Joi: I have one question can Joi validate like this

[manjeettahkur]

currentLocation: Joi.object().keys({
                        type: Joi.string().required().valid(["Point"]),
                        coordinates: [{
                            longitude: Joi.number().precision(8),
                            latitude: Joi.number().precision(8)
                        }]

if i am wrong can you please suggest me the write way to write valid format

[Marsup]

I don't even know what you're trying to do, what you already tried, why it failed.

[manjeettahkur]

Hey @Marsup I just want to get the input from user for this schema

currentLocation: {
        'type': {type: String, enum: "Point", default: "Point"},
        coordinates: {type: [Number], default: [0, 0]}
    },

i just want to this in database
Please suggest me any solution

[Marsup]

You only answered 1 question out of 3.

[manjeettahkur]

@Marsup
I am not getting you

Ooh

1. what you're trying to do
   I am trying to save user location coordinates in database.
2. what you already tried
   I make currentLocation as array object

currentLocation: Joi.object().keys({
                        type: Joi.string().required().valid(["Point"]),
                        coordinates: [{
                            longitude: Joi.number().precision(8),
                            latitude: Joi.number().precision(8)
                        }]

3.why it failed

i really no idea why it failed but Joi prompt error
currentLocation must be an object"

[Marsup]

What have you already tried and why did it fail your expectations ?

[manjeettahkur]

I am also trying like this

 currentLocation: Joi.object().keys({
                        type: Joi.string().required().valid(["Point"]),
                        coordinates: {
                            longitude: Joi.number().precision(8),
                            latitude: Joi.number().precision(8)
                        }

                    }).description('Please use this format [ longitude, latitude]'),

[Marsup]

I still don't see your problem.

[manjeettahkur]

@Marsup Okay No problem so please can you tell me that this is write way of Joi Validation
I think it help you what's going on. Sorry for you taking time

When is put the fields values in swagger
like this

{type:Point,coordinates:{longitude:30,latitude:30}}

[Marsup]

I don't know swagger enough but it seems wrong, please use a better tool to make your tests.
Also joi has no ties with http, please report issues with plain javascript objects.

[manjeettahkur]

can you suggest me better tool for API's documentation tool

[Marsup]

For documentation or making queries ? To do queries, basically anything else, curl, browser extensions, ...

[manjeettahkur]

Thank you @Marsup

[ArkeologeN]

@Marsup he's trying to store location coordinates in database. Fine! But the problem: How shall he write a Joi validation to validate the coordinates? The standard format is: [lat, lng] array.

[Marsup]

His problem was probably different as it failed on the object, but I never had enough clues to give an answer.

For yours, well, if I translate the constraints of those right, it's :

Joi.array().ordered([
  Joi.number().min(0).max(90).required(),
  Joi.number().min(-180).max(180).required()
])

This is the basics, you might want to add other constraints on top of it.

[ArkeologeN]

Yeah, you're right! This is what was expected :)

I had it this way btw:

Joi.array().items(Joi.number()).min(2).max(2)

But I guess, your solution is more elegant! Sound's good @Marsup :+1:

Joi.array().ordered([
  Joi.number().min(0).max(90).required(),
  Joi.number().min(-180).max(180).required()
])

[matthewberryman]

Unless you want to deliberately exclude half the planet you probably want:

Joi.array().ordered([
  Joi.number().min(-90).max(90).required(),
  Joi.number().min(-180).max(180).required()
])

(i.e. allow Southern Hemisphere latitudes down to -90).
Other than that this is a pretty elegant way of doing it @Marsup

[CriptoGirl]

I am trying to validate an amount using the following:
Joi.number().min(0).precision(2)
but it still allows numbers like 23.566 and stores them in mongo db.

[aneesahammed]

Faced the same issue, May be helpful for somebody else.

Below is an example GeoJSON point representing the approximate location of San Francisco. Note that longitude comes first in a GeoJSON coordinate array, not latitude.

{
  "type" : "Point",
  "coordinates" : [
    -122.5,
    37.7
  ]
}

const pointSchema = new mongoose.Schema({
  type: {
    type: String,
    enum: ["Point"],
    required: true
  },
  coordinates: {
    type: [Number],
    required: true
  }
});

//mongo schema
location: {
    type: pointSchema,
    required: true
  },

In this case we can have Joi schema validation like below.

location: Joi.object()
      .keys({
        type: Joi.string()
          .required()
          .valid(["Point"]),
        coordinates: Joi.array().ordered([
          Joi.number()
            .min(-180)
            .max(180)
            .required(),
          Joi.number()
            .min(-90)
            .max(90)
            .required()
        ])
      })
      .description("Please use this format [ longitude, latitude]")

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