Using lambdas with YAML data in mustache - ruby

I want to use mustache command line with lambdas. The official documentation, uses JSON-like hash. I read this official mustache specs about lambdas. So I try:
Template:
---
name: "Willy"
wrapped: !code "proc {|text| return '<b>' + render(text) + '<b>'}"
---
Hash:
---
name: "Willy"
wrapped: !code "proc {|text| return '<b>' + render(text) + '<b>'}"
---
Expected output after mustache hash.yaml template.mustache:
<b>Willy is awesome.</b>
but I get
Willy is awesome.
What's wrong?

Related

Getting error in accessing Jmeter variables (variable_MarchNr) in yaml in beanshell script

I am trying to bulk edit one entity called issues, I call GetIssues API and via json extractor, get all issueId's in variable "issueIds"
json extractor to extract issueIds
Now I want to pass these Ids in other api bulk edit issues, If I directly use these array in next API, I get below error:
{"details":"Unexpected token $ in JSON at position 19","metadata":{}}
So I used to below code in Beanshell Post processor:
var mylist;
props.put("mylist", new ArrayList());
log.info("Detected " + vars.get("issueIds_matchNr") + " issueIds");
for (int i=1; i<= Integer.parseInt(vars.get("issueIds_matchNr")); i++) {
log.info("IDs # " + i + ": " + vars.get("issueIds_" + i));
props.get("mylist").add('"' + vars.get("issueIds_" + i) + '"' );
}
log.info(props.get("mylist").toString());
var issueIdList;
vars.put("issueIdList", props.get("mylist").toString());
log.info(vars.get("issueIdList"));
In my next api call if I pass issueIdList variable, then this works fine in jmeter.
sample variable values in debug sampler are like:
issueIdList=["555bcfc2", "33974d2c", "e58db1d6"]
issueIds_1=555bcfc2
issueIds_2=33974d2c
issueIds_3=e58db1d6
issueIds_matchNr=3
Problem I am facing if I convert my jmx2yaml and tried to run this file with
bzt issues.yml
then while executing above shell script, these issueIds_matchNr, issueIds_3 are not detected, I get below error;
2022-05-29 08:26:10,785 INFO o.a.j.e.J.JSR223PostProcessor: Detected null issueIds
2022-05-29 08:26:10,795 ERROR o.a.j.e.JSR223PostProcessor: Problem in JSR223 script, JSR223PostProcessor
javax.script.ScriptException: Sourced file: eval stream : Method Invocation Integer.parseInt : at Line: 4 : in file: eval stream : Integer .parseInt ( vars .get ( "issueIds_matchNr" ) )
Target exception: java.lang.NumberFormatException: null
in eval stream at line number 4
at bsh.engine.BshScriptEngine.evalSource(BshScriptEngine.java:87) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19]
My Yaml script is:
- extract-jsonpath:
issueIds:
default: NotFound
jsonpath: $..id
follow-redirects: true
jsr223:
- compile-cache: true
execute: after
language: beanshell
parameters: issueIds
script-file: script.bsh
label: Get Issue Id's
method: GET
url: https://${BASE_URL1}/${PROJECT_ID}/issues?limit=5&sortBy=-displayId&filter%5Bvalid%5D=true
You're missing one important bit: setting the Match Nr in your Taurus YAML
The correct definition of the JSON Extractor would be something like:
extract-jsonpath:
issueIds:
jsonpath: $..id
match-no: -1 #this is what you need to add
Also be informed that starting from JMeter 3.1 it's recommended to use Groovy as the scripting language so consider migrating, it will be as simple as removing the first line from your script.bsh

What is `<<` and `&` in yaml mean?

When I review the cryptogen(a fabric command) config file . I saw there symbol.
Profiles:
SampleInsecureSolo:
Orderer:
<<: *OrdererDefaults ## what is the `<<`
Organizations:
- *ExampleCom ## what is the `*`
Consortiums:
SampleConsortium:
Organizations:
- *Org1ExampleCom
- *Org2ExampleCom
Above there a two symbol << and *.
Application: &ApplicationDefaults # what is the `&` mean
Organizations:
As you can see there is another symbol &.
I don't know what are there mean. I didn't get any information even by reviewing the source code (fabric/common/configtx/tool/configtxgen/main.go)
Well, those are elements of the YAML file format, which is used here to provide a configuration file for configtxgen. The "&" sign mean anchor and "*" reference to the anchor, this is basically used to avoid duplication, for example:
person: &person
name: "John Doe"
employee: &employee
<< : *person
salary : 5000
will reuse fields of person and has similar meaning as:
employee: &employee
name : "John Doe"
salary : 5000
another example is simply reusing value:
key1: &key some very common value
key2: *key
equivalent to:
key1: some very common value
key2: some very common value
Since abric/common/configtx/tool/configtxgen/main.go uses of the shelf YAML parser you won't find any reference to these symbols in configtxgen related code. I would suggest to read a bit more about YAML file format.
in yaml if data is like
user: &userId '123'
username: *userId
equivalent yml is
user: '123'
username: '123'
or
equivalent json will is
{
"user": "123",
"username": "123"
}
so it basically allows to reuse data, you can also try with array instead of single value like 123
try converting below yml to json using any yml to json online converter
users: &users
k1: v1
k2: v2
usernames: *users

