The Workflows syntax supports a string data type with UTF‑8 encoding ( maximum length ).
For information on conversion and built-in string functions, see Data types, functions, operators .
For other text processing functions, see the Workflows standard
library text
module reference
.
Assign a string variable
The value of a static string can be assigned to a variable. For example:
YAML
- step : assign : - string : "hello"
JSON
[ { "step" : { "assign" : [ { "string" : "hello" } ] } } ]
Concatenate using expressions
You can dynamically concatenate strings using expressions and the +
operator.
For example:
YAML
- step : assign : - outputVar : ${"Hello, " + firstName}
JSON
[ { "step" : { "assign" : [ { "outputVar" : "${\"Hello \" + firstName}" } ] } } ]
Concatenate over multiple lines
Since each assignment is processed sequentially, you can concatenate a string over multiple lines by repeating the variable and splitting the assignment. For example:
YAML
main : steps : - assign_vars : assign : - concatLines : "say" - concatLines : ${concatLines+" "+"hello"} - concatLines : ${concatLines+" "+"to the world"} - returnOutput : return : ${concatLines}
JSON
{ "main" : { "steps" : [ { "assign_vars" : { "assign" : [ { "concatLines" : "say" }, { "concatLines" : "${concatLines+\" \"+\"hello\"}" }, { "concatLines" : "${concatLines+\" \"+\"to the world\"}" } ] } }, { "returnOutput" : { "return" : "${concatLines}" } } ] } }
