GraphQL Schema中如何将联合类型声明拆分为多行？

Absolutely! You absolutely can split each type in your union declaration onto its own line—this is actually a recommended practice for keeping your schema readable and easy to maintain, especially as you plan to add more types later.

GraphQL’s syntax doesn’t enforce all union members to be on a single line. Here’s how you can rewrite your SectionUnion for better readability:

union SectionUnion = 
  SectionForm |
  Section2 |
  Section3 |
  Section4 |
  Section5

Or if you prefer placing the pipe (|) at the start of each line (a style some teams favor for consistency), that works perfectly too:

union SectionUnion = SectionForm
  | Section2
  | Section3
  | Section4
  | Section5

Either format will be correctly parsed by all GraphQL tools. The key is to pick a style your team agrees on and stick with it—this way, when you add new types like Section6 or Section7 later, you just append a new line instead of cramming everything into one unwieldy line that’s hard to scan.

This approach is a lifesaver for large schemas where unions can grow to include dozens of member types over time.

内容的提问来源于stack exchange，提问作者drupov