如果我知道对象是如何开始的，是否可以在对象中找到链接？

Question

我正在从API获得响应，我只对返回的一个链接感兴趣。我已经使用了一段时间

["data"]["tasks"]["0"]["result"]["files"]["0"]["url"] 

来获取URL，但似乎API已经改变了，现在是"结果"它在每次调用中改变位置0…

{"data": {
"id": "dcd99049-63b2",
"tag": "jobbuilder",
"status": "finished",
"created_at": "2022-11-22T21:57:28+00:00",
"started_at": "2022-11-22T21:57:28+00:00",
"ended_at": "2022-11-22T21:57:33+00:00",
"tasks": [
{
"id": "48c34a03-54f2",
"name": "task-2",
"job_id": "dcd99049-63b2",
"status": "finished",
"credits": 0,
"code": null,
"message": null,
"percent": 100,
"operation": "convert",
"engine": "qpdf",
"engine_version": "10.1.0",
"result": {
"files": [
{
"filename": "something.pdf",
"size": 633487
}
]
},
"created_at": "2022-11-22T21:57:30+00:00",
"started_at": "2022-11-22T21:57:32+00:00",
"ended_at": "2022-11-22T21:57:32+00:00",
"retry_of_task_id": null,
"copy_of_task_id": "dd64385a-a2e9",
"user_id": 6070,
"priority": 10,
"host_name": "meggie",
"storage": null,
"depends_on_task_ids": [
"dd64385a-a2e9",
"acfd2a2c-3c45"
],
"links": {
"self": "https://api.cloudconvert.com/v2/tasks/48c34a03-54f2"
}
},
{
"id": "6333e3b8-2f6f",
"name": "export-1",
"job_id": "dcd99049-63b2",
"status": "finished",
"credits": 0,
"code": null,
"message": null,
"percent": 100,
"operation": "export/url",
"result": {
"files": [
{
"filename": "something.pdf",
"size": 633487,
"url": "https://storage.cloudconvert.com/tasks/somethinglink.pdf"
}
]
},
"created_at": "2022-11-22T21:57:28+00:00",
"started_at": "2022-11-22T21:57:32+00:00",
"ended_at": "2022-11-22T21:57:32+00:00",
"retry_of_task_id": null,
"copy_of_task_id": null,
"user_id": 607,
"priority": 10,
"host_name": "meggie",
"storage": "ceph-fra",
"depends_on_task_ids": [
"48c34a03-54f2"
],
"links": {
"self": "https://api.cloudconvert.com/v2/tasks/6333e3b8-2f6f"
}
},
{
"id": "dd64385a-a2e9",
"name": "task-2-create-watermark",
"job_id": "dcd99049-63b2",
"status": "finished",
"credits": 1,
"code": null,
"message": null,
"percent": 100,
"operation": "watermark",
"engine": "imagemagick",
"engine_version": "7.1.0",
"result": {
"files": [
{
"filename": "watermark.pdf",
"size": 609229
}
]
},
"created_at": "2022-11-22T21:57:28+00:00",
"started_at": "2022-11-22T21:57:30+00:00",
"ended_at": "2022-11-22T21:57:32+00:00",
"retry_of_task_id": null,
"copy_of_task_id": null,
"user_id": 6070,
"priority": 10,
"host_name": "meggie",
"storage": "ceph-fra",
"depends_on_task_ids": [
"acfd2a2c-3c45-4e47"
],
"links": {
"self": "https://api.cloudconvert.com/v2/tasks/dd64385a-a2e9"
}
},
{
"id": "acfd2a2c-3c45-4e47",
"name": "task-1",
"job_id": "dcd99049-63b2",
"status": "finished",
"credits": 1,
"code": null,
"message": null,
"percent": 100,
"operation": "capture-website",
"engine": "wkhtml",
"engine_version": "0.12.5",
"result": {
"files": [
{
"filename": "something.pdf",
"size": 27330
}
]
},
"created_at": "2022-11-22T21:57:28+00:00",
"started_at": "2022-11-22T21:57:28+00:00",
"ended_at": "2022-11-22T21:57:30+00:00",
"retry_of_task_id": null,
"copy_of_task_id": null,
"user_id": 6070,
"priority": 10,
"host_name": "meggie",
"storage": null,
"depends_on_task_ids": [],
"links": {
"self": "https://api.cloudconvert.com/v2/tasks/acfd2a2c-3c45"
}
}
],
"links": {
"self": "https://api.cloudconvert.com/v2/jobs/dcd99049-63b2-443e"
}
}};

