Add an entry to paramsBuilder with key-value pairing of (headerKey, fieldValue). The only
validation done is to ensure the headerKey and fieldValue are not null and non-empty. This
method is used for implicit routing headers (backwards compatibility).
Add an entry to paramsBuilder by match-and-extract field values from requests based on
pre-configured path templates. This method is called repeatedly for each configured routing
rule parameter, it's possible that the incoming field value from request is null or there is no
matches found, we'll continue the match-and-extract process for the next routing rule parameter
in such case.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eRequestParamsBuilder\u003c/code\u003e class, version 2.33.0, within the Google API Client Libraries for Java.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eRequestParamsBuilder\u003c/code\u003e class is used to construct a map of request parameters for routing, which is used by the autogenerated implementation of \u003ccode\u003eRequestParamsExtractor\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ecreate()\u003c/code\u003e static method returns a new instance of the \u003ccode\u003eRequestParamsBuilder\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eadd()\u003c/code\u003e methods allow adding key-value pairs to the parameter map, either directly with a header key and field value or by matching and extracting values from request fields using path templates.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ebuild()\u003c/code\u003e method returns a \u003ccode\u003eMap<String,String>\u003c/code\u003e that represents the built request parameters.\u003c/p\u003e\n"]]],[],null,[]]
