Duplicate query string entries are somewhat common, for example if you use Solr, you can do something like this:<\/p>\n
\n\/execute?facet.field=stream_size&facet.field=content_type\n<\/pre>\nIf you make an Express.js endpoint, you get can this data through the “query” option:<\/p>\n
\napp.use('\/execute\/', \n function(req, res) {\n console.log(req.query)\n }\n)\n<\/pre>\nThe “req.query” is a Javascript object, which presents difficulties with duplicated arguments, which are joined into an array (so you do lose some information about order).<\/p>\n
If, for example, you wanted to combine all back into a string, you could do it with something like this (assuming you use underscore\/lodash):<\/p>\n
\nlet args = req.query;\n\nlet queryString =\n _.join(\n _.keys(args)\n .map( \n (arg) => \n isArray(args[arg]) ? \n _.join(\n args[arg].map( \n (argv) => arg + '=' + argv \n ), \n '&') : \n arg + '=' + args[arg]), \n '&');\n<\/pre>\n","protected":false},"excerpt":{"rendered":"Duplicate query string entries are somewhat common, for example if you use Solr, you can do something like this: \/execute?facet.field=stream_size&facet.field=content_type If you make an Express.js endpoint, you get can this data through the “query” option: app.use(‘\/execute\/’, function(req, res) { console.log(req.query) } ) The “req.query” is a Javascript object, which presents difficulties with duplicated arguments, which … <\/p>\n