URLQueryEncode [key1val1,key2val2,…]
creates a URL-style query string from an association of keys and values.
URLQueryEncode [{param1val1,param2val1,…}]
creates a query string from a list of rules.
URLQueryEncode
URLQueryEncode [key1val1,key2val2,…]
creates a URL-style query string from an association of keys and values.
URLQueryEncode [{param1val1,param2val1,…}]
creates a query string from a list of rules.
Details and Options
- The vali can be strings, numbers, or the following special forms:
-
True "true"False "false"{e1,e2,…} e1, e2, …
- URLQueryEncode has the option CharacterEncoding , which specifies what type of character encoding to use for the output. The default is "UTF-8".
Examples
open all close allBasic Examples (4)
Encode a list of parameters:
Use Missing or None to represent a missing parameter value:
Nested lists are flattened:
URL and CloudObject can be encoded as values:
Options (3)
CharacterEncoding (1)
Percent encode with a specified encoding:
SortQueries (1)
Sort query parameters by using "SortQueries":
RemoveEmptyQueries (1)
Remove empty parameters by using "RemoveEmptyQueries":
Possible Issues (1)
Repeated keys are not supported by Association :
To specify multiple values, collect them in a list:
Alternatively, use a list of rules:
See Also
URLQueryDecode URLBuild URLEncode URLDecode URLParse URLExecute URLRead
Interpreter Types: URLString URLQueryString
Related Guides
Related Workflows
- Construct a URL Query String
Text
Wolfram Research (2014), URLQueryEncode, Wolfram Language function, https://reference.wolfram.com/language/ref/URLQueryEncode.html (updated 2016).
CMS
Wolfram Language. 2014. "URLQueryEncode." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2016. https://reference.wolfram.com/language/ref/URLQueryEncode.html.
APA
Wolfram Language. (2014). URLQueryEncode. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/URLQueryEncode.html
BibTeX
@misc{reference.wolfram_2025_urlqueryencode, author="Wolfram Research", title="{URLQueryEncode}", year="2016", howpublished="\url{https://reference.wolfram.com/language/ref/URLQueryEncode.html}", note=[Accessed: 17-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_urlqueryencode, organization={Wolfram Research}, title={URLQueryEncode}, year={2016}, url={https://reference.wolfram.com/language/ref/URLQueryEncode.html}, note=[Accessed: 17-November-2025]}