+98
-1
lines changedFilter options
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lines changed Original file line number Diff line number Diff line change
@@ -57,6 +57,103 @@ union DogOrHuman = Dog | Human
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union HumanOrAlien = Human | Alien
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```
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## Operations
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### Named Operation Definitions
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#### Operation Name Uniqueness
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** Formal Specification **
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* For each operation definition {operation} in the document
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* Let {operationName} be the name of {operation}.
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* If {operationName} exists
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* Let {operations} be all operation definitions in the document named {operationName}.
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* {operations} must be a set of one.
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** Explanatory Text **
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Each named operation definitions must be unique within a document when referred
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to by its name.
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For example the following document is valid:
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```graphql
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query getDogName {
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dog {
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name
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}
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}
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query getOwnerName {
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dog {
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owner {
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name
92 +
}
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}
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}
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```
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While this document is invalid:
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```!graphql
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query getName {
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dog {
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name
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}
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}
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query getName {
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dog {
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owner {
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name
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}
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}
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}
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```
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### Anonymous Operation Definitions
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#### Lone Anonymous Operation
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** Formal Specification **
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* Let {operations} be all anonymous operation definitions in the document.
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* {operations} must be a set of one.
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** Explanatory Text **
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GraphQL allows a short-hand form for defining query operations when only that
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one operation exists in the document.
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For example the following document is valid:
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```graphql
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{
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dog {
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name
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}
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}
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```
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While this document is invalid:
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```!graphql
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{
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dog {
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name
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}
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}
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query getName {
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dog {
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owner {
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name
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}
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}
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}
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```
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## Fields
61 158 62 159
### Field Selections on Objects, Interfaces, and Unions Types
@@ -486,7 +583,7 @@ fragment fragmentTwo on Dog {
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While this document is invalid:
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```graphql
586 +
```!graphql
490 587
{
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...fragmentOne
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}
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