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I am trying to set up a transformer on a Database Reader to file writer channel. I am reading in a sql field called MRN which I would like to send to a variable called mrn. I added a step to a channel with a variable called tmp[‘MSH’] mapping to a variable called msg[‘MSH’] But mirth is giving me the error message:
The variable name contains invalid characters. Please enter a new variable name
What are the rules for a valid variable name in mirth?
tmpandmsgare two built-in variables containing E4X mappings of the outbound template and inbound message, respectively. You would map, via a MessageBuilder step, from inbound to outbound with tmp[‘MSH’][…] = msg[‘MSH’]… where...refers to the appropriate sections. Essentially these are pre-populated javascript property arrays.If you really want to create a variable for use in multiple places, the rules are alphanumeric plus ‘_’, I believe.
In a MessageBuilder step, you could refer to a previously created variable with ${varname}.
I would recommend investing a little time in getting familiar with the basics. Documentation is wanting, to be sure, but this blog post series are a good place to start.