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feat: add custom json serializer support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| import { JsonSerializer } from "./types.dom"; | ||
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| export const defaultJsonSerializer: JsonSerializer = { | ||
| parse: JSON.parse, | ||
| stringify: JSON.stringify | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| import { createReadStream } from 'fs' | ||
| import { join } from 'path' | ||
| import { GraphQLClient } from '../src' | ||
| import { setupTestServer } from './__helpers' | ||
| import * as Dom from '../src/types.dom' | ||
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| const ctx = setupTestServer() | ||
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| describe('jsonSerializer option', () => { | ||
| let serializer: Dom.JsonSerializer; | ||
| const testData = { data: { test: { name: 'test' } } } | ||
| let fetch: any; | ||
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| beforeEach(() => { | ||
| serializer = { | ||
| stringify: jest.fn(JSON.stringify), | ||
| parse: jest.fn(JSON.parse) | ||
| } | ||
| fetch = (url: string) => Promise.resolve({ | ||
| headers: new Map([['Content-Type', 'application/json; charset=utf-8']]), | ||
| data: testData, | ||
| text: function () { | ||
| return JSON.stringify(testData) | ||
| }, | ||
| ok: true, | ||
| status: 200, | ||
| url, | ||
| }); | ||
| }) | ||
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| test('is used for parsing response body', async () => { | ||
| const options: Dom.RequestInit = { jsonSerializer: serializer, fetch }; | ||
| const client: GraphQLClient = new GraphQLClient(ctx.url, options); | ||
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| const result = await client.request('{ test { name } }') | ||
| expect(result).toEqual(testData.data) | ||
| expect(serializer.parse).toBeCalledTimes(1) | ||
| }) | ||
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| describe('is used for serializing variables', () => { | ||
| const document = 'query getTest($name: String!) { test(name: $name) { name } }' | ||
| const simpleVariable = { name: 'test' } | ||
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| let options: Dom.RequestInit | ||
| let client: GraphQLClient | ||
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| const testSingleQuery = (expectedNumStringifyCalls = 1, variables: any = simpleVariable) => async () => { | ||
| await client.request(document, variables) | ||
| expect(serializer.stringify).toBeCalledTimes(expectedNumStringifyCalls) | ||
| } | ||
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| const testBatchQuery = (expectedNumStringifyCalls: number, variables: any = simpleVariable) => async () => { | ||
| await client.batchRequests([{document, variables}]) | ||
| expect(serializer.stringify).toBeCalledTimes(expectedNumStringifyCalls) | ||
| } | ||
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| describe('request body', () => { | ||
| beforeEach(() => { | ||
| options = { jsonSerializer: serializer, fetch } | ||
| client = new GraphQLClient(ctx.url, options) | ||
| }) | ||
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| describe('without files', () => { | ||
| test('single query', testSingleQuery()) | ||
| test('batch query', testBatchQuery(1)) | ||
| }) | ||
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| describe('with files', () => { | ||
| const fileName = 'upload.test.ts' | ||
| const file = createReadStream(join(__dirname, fileName)) | ||
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| test('single query', testSingleQuery(2, {...simpleVariable, file})) | ||
| test('batch query', testBatchQuery(2, {...simpleVariable, file})) | ||
| }) | ||
| }) | ||
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| describe('query string', () => { | ||
| beforeEach(() => { | ||
| options = { jsonSerializer: serializer, fetch, method: 'GET' } | ||
| client = new GraphQLClient(ctx.url, options) | ||
| }) | ||
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| test('single query', testSingleQuery()) | ||
| test('batch query', testBatchQuery(2)) // once for variable and once for query batch array | ||
| }) | ||
| }) | ||
| }) |