YML syntax error

I want to have a multi-line bit of markdown java in a yam file. I tried many things but I guess I don't quite get the quoting rules of Yaml.
{
title: Museum,
body: |
"```java
code code code
java2",
answers: [
"`museum`",
"`museum.getFloor(3)`",
"`museum.getFloor(3).getExhibit(5)`",
"`museum.getFloor(3).getExhibit(5).getCurator()`",
"`museum.getFloor(3).getExhibit(5).getCurator().name`",
"`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
]
}
Produces:
/Users/pitosalas/.rbenv/versions/2.3.1/lib/ruby/2.3.0/psych.rb:377:in `parse': (generator/test.yml): found character that cannot start any token while scanning for the next token at line 3 column 9 (Psych::SyntaxError)
YAML has two styles: the JSON like flow style and the much better human readable block style.
Roughly speaking you can have nested structures each style nested within itself and can have flow style nested within block style, but block style nested within flow style is not allowed.
Your to level { and } are flow style but you try to introduce, with |, a literal block style scalar within that flow style. Replace the flow style with block style upwards from that scalar:
title: Museum
body: |
"```java
code code code
java2"
answers: [
"`museum`",
"`museum.getFloor(3)`",
"`museum.getFloor(3).getExhibit(5)`",
"`museum.getFloor(3).getExhibit(5).getCurator()`",
"`museum.getFloor(3).getExhibit(5).getCurator().name`",
"`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
]
and your YAML is fine. Note that the double quotes "around" the value for the key body are not going to be stripped when loading, maybe that is not what you intended.
You should IMO not leave out the trailing , after the last value in the (flow style) sequence that is the value for answers. This will certainly lead to errors when you extend the list and forget to put in the trailing comma on the line above.
I would personally go for block style all the way:
title: Museum
body: |
"```java
code code code
java2"
answers:
- "`museum`"
- "`museum.getFloor(3)`"
- "`museum.getFloor(3).getExhibit(5)`"
- "`museum.getFloor(3).getExhibit(5).getCurator()`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
When dealing with YAML file generation that is convoluted or complex, or when it's not working as I expect, I revert to letting Ruby show me the way:
require 'yaml'
body = <<EOT
"```java
code code code
java2
"
EOT
answers = %w(
`museum`
`museum.getFloor(3)`
`museum.getFloor(3).getExhibit(5)`
`museum.getFloor(3).getExhibit(5).getCurator()`
`museum.getFloor(3).getExhibit(5).getCurator().name`
`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`
)
obj = {
"title" => "Museum",
"body" => body,
"answers" => answers
}
puts obj.to_yaml
Which, in this case, outputs:
---
title: Museum
body: |
"```java
code code code
java2
"
answers:
- "`museum`"
- "`museum.getFloor(3)`"
- "`museum.getFloor(3).getExhibit(5)`"
- "`museum.getFloor(3).getExhibit(5).getCurator()`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
If you then pass that YAML back into the parser, you should get the original data structure back:
YAML.load(obj.to_yaml)
# => {"title"=>"Museum",
# "body"=>"\"```java\n" +
# "code code code\n" +
# "java2\n" +
# "\"\n",
# "answers"=>
# ["`museum`",
# "`museum.getFloor(3)`",
# "`museum.getFloor(3).getExhibit(5)`",
# "`museum.getFloor(3).getExhibit(5).getCurator()`",
# "`museum.getFloor(3).getExhibit(5).getCurator().name`",
# "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"]}

Got NoMethodError while parsing yaml

I have a YAML file like that:
---
name: dummy
version: 0.2.0
title: dummy
summary: dummy
Now I tried to get the version number:
config = YAML.load_file('Index.yml')
oldversion = config[0]['version']
Why do it get the following error:
NoMethodError: undefined method `[]' for nil:NilClass
Try with this:
config = YAML.load_file('Index.yml')
oldversion = config['version']
With config[0] you are indexing a sequence/array, and at the top level of your yaml file you have a mapping, not a sequence, so leave that out: oldversion = config['version'] or change your YAML file to:
---
- name: dummy
version: 0.2.0
title: dummy
summary: dummy
if you eventually want a list of such objects (with name, version, etc.) in your configuration.

How to extract data from a get request with Ruby Grape

I'm experimenting with grape and Ruby by trying to make a Yo API callback function.
I can get simple examples up and running like this . . .
resource :loc do
get ':loc' do
params.to_yaml
end
end
How would I go about extracting username and x and y coordinates into separate ruby variable given a callback with the following format?
http://yourcallbackurl.com/yourendpoint?username=THEYOER&location=42.360091;-71.094159
When the location data is screwed up . . .
--- !ruby/hash:Hashie::Mash
username: sfsdfsdf
location: '42.360091'
"-71.094159":
route_info: !ruby/object:Grape::Route
options:
:prefix:
:version: v1
:namespace: "/loc"
:method: GET
:path: "/:version/loc/:loc(.:format)"
:params:
loc: ''
:compiled: !ruby/regexp /\A\/(?<version>v1)\/loc\/(?<loc>[^\/.?]+)(?:\.(?<format>[^\/.?]+))?\Z/
version: v1
loc: toto
format: txt
This is how Rack::Utils works. Default params separators are "&" and ";" (its totally legal according to HTTP standard). So you have to parse query string by yourself here.
location = Rack::Utils.parse_nested_query(env['QUERY_STRING'], '&')['location']
coordinates = location.split(';')
UPD: typo with hash key fixed.

Resources