Issue Forms Parser
Convert issue form responses to JSON
About
This package can be used to parse GitHub issues into machine-readable JSON for
processing. In particular, it is designed to work with
issue forms
to perform basic transformations on the issue body, resulting in a consistent
JSON output.
Issues submitted using issue forms use a structured Markdown format. So long
as the issue body is not heavily modified by the user, we can reliably parse
the issue body into a JSON object.
Installation
npm i @github/issue-parser
Example
Here is a simple example of how to use this package in your project.
import { parseIssue } from '@github/issue-parser'
const issue = parseIssue('<issue body>', '<template>')
Assuming the issue and template look like these examples:
The resulting issue
object will look like the following:
{
name: 'this-thing',
nickname: 'thing',
color: ['blue'],
shape: ['square'],
sounds: ['re', 'mi'],
topics: [],
description: "This is a description.\n\nIt has multiple lines.\n\nIt's pretty cool!",
notes: '- Note\n- Another note\n- Lots of notes',
code: 'const thing = new Thing()\nthing.doThing()',
'code-string': 'thing.toString()',
'is-thing': {
selected: ['Yes'],
unselected: ['No']
},
'is-thing-useful': {
selected: ['Sometimes'],
unselected: ['Yes', 'No']
},
'read-team': 'IssueOps-Demo-Readers',
'write-team': 'IssueOps-Demo-Writers'
}
Usage
parseIssue
This is the main function of the package. It takes two arguments:
issue: string
- The body of the issue to be parsed
template: string
- (Optional) The issue form template used to create the
issue
options?: { slugify?: boolean }
- (Optional) Additional parsing options to
use when processing the issue body
If the template
value is provided, the package will attempt to transform the
issue response values into different types based on the type
property of the
specific field in the template. If the template
value is omitted, all parsed
values will be returned as strings. For information on the transformations that
are applied, see the Transformations section.
Parsing Options
slugify: boolean
- If set to true
, any parsed keys that are not found in
the issue forms template (if provided) will be converted to
slugs using the
slugify package. Otherwise, the
original header value will be used as the object key.
parseTemplate(template?: string)
Parses an issue form template and returns an object. This can be used to match
form responses in the issue body with the fields, so that you can perform
additional validation.
When parsing an issue and the associated form template, this package will
attempt to match field IDs with response values. If a match is found, the field
ID will be used in the parsed object keys (instead of the header value from the
markdown response). If no match is found, the header text is used as the object
key.
For example, if you have the following issue form template:
name: Example Request
description: Submit an example request
title: '[Request] Example'
body:
- type: input
id: name
attributes:
label: The Name of the Thing
description: The name of the thing you want to create.
placeholder: this-is-the-thing
validations:
required: true
And the following issue body:
### The Name of the Thing
this-thing
### The Nickname of the Thing
thing
The resulting parsed issue would be:
{
// Uses the ID value from the issue form template as the key
"name": "this-thing",
// Uses the original header value from the issue body
"The Nickname of the Thing": "thing"
}
Transformations
The following transformations will take place for responses, depending on the
input type. The type is inferred from the issue form template. For information
on each specific type, see
Syntax for GitHub's form schema.
Single Line
Type: input
Before:
This is a response
After (no change):
This is a response
Multiline
Type: textarea
[!NOTE]
Empty lines are preserved in multiline responses.
Before:
First line :D
Third line!
After:
First line :D\n\nThird line!
Dropdown Selections
Type: dropdown
Before:
red, blue, green
After:
["red", "blue", "green"]
Checkboxes
Type: checkboxes
Before:
- [x] Pick me!
- [ ] Don't pick me D:
After:
{
"selected": ["Pick me!"],
"unselected": ["Don't pick me D:"]
}
Omitting Inputs
In the following situations, an input will be omitted from the output JSON:
Scenario | Example |
---|
Invalid Heading | ## This is invalid |
Empty Heading | ### |
| This is a value |
No Value | ### This is a heading |
| |
| ### This is another |
| This is a value |
Normally, if a form is submitted with empty field(s), they will be included in
the issue body as one of the following, depending on the input type in the form
template.
Type | No Response |
---|
dropdown | None |
input | _No response_ |
textarea | _No response_ |
### Dropdown Field
None
### Input or Textarea Field
_No response_
### Checkboxes Field
- [ ] Item A
- [ ] Item B
These will be converted to one of the following, based on the type of input
specified in the issue form template:
Type | Output |
---|
checkboxes | { "selected": [], "unselected": []} |
dropdown | [] |
input | undefined |
textarea | undefined |