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Parse Query Params in JS
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Parse Query Params in JS

MediumSQL · PostgreSQL

Problem

Implement a method to parse query params in JS.

Asked in the Javascript for UI stage. For this SQL version, treat each request URL as input and preserve percent-encoded text.

Output

  1. One row per non-empty query parameter.
  2. Return request_id, param_name, param_value, and param_position.
  3. Preserve repeated parameters and empty values, exclude parameters with empty names, and order by request_id then param_position.

Schema

requests
ColumnTypeDescription
request_idPKINTUnique request identifier
request_urlTEXTURL containing an optional query string
Tablesrequests
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