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MUST use camel case for query parameters

Query parameters MUST use camel-case strings that match this pattern: ^[a-z][a-z0-9]+(?:[A-Z][a-z0-9]+)*$.

Name Description
camel case The first letter of the first word MUST begin with a lowercase letter, the first letter of each subsequent word MUST begin with a capital letter and MUST NOT contain any separators between words such as spaces or special characters such as hyphens or underscores.

Invalid Examples

/product/v1/users?max_results=10&StartIndex=20&OTHER_PARAM=thing&other_other_param=that

Valid Examples

/product/v1/users?maxResults=10&startIndex=20

UKHSA Guidelines Parameter Names