问题描述
我有多个nifi服务器，我希望能够通过脚本通过REST接口将模板POST到
I have multiple nifi servers that I would like to be able to POST templates to via the REST interface from a script
"/controller/templates"端点似乎是正确的REST端点，可支持将任意模板发布到我的Nifi安装中."snippetId"字段让我感到困惑，如何确定内容将包含模板的代码段的ID"?有没有人举过一个例子，说明我无需使用UI即可将模板"test.xml"上传到服务器上的情况?
The "/controller/templates" endpoint appears to be the proper REST endpoint to support POSTing an arbitrary template to my Nifi installation.The "snippetId" field is what is confusing me, how do I determine "The id of the snippet whose contents will comprise the template"? Does anyone have an example of how I can upload a template "test.xml" to my server without having to use the UI?
推荐答案
所提供的文档有些混乱，我制定的解决方案源自 https://github.com/aperepel/nifi-api-deploy
The provided documentation is somewhat confusing, and the solution I worked out was derived from the nifi api deploy groovy script at https://github.com/aperepel/nifi-api-deploy
最终，要直接发布模板，您可以在Python请求中使用以下内容
Ultimately, to POST a template directly, you can use the following in Python requests
requests.post("%s/nifi-api/controller/templates"%(url,), files={"template":open(filename, 'rb')})
其中filename是模板的文件名，而url是您的nifi实例的路径.我还没有直接解决问题，但这有望使人们也遇到类似的问题！
Where filename is the filename of your template and url is the path to your nifi instance. I haven't figured it out in curl directly but this should hopefully get folks with a similar question started!
请注意，您也不能上传与现有模板同名的模板.在尝试重新上传之前，请确保删除现有模板.使用untangle库解析模板的XML，以下脚本可以正常工作:
Note that you also can't upload a template with the same name as an existing template. Make sure to delete your existing template before attempting to re-upload. Using the untangle library to parse the XML of the template, the following script works just fine:
import untangle, sys, requests
def deploy_template(filename, url):
p = untangle.parse(filename)
new_template_name=p.template.name.cdata
r=requests.get("%s/nifi-api/controller/templates"%(url,), headers={"Accept":"application/json"})
for each in r.json()["templates"]:
if each["name"]==new_template_name:
requests.delete(each["uri"])
requests.post("%s/nifi-api/controller/templates"%(url,), files={"template":open(filename, 'rb')})
if __name__=="__main__":
deploy_template(sys.argv[1], sys.argv[2])
这篇关于通过REST发布NIFI模板?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！