Question

我正在使用Python（3.6）＆amp ;; Django（1.10），我需要使用API请求在Google云上创建一个函数。

如何在创建该功能时以zip存档的形式上传代码？

以下是我的尝试：

来自views.py：

    def post(self, request, *args, **kwargs):
    if request.method == 'POST':
        post_data = request.POST.copy()
        post_data.update({'user': request.user.pk})
        form = forms.SlsForm(post_data, request.FILES)
        print('get post request')
        if form.is_valid():
            func_obj = form
            func_obj.user = request.user
            func_obj.project = form.cleaned_data['project']
            func_obj.fname = form.cleaned_data['fname']
            func_obj.fmemory = form.cleaned_data['fmemory']
            func_obj.entryPoint = form.cleaned_data['entryPoint']
            func_obj.sourceFile = form.cleaned_data['sourceFile']
            func_obj.sc_github = form.cleaned_data['sc_github']
            func_obj.sc_inline_index = form.cleaned_data['sc_inline_index']
            func_obj.sc_inline_package = form.cleaned_data['sc_inline_package']
            func_obj.bucket = form.cleaned_data['bucket']
            func_obj.save()
            service = discovery.build('cloudfunctions', 'v1', http=views.getauth(), cache_discovery=False)
            requ = service.projects().locations().functions().generateUploadUrl(parent='projects/' + func_obj.project + '/locations/us-central1', body={})
            resp = requ.execute()
            print(resp)
            try:
                auth = views.getauth()
                # Prepare Request Body
                req_body = {
                    "CloudFunction": {
                        "name": func_obj.fname,
                        "entryPoint": func_obj.entryPoint,
                        "timeout": '60s',
                        "availableMemoryMb": func_obj.fmemory,
                        "sourceArchiveUrl": func_obj.sc_github,
                    },
                    "sourceUploadUrl": func_obj.bucket,
                }
                service = discovery.build('cloudfunctions', 'v1beta2', http=auth, cachce_dicovery=False)
                func_req = service.projects().locations().functions().create(location='projects/' + func_obj.project
                                                                                      + '/locations/-',
                                                                             body=req_body)
                func_res = func_req.execute()
                print(func_res)
                return HttpResponse('Submitted',)
            except:
                return HttpResponse(status=500)

        return HttpResponse('Sent!')

以下更新的代码：

            if form.is_valid():
            func_obj = form
            func_obj.user = request.user
            func_obj.project = form.cleaned_data['project']
            func_obj.fname = form.cleaned_data['fname']
            func_obj.fmemory = form.cleaned_data['fmemory']
            func_obj.entryPoint = form.cleaned_data['entryPoint']
            func_obj.sourceFile = form.cleaned_data['sourceFile']
            func_obj.sc_github = form.cleaned_data['sc_github']
            func_obj.sc_inline_index = form.cleaned_data['sc_inline_index']
            func_obj.sc_inline_package = form.cleaned_data['sc_inline_package']
            func_obj.bucket = form.cleaned_data['bucket']
            func_obj.save()

            #######################################################################
            # FIRST APPROACH FOR FUNCTION CREATION USING STORAGE BUCKET
            #######################################################################

            file_name = os.path.join(IGui.settings.BASE_DIR, 'media/archives/', func_obj.sourceFile.name)
            print(file_name)

            service = discovery.build('cloudfunctions', 'v1')
            func_api = service.projects().locations().functions()
            url_svc_req = func_api.generateUploadUrl(parent='projects/'
                                                            + func_obj.project
                                                            + '/locations/us-central1',
                                                     body={})
            url_svc_res = url_svc_req.execute()
            print(url_svc_res)

            upload_url = url_svc_res['uploadUrl']
            print(upload_url)
            headers = {
                'content-type': 'application/zip',
                'x-goog-content-length-range': '0,104857600'
            }
            print(requests.put(upload_url, headers=headers, data=func_obj.sourceFile.name))
            auth = views.getauth()
            # Prepare Request Body
            name = "projects/{}/locations/us-central1/functions/{}".format(func_obj.project, func_obj.fname,)
            print(name)
            req_body = {
              "name": name,
              "entryPoint": func_obj.entryPoint,
              "timeout": "3.5s",
              "availableMemoryMb": func_obj.fmemory,
              "sourceUploadUrl": upload_url,
              "httpsTrigger": {},
            }
            service = discovery.build('cloudfunctions', 'v1')
            func_api = service.projects().locations().functions()

            response = func_api.create(location='projects/' + func_obj.project + '/locations/us-central1',
                                                body=req_body).execute()

            pprint.pprint(response)

现在该功能已成功创建，但由于源代码没有上传到存储桶而失败，可能是错误的：

upload_url = url_svc_res['uploadUrl']
            print(upload_url)
            headers = {
                'content-type': 'application/zip',
                'x-goog-content-length-range': '0,104857600'
            }
            print(requests.put(upload_url, headers=headers, data=func_obj.sourceFile.name))

