mullet | Mullet Stack : Facebook in the front | Frontend Framework library
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kandi X-RAY | mullet Summary
Facebook in the front. Walmart in the back. All sitting on top of Node.js.
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QUESTION
EDIT: Solved: CORS; Required OPTIONS response.
I have an angular application I plan to host in AWS Amplify. It calls into Lambda functions for its REST API. I have a test application that is mostly successful, but it cannot do this one thing: POST JSON data to the hosted URI.
In the browser, I have an Angular client that has one button and when clicked, calls into HttpClient.post
or HttpClient.request
. I have multiple backend servers I've tested with: (1) NestJs/Express, (2) sam local start-api
and (3) AWS hosted. The local sam
server and the hosted environment are in sync and use the same template.yaml
. All three servers accept Content-Type
of application/json
and application/x-www-form-urlencoded
.
Every combination of Content-Type
, server instance and HttpClient method (post
or request(“POST”,...)
) works except Json in the hosted lambda function. It appears to be rejected immediately.
The call never makes it to the Cloudwatch logs, which I'm guessing means it's somehow malformed and filtered by I don't know what. I'm quite new to AWS and unfamiliar with its particularities, so I'm unsure what logging I can turn on in the hosted environment to capture this. It fails so quickly never reaching the logs let alone my code, I'm very curious what about it is a problem.
Curl with Json also works: curl -X POST -H "Content-Type:application/json" ...
.
In summary, when POST'ing either Json or Form styles with .post()
or .request()
methods to non-AWS and local AWS web server, everything is dandy. Form style POST to AWS hosted (via API Gateway) works, too. Command line hand crafted POST with Json also works with AWS hosted (via API Gateway).
Only POST to AWS hosted from Angular does not work.
ETA Here’s a code snippet:
...ANSWER
Answered 2021-May-08 at 20:56Sounds like CORS issue.
You need to not only enable CORS within the API Gateway but your Lambda API GAteway response MUST also include the access-control headers.
Your response should look something like this:
QUESTION
I have written following code to stream data from Tweepy API. And I am getting data inside stream object. But unable to get streamp["user"]["followers_count"] but don't know how to get it. I also tried jsonLines = lines.flatMap(lambda json_str:json.loads(json_str))
but no help.
ANSWER
Answered 2021-May-08 at 16:54You can map the json string to a tuple of the values that you want to extract:
QUESTION
I am writing a search menu that searches for and shows on the page all matching substrings in a string on pure js. I made the search on page, but I don't know how to display the results in the search drop-down menu with the number of results like on picture use only js. My code and picture below:
...ANSWER
Answered 2020-Oct-26 at 10:28Maybe like this:
QUESTION
Continuation of my question. There is a search block, a string is searched among the "p" blocks on the page, the number of blocks is displayed.
I cannot make it so that the blocks that contain the search string are reflected in the drop-down list as in the picture.
Question:
how to make a drop-down list with "p" blocks that contain the desired string in pure js.
An example in the picture, the available code below:
...ANSWER
Answered 2020-Oct-26 at 15:12Inside the p
loop, you can check if each p
content contains the inputed
text using String.prototype.match
and if no matches, update the style to hide the p
tag as follows.
QUESTION
1) For example, I have 3 columns like below
...ANSWER
Answered 2018-Dec-01 at 12:49Use -
QUESTION
ANSWER
Answered 2017-May-20 at 14:26fadeIn
and fadeOut
won't work because you're using slim version of jquery, which doesn't have that functions. You can put
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