Layer7 API Management

Array of {1,2,3,4,5,6}  to

<name>1</name>

<name>2</name>

<name>3</name>

<name>4</name>

<name>5</name>

<name>6</name>

We dont know the size of array.

How can this type of transformations done in Layer7?

Yes, you can use split variable and then run assertion  for each item…

Within the run assertion for each item you can build a variable to then be placed inside a another variable.  Then within the run assertions for each item build out a variable with the tags that you want to surround it.  The value within the tag would be *.current from the run each assertion current run through of the value from the split variable.  It will know how many times the value appears.

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A sample is more appreciated

I have sent an email to you from my corp id

We have attached a sample policy that should accomplish what you are looking for. Output expected:

<names><name>1</name><name>2</name><name>3</name><name>4</name><name>5</name><name>6</name></names>

You don't even need to use Run For Each Item assertion if the following conditions hold:

1. The array will never be empty (or it is OK in this case to emit a single empty element)

2. The items in the array will never contain XML metacharacters (such as < > &) that require escaping

Then you can just use the join syntax built into the Gateway's string interpolation feature, where you can include a vertical bar after the variable name followed by a custom delimiter to use for joining multivalued variable items when interpolating into a string.  You can change the template response to the following and delete the Run For Each Item assertion:

<names>

<name>${array|</name><name>}</name>

</names>

I've attached an edited sample policy showing this.