Getting query parameters from react-router hash fragment

Question

I m using react and react-router for my application on the client side  I can t seem to figure out how to get the following query parameters from a url like   http   xmen database search   status APPROVED amp page 1 amp limit 20   My routes look like this  the path is totally wrong I know    var routes      lt Route gt       lt DefaultRoute handler  SearchDisplay   gt       lt Route name  search  path   status  status amp page  page amp limit  limit  handler  SearchDisplay   gt       lt Route name  xmen  path  candidate  accountId  handler  XmenDisplay   gt   lt  Route gt       My route is working fine but I m just not sure how to format the path to get the parameters I want  Appreciate any help on this

User · Answer

OLD  pre v4    Writing in es6 and using react 0 14 6   react-router 2 0 0-rc5  I use this command to lookup the query params in my components   this props location query   It creates a hash of all available query params in the url   UPDATE  React Router v4      this props location query in React Router 4 has been removed  currently using v4 1 1  more about the issue here  https   github com ReactTraining react-router issues 4410  Looks like they want you to use your own method to parse the query params  currently using this library to fill the gap  https   github com sindresorhus query-string

User · Answer

Note  Copy   Pasted from comment  Be sure to like the original post  Writing in es6 and using react 0 14 6   react-router 2 0 0-rc5  I use this command to lookup the query params in my components  this props location query  It creates a hash of all available query params in the url  Update  For React-Router v4  see this answer  Basically  use this props location search to get the query string and parse with the query-string package or URLSearchParams  const params   new URLSearchParams paramsString    const tags   params get  tags

User · Answer

The above answers won t work in react-router v4  Here s what I did to solve the problem -   First Install query-string which will be required for parsing    npm install -save query-string  Now in the routed component you can access the un-parsed query string like this   this props location search   You can cross check it by logging in the console     Finally parse to access the query parameters   const queryString   require  query-string    var parsed   queryString parse this props location search   console log parsed param      replace param with your own    So if query is like  hello world  console log parsed hello  will log world

User · Answer

With stringquery Package    import qs from  stringquery    const obj   qs   status APPROVED amp page 1limit 20          gt    limit   10   page  1   status  APPROVED         With query-string Package    import qs from  query-string   const obj   qs parse this props location search   console log obj param        limit   10   page  1   status  APPROVED          No Package     const convertToObject    url    gt      const arr   url slice 1  split   amp          remove the        amp   and       let params          for let i   0  i  lt  arr length  i    2       const key   arr i   value   arr i   1       params key    value      build the object     limit   10   page  1   status  APPROVED          return params       const uri   this props location search       status APPROVED amp page 1 amp limit 20   const obj   convertToObject uri    console log obj        limit   10   page  1   status  APPROVED         obj status    obj page    obj limit   Hope that helps     Happy coding

User · Answer

update 2017 12 25   react-router-dom     4 2 2   url like   BrowserHistory  http   localhost 3000 demo-7 detail 2 sort name  HashHistory  http   localhost 3000 demo-7   detail 2 sort name  with query-string dependency   this id   props match params id  this searchObj   queryString parse props location search   this from   props location state from   console log this id  this searchObj  this from     results   2  sort   name   home     react-router     2 4 1   Url like http   localhost 8080 react-router01 1 name novaline amp age 26  const queryParams   this props location query   queryParams is a object contains the query params   name  novaline  age  26

User · Answer

quot react-router-dom quot    quot  5 0 0 quot    you do not need to add any additional module  just in your component that has a url address like this  http   localhost 3000    authority  you can try the following simple code      const search  this props location search      const params   new URLSearchParams search       const authority   params get  authority

User · Answer

After reading the other answers  First by  duncan-finney and then by  Marrs  I set out to find the change log that explains the idiomatic react-router 2 x way of solving this  The documentation on using location  which you need for queries  in components is actually contradicted by the actual code  So if you follow their advice  you get big angry warnings like this   Warning   react-router   context location  is deprecated  please use a route component s  props location  instead    It turns out that you cannot have a context property called location that uses the location type  But you can use a context property called loc that uses the location type  So the solution is a small modification on their source as follows   const RouteComponent   React createClass       childContextTypes            loc  PropTypes location             getChildContext             return   location  this props location              const ChildComponent   React createClass       contextTypes            loc  PropTypes location            render             console log this context loc           return  lt div gt this context loc query lt  div gt                You could also pass down only the parts of the location object you want in your children get the same benefit  It didn t change the warning to change to the object type  Hope that helps

User · Answer

You may get the following error while creating an optimized production build when using query-string module      Failed to minify the code from this file      node modules query-string index js 8   To overcome this  kindly use the alternative module called stringquery which does the same process well without any issues while running the build   import querySearch from  stringquery    var query   querySearch this props location search

User · Answer

Simple js solution   queryStringParse   function string        let parsed          if string                  string   string substring string indexOf      1          let p1   string split   amp            p1 map function value                let params   value split                  parsed params 0     params 1                        return parsed     And you can call it from anywhere using   var params   this queryStringParse this props location search     Hope this helps

[javascript] Getting query parameters from react-router hash fragment

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