# Curly braces inside URI request

**URL:** <https://forum.katalon.com/t/curly-braces-inside-uri-request/13014>\
**Category:** API Testing\
**Tags:** api-testing, katalon-studio\
**Created:** [September 4, 2018, 10:54am UTC](https://forum.katalon.com/t/curly-braces-inside-uri-request/13014 "2018-09-04T10:54:30Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![ashish2](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@ashish2](https://forum.katalon.com/u/ashish2)\
**Post date:** [September 4, 2018, 10:54am UTC](https://forum.katalon.com/t/curly-braces-inside-uri-request/13014/1 "2018-09-04T10:54:30Z")

</div>

I have an api uri something like …/api/search/findTimeseries?filter={filter}"  
When I am passing values of filter as expected by api inside {…}, I am getting “400 Bad request: Your browser sent an invalid request.”

How to use such uri’s in katalon.

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<div class="post-metadata">

**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\
**Post date:** [September 4, 2018, 11:18am UTC](https://forum.katalon.com/t/curly-braces-inside-uri-request/13014/2 "2018-09-04T11:18:52Z")

</div>

```auto
....../api/search/findTimeseries?filter=%7Bfilter%7D

```

You should study about the concept of URL encoding. Read the following resource for example:

- [https://www.w3schools.com/tags/ref\_urlencode.asp](https://www.w3schools.com/tags/ref_urlencode.asp)