Resolve external $refs in OpenAPI (swagger) 2.0 / 3.x definitions
npm install oas-resolver``js`
const yaml = require('yaml');
const input = yaml.parse(str);
const source = url; // or filename
resolver.resolve(input,source,options)
.then(function(options){
fs.writeFileSync(outputFile,yaml.stringify(options.openapi),'utf8');
})
.catch(function(ex){
// ...
});
See here for complete documentation of the options` object.