Let's say we have the following JSON response:
{
"abcd1234": {
"foo": "bar"
}
}
How would "bar" be accessed in a response parsed body value? In the response, "abcd1234" could be anything. But we want the first key in the object (in JavaScript this would be Object.keys(res)[0]).
Paw makes it easy to parse JSON (and XML) responses and access subfields via their key-path.
This documentation article may help: https://paw.cloud/docs/advanced/reuse-values-from-previous-responses
Insert the Response Parsed Body dynamic value
Set the input request and extract the needed value
In your example, the key path will be:
abcd1234.foo
Though, it seems like you need to access the path without knowing the key before hand. If so, one way would be to use a JavaScript snippet to be able to achieve the behavior you want.
On any field, you may right-click and pick Extensions > JS Script.
Here's a snippet that may fit your needs:
function evaluate(context){
var request = context.getCurrentRequest();
var exchange = request.getLastExchange();
var body = JSON.parse(exchange.responseBody);
var key = Object.keys(body)[0];
var value = body[key].foo;
return value;
};
Related
In my cloud function, I take the JSON body and particular elements of it.
const type = request.body.type;
But what if type was optional. And the user didn't have to put it. Is there a way of doing the above without it erroring out.
Because in the instant above, if the user left "type" out of their object, then it would cause an error.
If I correctly understand your question you want to check if there is a type property in the request's body.
The following should do the trick:
if (request.body.type) {
//There is a type, act accordingly
} else {
//No type
}
In my user's schema, I have a TokAuth Array with token sub-objects (like multiple mails addresses).
So in a method, when I search the tokens in the current user :
var id = Meteor.userId();
var usercurrent = Meteor.users.findOne({_id: id}, {fields: {"TokAuth": 1}});
var userToken = usercurrent.TokAuth.token;
I got in console.log(userToken)
[ 'fyAyXkXYrQdAlNpjuQfJ8RLU2TpfVGLnptlBs-m1h7xk',
I20170224-20:36:23.202(1)? 'YTwtUbhNTgiEfzFbJq7mESnOoOHeLYxWlqEeJJIG_GiV',
I20170224-20:36:23.206(1)? 'ViA4ydDITJtHDi2c_sArkNtpRYTjFqGL1ju2v00_-rFJ',
I20170224-20:36:23.206(1)? '51ImZcxRADLJr-FPCUL7EFGnTZYjHSZk3XxdqtBV2_fd',
I20170224-20:36:23.207(1)? 'S5aEvqjJ5zTUJqLFCPY1aZ1ZhsQppZTJtYKULM9aS2B3',
I20170224-20:36:23.207(1)? 'mhBs3oxHf2SxZfu2vCZhtiyPfg25fKMY8bKMZD8fx6IG',
I20170224-20:36:23.207(1)? '-rv0FiP-lxoqe8INyCJASV6rZpbgy3euEqB9sO9HsZSV',
I20170224-20:36:23.207(1)? 'zacr6_VBjHTsArov1LmQyZFLwI40fx4J7sygpLosTrli' ]
Beside, I've got a var who is equal to the last token in the userToken sub-object (that's of course expected : not to be the last one, but to be in the sub-object).
console.log (editAuth);
zacr6_VBjHTsArov1LmQyZFLwI40fx4J7sygpLosTrli
So how can I parse userToken to find a match with editAuth? If userToken was just a String, it will be simple but here...
Thanks
Is there a reason you are storing all the tokens as an array as opposed to just updating a single string each time?
That aside, you can check if an array contains a value by using the handy underscore function _.contains
Example:
_.contains( userToken, editAuth ); //returns true or false
In this case, you are simply trying to search for a string within an array of strings. #Sean already provided one solution.
If you are using the meteor ecmascript package then you can just simply use the native Array.includes method.
userToken.includes(editAuth);
On a side note, after using ECMAScript 2015+ for some time now, I find that I can use the native API for almost everything that I used to use underscore or lodash for. Check it out!
I am quite new to lua. I trying to convert a string of the form
{"result": "success", "data":{"shouldLoad":"true"}"}
into lua map. So that I can access it like json. e.g. someMap[data][shouldLoad] => true
I dont have any json bindings in lua. I also tried loadstring to convert string of the form {"result" = "success", "data"={"shouldLoad"="true"}"}, which is not working.