我想总是只提取链接:

https://storage.cloudconvert.com/tasks/somethinglink.pdf 

哪个位置可以像前面提到的那样改变…链接总是以https://storage.cloudconvert.com

开头我已经使用这个来访问数组

中的第一个对象一段时间了

["data"]["tasks"]["0"]["result"]["files"]["0"]["url"] 

但是如果链接在不同的位置，它似乎不起作用…

Answer 1

此代码将所有值提取为字符串，然后找到具有必要前缀的值:

const data = {"data":{"id":"dcd99049-63b2","tag":"jobbuilder","status":"finished","created_at":"2022-11-22T21:57:28+00:00","started_at":"2022-11-22T21:57:28+00:00","ended_at":"2022-11-22T21:57:33+00:00","tasks":[{"id":"48c34a03-54f2","name":"task-2","job_id":"dcd99049-63b2","status":"finished","credits":0,"code":null,"message":null,"percent":100,"operation":"convert","engine":"qpdf","engine_version":"10.1.0","result":{"files":[{"filename":"something.pdf","size":633487}]},"created_at":"2022-11-22T21:57:30+00:00","started_at":"2022-11-22T21:57:32+00:00","ended_at":"2022-11-22T21:57:32+00:00","retry_of_task_id":null,"copy_of_task_id":"dd64385a-a2e9","user_id":6070,"priority":10,"host_name":"meggie","storage":null,"depends_on_task_ids":["dd64385a-a2e9","acfd2a2c-3c45"],"links":{"self":"https://api.cloudconvert.com/v2/tasks/48c34a03-54f2"}},{"id":"6333e3b8-2f6f","name":"export-1","job_id":"dcd99049-63b2","status":"finished","credits":0,"code":null,"message":null,"percent":100,"operation":"export/url","result":{"files":[{"filename":"something.pdf","size":633487,"url":"https://storage.cloudconvert.com/tasks/somethinglink.pdf"}]},"created_at":"2022-11-22T21:57:28+00:00","started_at":"2022-11-22T21:57:32+00:00","ended_at":"2022-11-22T21:57:32+00:00","retry_of_task_id":null,"copy_of_task_id":null,"user_id":607,"priority":10,"host_name":"meggie","storage":"ceph-fra","depends_on_task_ids":["48c34a03-54f2"],"links":{"self":"https://api.cloudconvert.com/v2/tasks/6333e3b8-2f6f"}},{"id":"dd64385a-a2e9","name":"task-2-create-watermark","job_id":"dcd99049-63b2","status":"finished","credits":1,"code":null,"message":null,"percent":100,"operation":"watermark","engine":"imagemagick","engine_version":"7.1.0","result":{"files":[{"filename":"watermark.pdf","size":609229}]},"created_at":"2022-11-22T21:57:28+00:00","started_at":"2022-11-22T21:57:30+00:00","ended_at":"2022-11-22T21:57:32+00:00","retry_of_task_id":null,"copy_of_task_id":null,"user_id":6070,"priority":10,"host_name":"meggie","storage":"ceph-fra","depends_on_task_ids":["acfd2a2c-3c45-4e47"],"links":{"self":"https://api.cloudconvert.com/v2/tasks/dd64385a-a2e9"}},{"id":"acfd2a2c-3c45-4e47","name":"task-1","job_id":"dcd99049-63b2","status":"finished","credits":1,"code":null,"message":null,"percent":100,"operation":"capture-website","engine":"wkhtml","engine_version":"0.12.5","result":{"files":[{"filename":"something.pdf","size":27330}]},"created_at":"2022-11-22T21:57:28+00:00","started_at":"2022-11-22T21:57:28+00:00","ended_at":"2022-11-22T21:57:30+00:00","retry_of_task_id":null,"copy_of_task_id":null,"user_id":6070,"priority":10,"host_name":"meggie","storage":null,"depends_on_task_ids":[],"links":{"self":"https://api.cloudconvert.com/v2/tasks/acfd2a2c-3c45"}}],"links":{"self":"https://api.cloudconvert.com/v2/jobs/dcd99049-63b2-443e"}}}
const f=i=>i instanceof Object?Object.values(i).flatMap(v=>f(v)):[i+'']
console.log(f(data).find(i=>
i.startsWith('https://storage.cloudconvert.com/tasks/')))