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feat: Add minifyJson param to request minified JSON responses when using the REST fallback #1632

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feat: Add minifyJson param to request minified JSON responses when using the REST fallback #1632

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a57c3cf
fix: Disable pretty-print for JSON reponses when using the REST fallback
MarkDuckworth Jul 11, 2024
dc4b9e0
Investigating CI issue with failing numeric enum tests.
MarkDuckworth Jul 11, 2024
1fe50ae
Fix failing CI tests.
MarkDuckworth Jul 11, 2024
96d2acd
Additional test fixes.
MarkDuckworth Jul 11, 2024
47417e4
Add opt-in setting minifyJson and tests.
MarkDuckworth Jul 12, 2024
ee55874
Tweaks for code review comments.
MarkDuckworth Jul 18, 2024
9a2a1a0
More cleanup.
MarkDuckworth Jul 18, 2024
8e62154
Merge branch 'main' into markduckworth/disable-prettyprint-json
d-goog Aug 30, 2024
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5 changes: 4 additions & 1 deletion gax/src/fallback.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,7 @@ export class GrpcClient {
private static protoCache = new Map<string, protobuf.Root>();
httpRules?: Array<google.api.IHttpRule>;
numericEnums: boolean;
minifyJson: boolean;
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/**
* In rare cases users might need to deallocate all memory consumed by loaded protos.
Expand Down Expand Up @@ -144,6 +145,7 @@ export class GrpcClient {
this.grpcVersion = require('../../package.json').version;
this.httpRules = (options as GrpcClientOptions).httpRules;
this.numericEnums = (options as GrpcClientOptions).numericEnums ?? false;
this.minifyJson = (options as GrpcClientOptions).minifyJson ?? false;
}

/**
Expand Down Expand Up @@ -343,7 +345,8 @@ export class GrpcClient {
this.authClient,
encoder,
decoder,
this.numericEnums
this.numericEnums,
this.minifyJson
);

return serviceStub;
Expand Down
10 changes: 9 additions & 1 deletion gax/src/fallbackRest.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,8 @@ export function encodeRequest(
servicePath: string,
servicePort: number,
request: {},
numericEnums: boolean
numericEnums: boolean,
minifyJson: boolean
): FetchParameters {
const headers: {[key: string]: string} = {
'Content-Type': 'application/json',
Expand Down Expand Up @@ -61,6 +62,13 @@ export function encodeRequest(
'$alt=json%3Benum-encoding=int';
}

// If minifyJson feature is requested, disable pretty-print JSON responses
if (minifyJson) {
transcoded.queryString =
(transcoded.queryString ? `${transcoded.queryString}&` : '') +
'$prettyPrint=0';
}

// Converts httpMethod to method that permitted in standard Fetch API spec
// https://fetch.spec.whatwg.org/#methods
const method = transcoded.httpMethod.toUpperCase() as FetchParametersMethod;
Expand Down
9 changes: 6 additions & 3 deletions gax/src/fallbackServiceStub.ts
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Expand Up @@ -61,14 +61,16 @@ export function generateServiceStub(
servicePath: string,
servicePort: number,
request: {},
numericEnums: boolean
numericEnums: boolean,
minifyJson: boolean
) => FetchParameters,
responseDecoder: (
rpc: protobuf.Method,
ok: boolean,
response: Buffer | ArrayBuffer
) => {},
numericEnums: boolean
numericEnums: boolean,
minifyJson: boolean
) {
const fetch = hasWindowFetch()
? window.fetch
Expand Down Expand Up @@ -100,7 +102,8 @@ export function generateServiceStub(
servicePath,
servicePort,
request,
numericEnums
numericEnums,
minifyJson
);
} catch (err) {
// we could not encode parameters; pass error to the callback
Expand Down
1 change: 1 addition & 0 deletions gax/src/grpc.ts
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Expand Up @@ -47,6 +47,7 @@ const COMMON_PROTO_FILES: string[] = commonProtoFiles.map(file =>
export interface GrpcClientOptions extends GoogleAuthOptions {
auth?: GoogleAuth;
grpc?: GrpcModule;
minifyJson?: boolean;
protoJson?: protobuf.Root;
httpRules?: Array<google.api.IHttpRule>;
numericEnums?: boolean;
Expand Down
103 changes: 101 additions & 2 deletions gax/test/unit/regapic.ts
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Expand Up @@ -50,6 +50,7 @@ const opts = {
describe('REGAPIC', () => {
let gaxGrpc: GrpcClient,
gaxGrpcNumericEnums: GrpcClient,
gaxGrpcMinifyJson: GrpcClient,
protos: protobuf.NamespaceBase,
libProtos: protobuf.NamespaceBase,
echoService: protobuf.Service,
Expand All @@ -67,6 +68,10 @@ describe('REGAPIC', () => {
...opts,
numericEnums: true,
});
gaxGrpcMinifyJson = new GrpcClient({
...opts,
minifyJson: true,
});
protos = gaxGrpc.loadProto(echoProtoJson);
echoService = protos.lookupService('Echo');
const TEST_JSON = path.resolve(
Expand Down Expand Up @@ -337,8 +342,12 @@ describe('REGAPIC', () => {
.then(libStub => {
libStub.createShelf(requestObject, {}, {}, (err?: {}) => {
assert.strictEqual(
spy.getCall(0).returnValue?.queryString,
'$alt=json%3Benum-encoding=int'
'string',
typeof spy.getCall(0).returnValue?.queryString
);
assert.match(
<string>spy.getCall(0).returnValue?.queryString,
/\$alt=json%3Benum-encoding=int(&.*)?$/
);
assert.strictEqual(err, null);
done();
Expand Down Expand Up @@ -569,4 +578,94 @@ describe('REGAPIC', () => {
}, /* catch: */ done);
});
});

