[operations][client-preset] CODEGEN-500 - Support semantic non-null for clients #10323
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| --- | ||
| '@graphql-codegen/typescript-operations': minor | ||
| --- | ||
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| Add support for semanticNonNull.errorHandlingClient |
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@@ -292,4 +292,42 @@ export interface TypeScriptDocumentsPluginConfig extends RawDocumentsConfig { | |
| */ | ||
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| allowUndefinedQueryVariables?: boolean; | ||
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| /** | ||
| * @description Options related to `@semanticNonNull` directive | ||
| * @exampleMarkdown | ||
| * ## `errorHandlingClient` | ||
| * When using error handling clients, a semantic non-nullable field can never be `null`. | ||
| * If a field is read and its value is `null`, there must be a respective error. The error handling client will throw in this case, so the `null` value is never read. | ||
| * | ||
| * To enable this option, install `graphql-sock` peer dependency: | ||
| * | ||
| * ```sh npm2yarn | ||
| * npm install -D graphql-sock | ||
| * ``` | ||
| * | ||
| * Now, you can enable support for error handling clients: | ||
| * | ||
| * ```ts filename="codegen.ts" | ||
| * import type { CodegenConfig } from '@graphql-codegen/cli'; | ||
| * | ||
| * const config: CodegenConfig = { | ||
| * // ... | ||
| * generates: { | ||
| * 'path/to/file.ts': { | ||
| * plugins: ['typescript', 'typescript-operations'], | ||
| * config: { | ||
| * semanticNonNull: { | ||
| * errorHandlingClient: true | ||
| * } | ||
| * }, | ||
| * }, | ||
| * }, | ||
| * }; | ||
| * export default config; | ||
| * ``` | ||
| */ | ||
| semanticNonNull?: { | ||
| errorHandlingClient: boolean; | ||
| }; | ||
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Collaborator
Author
There was a problem hiding this comment. I'm thinking this object can be extended to handle other related There was a problem hiding this comment. I see That client will not get the semantic nullability information but could still use I would keep it simple/yagni with just a plain Boolean option: semanticNonNull?: booleanIf really you want to bundle nullability options together, maybe something like so: nullability?: {
semanticNonNull: boolean;
catch: boolean;
} |
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| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,145 @@ | ||
| import { buildSchema, parse } from 'graphql'; | ||
| import * as prettier from 'prettier'; | ||
| import { plugin } from '../src/index.js'; | ||
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| const schema = buildSchema(/* GraphQL */ ` | ||
| directive @semanticNonNull(levels: [Int] = [0]) on FIELD_DEFINITION | ||
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| type Query { | ||
| me: User | ||
| } | ||
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| type User { | ||
| field: String @semanticNonNull | ||
| fieldLevel0: String @semanticNonNull(levels: [0]) | ||
| fieldLevel1: String @semanticNonNull(levels: [1]) | ||
| fieldBothLevels: String @semanticNonNull(levels: [0, 1]) | ||
| list: [String] @semanticNonNull | ||
| listLevel0: [String] @semanticNonNull(levels: [0]) | ||
| listLevel1: [String] @semanticNonNull(levels: [1]) | ||
| listBothLevels: [String] @semanticNonNull(levels: [0, 1]) | ||
| nonNullableList: [String]! @semanticNonNull | ||
| nonNullableListLevel0: [String]! @semanticNonNull(levels: [0]) | ||
| nonNullableListLevel1: [String]! @semanticNonNull(levels: [1]) | ||
| nonNullableListBothLevels: [String]! @semanticNonNull(levels: [0, 1]) | ||
| listWithNonNullableItem: [String!] @semanticNonNull | ||
| listWithNonNullableItemLevel0: [String!] @semanticNonNull(levels: [0]) | ||
| listWithNonNullableItemLevel1: [String!] @semanticNonNull(levels: [1]) | ||
| listWithNonNullableItemBothLevels: [String!] @semanticNonNull(levels: [0, 1]) | ||
| nonNullableListWithNonNullableItem: [String!]! @semanticNonNull | ||
| nonNullableListWithNonNullableItemLevel0: [String!]! @semanticNonNull(levels: [0]) | ||
| nonNullableListWithNonNullableItemLevel1: [String!]! @semanticNonNull(levels: [1]) | ||
| nonNullableListWithNonNullableItemBothLevels: [String!]! @semanticNonNull(levels: [0, 1]) | ||
| } | ||
| `); | ||
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| const document = parse(/* GraphQL */ ` | ||
| query { | ||
| me { | ||
| field | ||
| fieldLevel0 | ||
| fieldLevel1 | ||
| fieldBothLevels | ||
| list | ||
| listLevel0 | ||
