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Informations about the package jsonvalidator
Use using composer:
Beware that this is currently more a proof of concept, as it does more or less basic JSON validation.
The why:
When working with JSON API's it's a lot of hassle validating the response. Are you going to do it something like this?
And this is only a really, really simple example. Usually it is loop in loop in loop.
JSON Schema
Then there is JSON Schema, which is great, but:
- It is in draft;
- The schema's can become quite large;
- All fields have to be defined, which does make sense, except:
- When you only need 1% of the response the schema becomes quite unclear;
- When the response changes (a field is added for example), the schema as a whole does not match anymore.
JSON Validator
So I started working on this little JSON validator. Lets take this Yahoo weather as a example request: https://gist.github.com/vrijdag/54d17f2158e538c0ad723d7e544523ee
In this response we can find all sorts of data, let's say I need the following:
- The language of the response;
- The current wind direction;
- The max high temperature of today's forecast.
Based on the response I have to create this 'schema'. Only the fields in this schema are required to be in the response, all other data is left alone.
That's quite a clear file:
- The
queryproperty has to be an object, containing; - A
languageproperty which needs to be a string; - A
resultsproperty, containing an object; - Which contains a channel property
... and so on.
A special one is the forecast property. Based on the schema, this should contain an array of which each entry should be an object containing a high property which should be a number (that is a numeric string, not an int or float).
Tying this together
So tying to this together we have a JSON response from the API and a schema, it would be something like this to validate:
