[SOLVED] How can I reuse/import code in vtl appsync resolvers?

How can I reuse/import code in vtl appsync resolvers?

I want to avoid duplication of certain declarations in my vtl templates and share them between vtl resolvers.

Let's say I have a sample dict in mapping_templates/shared.vtl

#set($sample_mappings = {
    "KEY1": "VALUE1",
    "KEY2": "KEY2"
})

which I want to use in mapping_templates/sample_request_mapping_template.vtl, for example to do:

$sample_mappings.get("KEY1")

I tried the following with no success:

#parse("shared.vtl")
OR
#include("shared.vtl")

$sample_mappings.get("KEY1")

Really seems like a very basic feature, but I don't see it documented on aws' resolver guide, and I'm thinking this might not be supported as AppSync vtl doesn't even support all standard features of vtl.

Solution

Unfortunately this feature is not supported currently.

I will +1 this request to the team on your behalf.