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TypeScript graphql-subscriptions.PubSub类代码示例

本文整理汇总了TypeScript中graphql-subscriptions.PubSub的典型用法代码示例。如果您正苦于以下问题:TypeScript PubSub类的具体用法?TypeScript PubSub怎么用?TypeScript PubSub使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


在下文中一共展示了PubSub类的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。

示例1: addCount

export const resolver = (pubsub: PubSub, logger?: Logger) => ({
    Query: {
        count(obj, args, context: { Count: ICounterRepository }) {
            logger.debug('quering the count table');
            return context.Count.getCount();
        },
    },
    Mutation: {
        async addCount(obj, { amount }, context: { Count: ICounterRepository }) {
            logger.debug('adding count...');

            await context.Count.addCount(amount);
            let count = await context.Count.getCount();
            logger.debug('added count and the amount is {%j} ', count);
            pubsub.publish(COUNT_UPDATED_TOPIC, { subscribeToCount: { amount: count.amount } });
            return count;
        },
    },
    Subscription: {
        subscribeToCount: {
            subscribe: () => pubsub.asyncIterator(COUNT_UPDATED_TOPIC),
        },
    },
});
开发者ID:baotaizhang,项目名称:fullstack-pro,代码行数:24,代码来源:resolvers.ts

示例2: describe

  describe('addSchemaLevelResolveFunction', () => {
    const pubsub = new PubSub();
    const typeDefs = `
      type RootQuery {
        printRoot: String!
        printRootAgain: String!
      }

      type RootMutation {
        printRoot: String!
      }

      type RootSubscription {
        printRoot: String!
      }

      schema {
        query: RootQuery
        mutation: RootMutation
        subscription: RootSubscription
      }
    `;
    const printRoot = (root: any) => root.toString();
    const resolvers = {
      RootQuery: {
        printRoot,
        printRootAgain: printRoot,
      },
      RootMutation: {
        printRoot,
      },
      RootSubscription: {
        printRoot: {
          subscribe: () => pubsub.asyncIterator('printRootChannel'),
        },
      },
    };
    const schema = makeExecutableSchema({ typeDefs, resolvers });
    let schemaLevelResolveFunctionCalls = 0;
    addSchemaLevelResolveFunction(schema, root => {
      schemaLevelResolveFunctionCalls += 1;
      return root;
    });

    it('should run the schema level resolver once in a same query', () => {
      schemaLevelResolveFunctionCalls = 0;
      const root = 'queryRoot';
      return graphql(
        schema,
        `
          query TestOnce {
            printRoot
            printRootAgain
          }
        `,
        root,
      ).then(({ data }) => {
        assert.deepEqual(data, {
          printRoot: root,
          printRootAgain: root,
        });
        assert.equal(schemaLevelResolveFunctionCalls, 1);
      });
    });

    it('should isolate roots from the different operation types', done => {
      schemaLevelResolveFunctionCalls = 0;
      const queryRoot = 'queryRoot';
      const mutationRoot = 'mutationRoot';
      const subscriptionRoot = 'subscriptionRoot';
      const subscriptionRoot2 = 'subscriptionRoot2';

      let subsCbkCalls = 0;
      const firstSubsTriggered = new Promise(resolveFirst => {
        subscribe(
          schema,
          parse(`
            subscription TestSubscription {
              printRoot
            }
          `),
        )
          .then(results => {
            forAwaitEach(
              results as AsyncIterable<ExecutionResult>,
              (result: ExecutionResult) => {
                if (result.errors) {
                  return done(
                    new Error(
                      `Unexpected errors in GraphQL result: ${result.errors}`,
                    ),
                  );
                }

                const subsData = result.data;
                subsCbkCalls++;
                try {
                  if (subsCbkCalls === 1) {
                    assert.equal(schemaLevelResolveFunctionCalls, 1);
                    assert.deepEqual(subsData, { printRoot: subscriptionRoot });
//.........这里部分代码省略.........
开发者ID:apollostack,项目名称:graphql-tools,代码行数:101,代码来源:testResolution.ts

示例3: done

    it('should isolate roots from the different operation types', done => {
      schemaLevelResolveFunctionCalls = 0;
      const queryRoot = 'queryRoot';
      const mutationRoot = 'mutationRoot';
      const subscriptionRoot = 'subscriptionRoot';
      const subscriptionRoot2 = 'subscriptionRoot2';

      let subsCbkCalls = 0;
      const firstSubsTriggered = new Promise(resolveFirst => {
        subscribe(
          schema,
          parse(`
            subscription TestSubscription {
              printRoot
            }
          `),
        )
          .then(results => {
            forAwaitEach(
              results as AsyncIterable<ExecutionResult>,
              (result: ExecutionResult) => {
                if (result.errors) {
                  return done(
                    new Error(
                      `Unexpected errors in GraphQL result: ${result.errors}`,
                    ),
                  );
                }

                const subsData = result.data;
                subsCbkCalls++;
                try {
                  if (subsCbkCalls === 1) {
                    assert.equal(schemaLevelResolveFunctionCalls, 1);
                    assert.deepEqual(subsData, { printRoot: subscriptionRoot });
                    return resolveFirst();
                  } else if (subsCbkCalls === 2) {
                    assert.equal(schemaLevelResolveFunctionCalls, 4);
                    assert.deepEqual(subsData, {
                      printRoot: subscriptionRoot2,
                    });
                    return done();
                  }
                } catch (e) {
                  return done(e);
                }
                done(new Error('Too many subscription fired'));
              },
            ).catch(done);
          })
          .catch(done);
      });

      pubsub.publish('printRootChannel', { printRoot: subscriptionRoot });

      firstSubsTriggered
        .then(() =>
          graphql(
            schema,
            `
              query TestQuery {
                printRoot
              }
            `,
            queryRoot,
          ),
        )
        .then(({ data }) => {
          assert.equal(schemaLevelResolveFunctionCalls, 2);
          assert.deepEqual(data, { printRoot: queryRoot });
          return graphql(
            schema,
            `
              mutation TestMutation {
                printRoot
              }
            `,
            mutationRoot,
          );
        })
        .then(({ data: mutationData }) => {
          assert.equal(schemaLevelResolveFunctionCalls, 3);
          assert.deepEqual(mutationData, { printRoot: mutationRoot });
          pubsub.publish('printRootChannel', { printRoot: subscriptionRoot2 });
        })
        .catch(done);
    });
开发者ID:apollostack,项目名称:graphql-tools,代码行数:87,代码来源:testResolution.ts

示例4:

 subscribe: () => pubsub.asyncIterator(COUNT_UPDATED_TOPIC),
开发者ID:baotaizhang,项目名称:fullstack-pro,代码行数:1,代码来源:resolvers.ts

示例5:

 subscribe: () => pubsub.asyncIterator('printRootChannel'),
开发者ID:apollostack,项目名称:graphql-tools,代码行数:1,代码来源:testResolution.ts


注:本文中的graphql-subscriptions.PubSub类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。