Add JMESPath expression

[TomasEng]

Our expression language needs a way to perform mapping and filtering on lists of objects. We have decided to add support for the JMESPath standard in the expression language in order to make that possible.

We need to add a function that accepts two arguments:

• A value of any type to perform the query on
• The JMESPath query

This function should return whatever the query evaluates to.

Example:

[
  "jmespath",
  [
    "list",
    [ "object", "name", "Ola", "city", "Oslo" ],
    [ "object", "name", "Kari", "city", "Oslo" ],
    [ "object", "name", "Knut", "city", "Brønnøysund" ]
  ],
  "[?city=='Oslo'].name"
]

returns ["Ola", "Kari"].

Relevant links

• NPM package
• Nuget package
• Add link to ADR here when published

Acceptance criteria

• A jmespath function exists in our expression language
• The function accepts any value as its first argument and a sring as its second argument
• The function returns the result of the JMESPath query provided in the second arguments evaluated on the value provided in the first argument