my nodejs service always output this error : Cannot read property data of undefined, not only get data from other services ,but also query the db ,so please give me some suggestions,thanks;
If you look at the entire error that you quoted as "Cannot read property data of undefined" then you'll see that it includes the file name and line number. In that line you will see something like x.data and this error means that the x is undefined. If you add a console.log or other logging to that line and you'll try to print the x (or whatever name it is in your case) then you'll see that it is indeed undefined just before you get the error, contrary to what you described here.
Related
if i place the " isOptimizationV2Enabled.mockResolvedValue(false);" inside before each it works as expected, but i want to assign the different value for each test case.
I tried several methods but facing same error
I'm creating a site allowing me to create posts, as well as to comment on them.
I have a problem when I like or dislike a comment.
I get the following error:
TypeError: Cannot read property 'map' of undefined
I have already implemented the like/dislike feature for posts and have not encountered any problems.
I'm open to any proposal to move forward.
my github project : https://github.com/AlexisAndre34/mernswiftproject
thanks!
You are trying to map over something that's undefined
check your data exists first
data && data.length > 0 && data.map(...
I have following JSON that i am trying to parse.
{"id":1,"colour":"blue","count(colour)":1}
It is a result of what i have returned from my sqlite3 select staement. I am doing a count(colours), which is being returned as the key in the JSON.
Then when i attempt to reference the value using .count(colour), my node app fails giving me an error that colour is not defined. Note, that referencing .id works just fine.
Has anybody ran into this issue before or can provide any help?
If your JSON is in some variable, myjson, and you access it directly with myjson.count(colours), you get the error because it's trying to execute a function in your object.
It works as you expect if you access via string like this: myjson["count(colour)"].
This is my client Side code:
model.remove('agent',{'text':'online'});
I cant able to remove collection from model,Its shows following error in console
Error: remove must be performed under a collection and document id. Invalid path: agent
From the documentation, it looks like 'path' should be the collectionname.id. In this case, maybe I suppose it should be 'agent.id'.
This blog refers that the path should be in the format collection.documentId.document.
http://blog.derbyjs.com/2012/04/13/derby-v0-dot-3-0/
I am getting below error when I run the Orchestration and try to assign value to a promoted property by reading the value of another promoted property.
Error in Suspended Orchestration:
Inner exception: There is no value associated with the property BankProcesses.Schemas.Internal_ID' in the message.
Detail:
I have 2 XSD schemas, 1 for calling a stored procedure and reading its response and another to write it into a flat file. The internal ID returned in the response from SP needs to be passed to a node in another XSD schema to write to a flat file format.
I have promoted an element from the response schema and also promoted an element from the schema to write to flat file. I am assigning the value to promoted propeties as below:
strInternalId = msgCallHeaderSP_Response(BankProcesses.Schemas.Internal_ID);
msgCallSP(BankProcesses.Schemas.Header_Internal_ID) = strInternalId;
But when I run the orchestration I get the error as mentioned above. I have checked the reponse from stored procedure and the reponse XML does contain some value but I am unable to assign that value to another schema. Please advice
Thanks,
Mayur
You can use exists to check the existence of property.
if(BankProcesses.Schemas.Internal_ID exists msgCallHeaderSP_Response)
{
strInternalId = msgCallHeaderSP_Response(BankProcesses.Schemas.Internal_ID);
msgCallSP(BankProcesses.Schemas.Header_Internal_ID) = strInternalId;
}
One scenario that might cause this error is that there is no Header_Internal_ID element in the message you are trying to modify. Can you inspect the message before modification to ensure that there is an element whose value should be changed - drop the message out to a file location, maybe.
If this is the case, then just ensure that you create this element when you instantiate you r message for the first time - even if you initially set it to an empty element.
HTH
To check if the property exists, you can use this syntax:
BMWFS.LS.BizTalk.CFS.BankProcesses.Schemas.Internal_ID exists msgCallHeaderSP_Response
However, if the case is that the source field would always be there, you have to work backwards to find out why the Property is not appearing on the Context.
If it's coming from a Port, is the message passign through an XmlDisassembler Component? If it's coming from another Orchestration, are you actually setting the Property?
The easiest way to look at the Context is to route the Message, msgCallHeaderSP_Response, to a Stopped Send Port. You can then view the Context in BizTalk Administrator.