Following, is the code snippet, where I am calling getLocation hook, which in turn returns json stringified map. Now I want to access some keys from this response body and take some decisions accordingly.
access_by_lua "
local res = ngx.location.capture('/getLocation')
//res.body = {"result"= "success", "data" = {"shouldLoad" = "true"}}
local resData = loadstring('return '..res.body)()
local shoulLoad = resData['data']['shouldLoad']
"
When I try to load shouldLoad value, nginx error log reports error saying trying to index nil value.
How do I access key value with either of the string formats. Please help.
The best answer is to consider a pre-existing JSON module, as suggested by Alexey Ten. Here's the list of JSON modules from Alexey.
I also wrote a short pure-Lua json module that you are free to use however you like. It's public domain, so you can use it, modify it, sell it, and don't need to provide any credit for it. To use that module you would write code like this:
local json = require 'json' -- At the top of your script.
local jsonStr = '{"result": "success", "data":{"shouldLoad":"true"}"}'
local myTable = json.parse(jsonStr)
-- Now you can access your table in the usual ways:
if myTable.result == 'success' then
print('shouldLoad =', myTable.data.shouldLoad)
end
with meteor's IronRouter, I'm trying to use the this.params object elsewhere, but confused as to what it is. It seems to be a zero length array, that is actually an object with named methods after the path components.
# coffee
#route 'magnets',
path: '/magnets/lesson/:lessonCname'
data: ->
if #ready()
debugger;
console.log("route.params", #params)
with this code, in the debug console I will get:
this.params
[]
this.params.lessonCname
"despite-magnets-01"
typeof(this.params)
"object"
this.params.length
0
this.ready()
but in passing the params object to a server method, the methods (ie "lessonCname") disappear.
If my understanding is correct, then the near-term question is what is the best way to retrieve/convert these methods to {property:value} so they can be serialized and passed to server calls?
There are two easy ways of solving your problem, you can either set a global variable from within the data scope (but this is considered bad practice, at least IMO) or you can use the "data" function, which returns the data context for the current template:
data: ->
window._globalscopedata = #params.whatever #setting global variable
return someCollection.findOne #returns data context
_id: #params.whatever
when proccessing this route I will have the whatever param available in _globalscoredata and my document available in the template context.
Take a look at the source code for retrieving the parameters from a path. params is an array, but may have named properties. To iterate over everything, you can use the for in loop:
for(var x in myArray){
// Do something.
}
In this way, you can copy over everything to a new object (there may be a simpler way to create a copy).
The params property attached to a RouteController is an object with the following properties :
hash : the value of the URL hash.
query : an object consisting of key/value pairs representing the query string.
a list of URL fragments with their name and actual value.
Let's take an example, for this route definition :
// using iron:router#1.0.0-pre2 new route definition
Router.route("/posts/:slug");
And this URL typed in the browser address bar : /posts/first-post#comments?lang=en
We can use the console to find out precisely what params will actually contain :
> Router.current().params
Which will display this result :
Object {
hash: "comments",
slug: "first-post",
query: {
lang: "en"
}
}
Here slug is already a property of the params object whose value is "first-post", this is not a method.
If you want to extract from params these URL fragments as an object of key/value pairs, you can use underscore omit :
// getting rid of the hash and the query string
var parameters=_.omit(this.params,["hash","query"]);
I'm using Meteor with another CMS, and am creating a url with the variables I need to run Meteor (ex. http://site.com?a=flash&b=hash). How to I make those variables usable, and get Meteor to ignore it as a location? When I load the url like that, my app doesn't load correctly, presumably because it thinks I'm requesting a different location.
Using iron router, if there is a query string or hash fragment in the url, you can access those using the query and hash properties of the this.params object.
// given the url: "/post/5?q=s#hashFrag"
Router.route('/post/:_id', function () {
var id = this.params._id;
var query = this.params.query;
// query.q -> "s"
var hash = this.params.hash; // "hashFrag"
});
Use of the querystring in Meteor should have no effect unless you're using eg. Meteor Router to invoke different methods depending on the current URL.
If you want to parse the querystring, just parse it by hand with eg. (in coffeescript)
querystring: ->
qs = {}
for pair in window.location.search.replace("?", "").split "&"
[k, v] = pair.split("=")
qs[k] = v
qs
Which will return an object like:
{ "a": "flash", "b": "hash" }