arjan
DSL for writing GraphQL in Elixir?
Would there be interest in a (small) DSL for writing graphql queries in Elixir?
In my tests I am now annoyed by the fact that GraphQL does not indent very well (writing gigantic GraphQL queries inside ~s(...)), so I’m tempted to write a macro which takes something like this:
graphql = query [id: :string] do
orders(a: id) do
id
title
order_lines do
id
price
end
end
end
And automagically converts it into this string:
query ($id: String) { orders(id: $id) { id title order_lines { id price } } }
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benwilson512
This is a good question. TBH I’m not sure it gets you much over using triple quotes:
query = """
query ($id: String) {
orders(id: $id) { id title orderLines { id price } }
}
"""
GraphQL syntax is so very nearly a DSL on its own already. Certainly for tests I’m not sure that a DSL adds much value.
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arjan
I’ve put it up: GitHub - arjan/absinthe_dsl: Elixir DSL for constructing GraphQL queries · GitHub
Works like this:
query = query(arg: :string) do
users(id: arg) do
name
end
end
assert query == "query ($arg: String) { users(id: $arg) { name } }"
Contributors welcome 
arjan
You’re right.. the """ strings solve most issues. Except that it’s not smart with auto-indentation in the string. But I guess that’s an Emacs issue 
benwilson512
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