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feat(incremental): do not initiate multiple streams at the same path #3830

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feat(incremental): do not initiate multiple streams at the same path #3830

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2b50a8b
introduce GroupedFieldSet and FieldGroup types
yaacovCR Jan 14, 2023
5a02b08
remove labels
yaacovCR Jan 8, 2023
086c92e
try aggressive merging
yaacovCR Jan 8, 2023
1236b1f
memoize Path generation so paths can be used as keys directly across …
yaacovCR Jan 14, 2023
8bbf2d8
expose all of the execution environment to resolvers
yaacovCR Jan 14, 2023
4ccc4c7
rename iterators to asyncIterators where appropriate
yaacovCR Jan 17, 2023
d4af81f
introduce executeStreamIterator
yaacovCR Jan 17, 2023
835fa56
do not initiate multiple streams at the same path
yaacovCR Jan 17, 2023
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425 changes: 405 additions & 20 deletions src/execution/__tests__/defer-test.ts
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43 changes: 27 additions & 16 deletions src/execution/__tests__/executor-test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,12 @@ import { expectJSON } from '../../__testUtils__/expectJSON.js';
import { resolveOnNextTick } from '../../__testUtils__/resolveOnNextTick.js';

import { inspect } from '../../jsutils/inspect.js';
import type { Path } from '../../jsutils/Path.js';

import { Kind } from '../../language/kinds.js';
import { parse } from '../../language/parser.js';

import type { GraphQLResolveInfo } from '../../type/definition.js';
import {
GraphQLInterfaceType,
GraphQLList,
Expand Down Expand Up @@ -191,7 +193,7 @@ describe('Execute: Handles basic execution tasks', () => {
});

it('provides info about current execution state', () => {
let resolvedInfo;
let resolvedInfo: GraphQLResolveInfo | undefined;
const testType = new GraphQLObjectType({
name: 'Test',
fields: {
Expand All @@ -213,7 +215,8 @@ describe('Execute: Handles basic execution tasks', () => {

expect(resolvedInfo).to.have.all.keys(
'fieldName',
'fieldNodes',
'fieldGroup',
'deferDepth',
'returnType',
'parentType',
'path',
Expand All @@ -236,16 +239,22 @@ describe('Execute: Handles basic execution tasks', () => {
operation,
});

const field = operation.selectionSet.selections[0];
const fieldNode = operation.selectionSet.selections[0];
expect(resolvedInfo).to.deep.include({
fieldNodes: [field],
path: { prev: undefined, key: 'result', typename: 'Test' },
fieldGroup: [{ fieldNode, depth: 0, deferDepth: undefined }],
deferDepth: undefined,
variableValues: { var: 'abc' },
});

expect(resolvedInfo?.path).to.deep.include({
prev: undefined,
key: 'result',
typename: 'Test',
});
});

it('populates path correctly with complex types', () => {
let path;
let path: Path | undefined;
const someObject = new GraphQLObjectType({
name: 'SomeObject',
fields: {
Expand Down Expand Up @@ -288,18 +297,20 @@ describe('Execute: Handles basic execution tasks', () => {

executeSync({ schema, document, rootValue });

expect(path).to.deep.equal({
expect(path).to.deep.include({
key: 'l2',
typename: 'SomeObject',
prev: {
key: 0,
typename: undefined,
prev: {
key: 'l1',
typename: 'SomeQuery',
prev: undefined,
},
},
});

expect(path?.prev).to.deep.include({
key: 0,
typename: undefined,
});

expect(path?.prev?.prev).to.deep.include({
key: 'l1',
typename: 'SomeQuery',
prev: undefined,
});
});

Expand Down
6 changes: 2 additions & 4 deletions src/execution/__tests__/mutations-test.ts
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Expand Up @@ -206,7 +206,7 @@ describe('Execute: Handles mutation execution ordering', () => {
const document = parse(`
mutation M {
first: promiseToChangeTheNumber(newNumber: 1) {
...DeferFragment @defer(label: "defer-label")
...DeferFragment @defer
},
second: immediatelyChangeTheNumber(newNumber: 2) {
theNumber
Expand Down Expand Up @@ -242,7 +242,6 @@ describe('Execute: Handles mutation execution ordering', () => {
{
incremental: [
{
label: 'defer-label',
path: ['first'],
data: {
promiseToGetTheNumber: 2,
Expand Down Expand Up @@ -281,7 +280,7 @@ describe('Execute: Handles mutation execution ordering', () => {
it('Mutation with @defer is not executed serially', async () => {
const document = parse(`
mutation M {
...MutationFragment @defer(label: "defer-label")
...MutationFragment @defer
second: immediatelyChangeTheNumber(newNumber: 2) {
theNumber
}
Expand Down Expand Up @@ -317,7 +316,6 @@ describe('Execute: Handles mutation execution ordering', () => {
{
incremental: [
{
label: 'defer-label',
path: [],
data: {
first: {
Expand Down
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