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我正在通过requestNPM 模块获取缓冲区，并从该缓冲区中使用另一个模块解析 pdf pdf-parse。在执行 zap 时，我收到以下错误：

未处理的错误：CheckError：无效的 API 响应：-得到一个非对象结果，预期来自 create() 的对象

下面是我的行动代码

var utils = require('../utils/utils.js')
const pdf = require('pdf-parse');
var isMetaData = false;
var request = require('request').defaults({ encoding: null });
let a = {}

const register = (z, bundle) => {
    var url = bundle.inputData.value
    getMetaData(url, z).then((a) => {
        return a
    });
    z.console.log("Process started")

};


function getMetaData(url, z) {
    z.console.log("In getmetadata");

    return new Promise((resolve, reject) => {
        request({ url, encoding: null }, (err, resp, buffer) => {
            z.console.log("In request response");

            pdf(buffer).then(function (data) {
                var mdata = data.metadata;
                var filtered = {}
                for (key in mdata._metadata) {
                    if (key.match(/^pdfx:blockchain/)) filtered[key] = mdata[key];
                }
                if (Object.keys(filtered).length === 1) {
                    isMetaData = true
                }
                a.isMetaData = isMetaData
                resolve(a);
                z.console.log("a value set");
            });
        });
    });
}

Zap 的日志：

- - - - - - - - - - - - - - - - - - 

== Log
Process started
== Version
0.1.6
== Step
50c914b6-03be-49ee-bd94-469e81811578
== Timestamp
2019-08-18T06:13:49-05:00

 - - - - - - - - - - - - - - - - - - 

== Log
In getmetadata
== Version
0.1.6
== Step
50c914b6-03be-49ee-bd94-469e81811578
== Timestamp
2019-08-18T06:13:49-05:00

 - - - - - - - - - - - - - - - - - - 

== Log
Unhandled error: CheckError: Invalid API Response:
  - Got a non-object result, expected an object from create ()
What happened:
  Executing creates.register.operation.perform with bundle
  Invalid API Response:
  - Got a non-object result, expected an object from create ()
CheckError: Invalid API Response:
  - Got a non-object result, expected an object from create ()
    at checkOutput (:censored:9:d1ba0cf2aa:/node_modules/zapier-platform-core/src/app-middlewares/after/checks.js:37:15)
    at Object.collector.then.newOutput (:censored:9:d1ba0cf2aa:/node_modules/zapier-platform-core/src/middleware.js:80:37)
    at bound (domain.js:301:14)
    at Object.runBound (domain.js:314:12)
    at Object.tryCatcher (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromiseCtx (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/promise.js:606:10)
    at Async._drainQueue (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/async.js:138:12)
    at Async._drainQueues (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/async.js:143:10)
    at Immediate.Async.drainQueues (:censored:9:d1ba0cf2aa:/node_modules/bluebird/js/release/async.js:17:14)
    at runCallback (timers.js:794:20)
    at tryOnImmediate (timers.js:752:5)
    at processImmediate [as _immediateCallback] (timers.js:729:5)
== Version
0.1.6
== Step
sdf-03be-49ee-bd94-463481811578
== Timestamp
2019-08-18T06:13:49-05:00

 - - - - - - - - - - - - - - - - - - 

== Log
In request response
== Version
0.1.6
== Step
ddwrr345e-sad-49ee-bd94-fsd34535
== Timestamp
2019-08-18T06:13:49-05:00
4

1 回答 1

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大卫在这里，来自 Zapier 平台团队。

您的perform函数需要返回一个 JS 对象（包含在 中的东西{}）。要使错误消失，请确保您的承诺返回一些东西。

最简单的方法如下：

return new Promise((resolve, reject) => {
  request({ url, encoding: null }, (err, resp, buffer) => {
            // ...
}).then(myPdf => {
  return {pdf: myPdf} // <-- an object
})

也就是说，我不确定编写的代码是否会使文件在以后的步骤中作为文件对象可用。我会在https://zapier.github.io/zapier-platform/#stashing-files查看文档

于 2019-08-22T02:18:55.153 回答