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should we also add a test that confirms the response was minified? it seems like we're testing data integrity and that we're sending the prettyPrint request, but maybe we could also see if the actual size of the response is smaller. We have a similar test here that could be useful!

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I agree that this test would be useful, but I think it requires a system test that hits a real service endpoint. It's not clear to me how to implement that.

describe('should support json minification', () => {
it('should send prettyPrint=0 when json minification is requested', done => {
const requestObject = {name: 'shelves/shelf-name'};
const responseObject = {
name: 'shelf-name',
theme: 'shelf-theme',
type: 100, // unknown enum value
};
const spy = sinon.spy(transcoding, 'transcode');
// incomplete types for nodeFetch, so...
// eslint-disable-next-line @typescript-eslint/no-explicit-any
sinon.stub(nodeFetch, 'Promise' as any).returns(
Promise.resolve({
ok: true,
arrayBuffer: () => {
return Promise.resolve(Buffer.from(JSON.stringify(responseObject)));
},
})
);

gaxGrpcMinifyJson
.createStub(libraryService, stubOptions)
.then(libStub => {
libStub.getShelf(requestObject, {}, {}, (err?: {}, result?: {}) => {
assert.strictEqual(
'string',
typeof spy.getCall(0).returnValue?.queryString
);
assert.match(
<string>spy.getCall(0).returnValue?.queryString,
/\$prettyPrint=0(&.*)?$/
);
assert.strictEqual(err, null);
assert.strictEqual(
'shelf-name',
(result as {name: {}; theme: {}; type: {}}).name
);
assert.strictEqual(
100,
(result as {name: {}; theme: {}; type: {}}).type
);
done();
});
}, /* catch: */ done);
});

it('should not send prettyPrint setting when json minification is not requested', done => {
const requestObject = {name: 'shelves/shelf-name'};
const responseObject = {
name: 'shelf-name',
theme: 'shelf-theme',
type: 100, // unknown enum value
};
const spy = sinon.spy(transcoding, 'transcode');
// incomplete types for nodeFetch, so...
// eslint-disable-next-line @typescript-eslint/no-explicit-any
sinon.stub(nodeFetch, 'Promise' as any).returns(
Promise.resolve({
ok: true,
arrayBuffer: () => {
return Promise.resolve(Buffer.from(JSON.stringify(responseObject)));
},
})
);

gaxGrpc.createStub(libraryService, stubOptions).then(libStub => {
libStub.getShelf(requestObject, {}, {}, (err?: {}, result?: {}) => {
assert.strictEqual(
'string',
typeof spy.getCall(0).returnValue?.queryString
);
assert.doesNotMatch(
<string>spy.getCall(0).returnValue?.queryString,
/prettyPrint/
);
assert.strictEqual(err, null);
assert.strictEqual(
'shelf-name',
(result as {name: {}; theme: {}; type: {}}).name
);
assert.strictEqual(
100,
(result as {name: {}; theme: {}; type: {}}).type
);
done();
});
}, /* catch: */ done);
});
});
});
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