty strings (or appropriate fallback values for auth fields).

Postman collections may also store headers in non-standard formats such as concatenated strings ("Content-Type: application/json\r\nAccept: */*") or mixed arrays of strings and objects. The converter normalizes all header formats into consistent key-value pairs.