up9inc/mockintosh

`fromjson` method in templates

chason-choate opened this issue · 3 comments

chason-choate commented

We have a use-case where we are using the reactive consumer and want to alter the JSON emitted from the producer.

Therefore i'd propose adding a fromjson method to mirror the tojson method. This gives templates more flexibility in how it deals with data.

undera commented

Can you elaborate? Maybe add example with config how would it look?

chason-choate commented

Sure thing, here is how we are using it:

Our reactive consumer config:

  - name: Kafka Actors
    type: kafka
    address: kafka:9092
    actors:
      - name: reactive
        consume:
          queue: input-topic
        produce:
          queue: output-topic
          value: '@output-response.json.hbs'

And the output-response.json.hbs template:

NOTE: We've edited the hbs/methods.py file to add this fromjson method.

{{ tojson (jsonPath (fromjson consumed.value) '$.payload') }}
undera commented

If you already have a working implementation, can you create a PR that contains it? I'd be happy to review and accept it.
Note: it would be great if PR would also contain a documentation piece for this function.

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