Http Headers and Date Math

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Http Headers

The @HttpHeader annotation now is now supported, for setting headers on HTTP requests.

For example:

service MyService {
  @HttpOperation(method = "GET", url = "...")
 
  // A fixed, static header
  @HttpHeader(name = "Consumes", value = "application/json")
  operation findPeople():Person[]

  // A header that's calculated
  operation findPeople(
     @HttpHeader(name = "If-Modified-Since") ifModifiedSince : Instant = addDays(now(),-7)
  ):Person[]
}

You can also pass header values in using the given {} clause in a query:

service MyService {
  operation findPeople(
     @HttpHeader(name = "Cache-Control", prefix = "max-age=") cacheMaxAge : CacheMaxAge
  ):Person[]
}

// which is then invoked as:
given { maxAge : CacheMaxAge = 64000 } 
find { Person[] }

Read more about it in our docs

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Date math

The stdlib in Taxi has been expanded to add date math functions to the stdlib:

• addMinutes
• addDays
• addSeconds
• now
• parseDate

Read more about these in the Taxi docs