| listLevel1 | ||
| listBothLevels | ||
| nonNullableList | ||
| nonNullableListLevel0 | ||
| nonNullableListLevel1 | ||
| nonNullableListBothLevels | ||
| listWithNonNullableItem | ||
| listWithNonNullableItemLevel0 | ||
| listWithNonNullableItemLevel1 | ||
| listWithNonNullableItemBothLevels | ||
| nonNullableListWithNonNullableItem | ||
| nonNullableListWithNonNullableItemLevel0 | ||
| nonNullableListWithNonNullableItemLevel1 | ||
| nonNullableListWithNonNullableItemBothLevels | ||
| } | ||
| } | ||
| `); | ||
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| describe('TypeScript Operations Plugin - semanticNonNull', () => { | ||
| it('converts semanticNonNull to nonNull when semanticNonNull.errorHandlingClient=true', async () => { | ||
| const result = await plugin(schema, [{ document }], { | ||
| semanticNonNull: { | ||
| errorHandlingClient: true, | ||
| }, | ||
| }); | ||
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| const formattedContent = prettier.format(result.content); | ||
| expect(formattedContent).toMatchInlineSnapshot(` | ||
| "export type Unnamed_1_QueryVariables = Exact<{ [key: string]: never }>; | ||
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| export type Unnamed_1_Query = { | ||
| __typename?: "Query", | ||
| me?: { | ||
| __typename?: "User", | ||
| field: string, | ||
| fieldLevel0: string, | ||
| fieldLevel1?: string | null, | ||
| fieldBothLevels: string, | ||
| list: Array<string | null>, | ||
| listLevel0: Array<string | null>, | ||
| listLevel1?: Array<string> | null, | ||
| listBothLevels: Array<string>, | ||
| nonNullableList: Array<string | null>, | ||
| nonNullableListLevel0: Array<string | null>, | ||
| nonNullableListLevel1: Array<string>, | ||
| nonNullableListBothLevels: Array<string>, | ||
| listWithNonNullableItem: Array<string>, | ||
| listWithNonNullableItemLevel0: Array<string>, | ||
| listWithNonNullableItemLevel1?: Array<string> | null, | ||
| listWithNonNullableItemBothLevels: Array<string>, | ||
| nonNullableListWithNonNullableItem: Array<string>, | ||
| nonNullableListWithNonNullableItemLevel0: Array<string>, | ||
| nonNullableListWithNonNullableItemLevel1: Array<string>, | ||
| nonNullableListWithNonNullableItemBothLevels: Array<string>, | ||
| } | null, | ||
| }; | ||
| " | ||
| `); | ||
| }); | ||
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| it('does not convert semanticNonNull to nonNull when semanticNonNull.errorHandlingClient=false', async () => { | ||
| const result = await plugin(schema, [{ document }], { | ||
| semanticNonNull: { | ||
| errorHandlingClient: false, | ||
| }, | ||
| }); | ||
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| const formattedContent = prettier.format(result.content); | ||
| expect(formattedContent).toMatchInlineSnapshot(` | ||
| "export type Unnamed_1_QueryVariables = Exact<{ [key: string]: never }>; | ||
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| export type Unnamed_1_Query = { | ||
| __typename?: "Query", | ||
| me?: { | ||
| __typename?: "User", | ||
| field?: string | null, | ||
| fieldLevel0?: string | null, | ||
| fieldLevel1?: string | null, | ||
| fieldBothLevels?: string | null, | ||
| list?: Array<string | null> | null, | ||
| listLevel0?: Array<string | null> | null, | ||
| listLevel1?: Array<string | null> | null, | ||
| listBothLevels?: Array<string | null> | null, | ||
| nonNullableList: Array<string | null>, | ||
| nonNullableListLevel0: Array<string | null>, | ||
| nonNullableListLevel1: Array<string | null>, | ||
| nonNullableListBothLevels: Array<string | null>, | ||
| listWithNonNullableItem?: Array<string> | null, | ||
| listWithNonNullableItemLevel0?: Array<string> | null, | ||
| listWithNonNullableItemLevel1?: Array<string> | null, | ||
| listWithNonNullableItemBothLevels?: Array<string> | null, | ||
| nonNullableListWithNonNullableItem: Array<string>, | ||
| nonNullableListWithNonNullableItemLevel0: Array<string>, | ||
| nonNullableListWithNonNullableItemLevel1: Array<string>, | ||
| nonNullableListWithNonNullableItemBothLevels: Array<string>, | ||
| } | null, | ||
| }; | ||
| " | ||
| `); | ||
| }); | ||
| }); |
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Perhaps, and this is just a suggestion, rename this to "semantic nullability" as a more generic term. If we were to accept a solution that used a document directive to enable the syntax, this is the likely name that we would use for that directive, and it doesn't tie the solution to one specific implementation. (GraphQL-SOCK can be updated to work with other solutions without any effort on your part.)