Answer 1

在请求正文中，您有一个字典＆＃34; CloudFunction＆＃34;在请求中。＆＃34; CloudFunction＆＃34;的内容应该直接在请求中。

request_body = {
    "name": parent + '/functions/' + name,
    "entryPoint": entry_point,
    "sourceUploadUrl": upload_url,
    "httpsTrigger": {}
}

我建议使用"Try this API"来发现projects.locations.functions.create的结构。

"sourceArchiveUrl"和"sourceUploadUrl"无法一起显示。这在Resorce Cloud Function：

中有解释

// Union field source_code can be only one of the following:
"sourceArchiveUrl": string,
"sourceRepository": { object(SourceRepository) },
"sourceUploadUrl": string,
// End of list of possible types for union field source_code.

在答案的其余部分，我假设您要使用"sourceUploadUrl"。它要求您传递.generateUploadUrl(...).execute()返回给您的网址。见documentation：

sourceUploadUrl - ＆gt;的字符串

用于源上传的Google云端存储签名网址，   由[google.cloud.functions.v1。 GenerateUploadUrl ] []
生成

但在传递之前，您需要将zip文件上传到此网址：

curl -X PUT "${URL}" -H 'content-type:application/zip' -H 'x-goog-content-length-range: 0,104857600' -T test.zip

或在python中：

headers = { 'content-type':'application/zip', 'x-goog-content-length-range':'0,104857600' } print(requests.put(upload_url, headers=headers, data=data))

这是最棘手的部分：

案件很重要，应该是小写的。因为签名是根据哈希（here）

计算的

您需要＆＃39;内容类型＆＃39;：＆＃39; application / zip＆＃39;。我在逻辑上推断出这个，因为文档没有提到它。（here）

x-goog-content-length-range: min,max对于所有PUT云存储请求都是强制性的，在这种情况下会隐式假设。更多信息here

104857600，上一个条目中的最大值，是一个神奇的数字，我在任何地方都没有找到。

其中data是FileLikeObject。

我还假设您要使用httpsTrigger。对于云功能，您只能选择一个触发字段。 Here它说触发器是联盟字段。但是对于httpsTrigger，您可以将其保留为空字典，因为其内容不会影响结果。截至目前。

request_body = { "name": parent + '/functions/' + name, "entryPoint": entry_point, "sourceUploadUrl": upload_url, "httpsTrigger": {} }

您可以安全地使用＆＃39; v1＆＃39;而不是＆＃39; v1beta2＆＃39; .create()。

这是一个完整的工作示例。如果我将它作为代码的一部分呈现给您，那将会很复杂，但您可以轻松地将其集成。

import pprint import zipfile import requests from tempfile import TemporaryFile from googleapiclient import discovery project_id = 'your_project_id' region = 'us-central1' parent = 'projects/{}/locations/{}'.format(project_id, region) print(parent) name = 'ExampleFunctionFibonacci' entry_point = "fibonacci" service = discovery.build('cloudfunctions', 'v1') CloudFunctionsAPI = service.projects().locations().functions() upload_url = CloudFunctionsAPI.generateUploadUrl(parent=parent, body={}).execute()['uploadUrl'] print(upload_url) payload = """/** * Responds to any HTTP request that can provide a "message" field in the body. * * @param {Object} req Cloud Function request context. * @param {Object} res Cloud Function response context. */ exports.fib = function """ + entry_point + """ (req, res) { if (req.body.message === undefined) { // This is an error case, as "message" is required res.status(400).send('No message defined!'); } else { // Everything is ok console.log(req.body.message); res.status(200).end(); } };""" with TemporaryFile() as data: with zipfile.ZipFile(data, 'w', zipfile.ZIP_DEFLATED) as archive: archive.writestr('function.js', payload) data.seek(0) headers = { 'content-type':'application/zip', 'x-goog-content-length-range':'0,104857600' } print(requests.put(upload_url, headers=headers, data=data)) # Prepare Request Body # https://cloud.google.com/functions/docs/reference/rest/v1/projects.locations.functions#resource-cloudfunction request_body = { "name": parent + '/functions/' + name, "entryPoint": entry_point, "sourceUploadUrl": upload_url, "httpsTrigger": {} } print('https://[YOUR_REGION]-[YOUR_PROJECT_ID].cloudfunctions.net/[NAME_OF_THE_TRIGGER]'.format) response = CloudFunctionsAPI.create(location=parent, body=request_body).execute() pprint.pprint(response)

打开并上传如下的zip文件：

file_name = os.path.join(IGui.settings.BASE_DIR, 'media/archives/', func_obj.sourceFile.name) headers = { 'content-type': 'application/zip', 'x-goog-content-length-range': '0,104857600' } with open(file_name, 'rb') as data: print(requests.put(upload_url, headers=headers, data=data))

使用Python中的API创建Google Cloud功能

1 个答案: