loopback/docs/rest.md

8.8 KiB

#REST API

##create

Create a new instance of the model and persist it into the data source

Definition

POST /locations

Arguments

  • data The model instance data

**Example **

Request:

curl -X POST -H "Content-Type:application/json" \
-d '{"name": "L1", "street": "107 S B St", "city": "San Mateo", "zipcode": "94401"}' \
http://localhost:3000/locations

Response:

{
  "id": "96",
  "street": "107 S B St",
  "city": "San Mateo",
  "zipcode": 94401,
  "name": "L1",
  "geo": {
    "lat": 37.5670042,
    "lng": -122.3240212
  }
}

** Errors**

None

##upsert

Update an existing model instance or insert a new one into the data source

Definition

PUT /locations

Arguments

  • data The model instance data

Examples

Request - insert:

curl -X PUT -H "Content-Type:application/json" \
-d '{"name": "L1", "street": "107 S B St", "city": "San Mateo", "zipcode": "94401"}' \
http://localhost:3000/locations

Response:

{
  "id": "98",
  "street": "107 S B St",
  "city": "San Mateo",
  "zipcode": 94401,
  "name": "L1",
  "geo": {
    "lat": 37.5670042,
    "lng": -122.3240212
  }
}

Request - update:

curl -X PUT -H "Content-Type:applicatin/json" \
-d '{"id": "98", "name": "L4", "street": "107 S B St", "city": "San Mateo", \
"zipcode": "94401"}' http://localhost:3000/locations

Response:

{
  "id": "98",
  "street": "107 S B St",
  "city": "San Mateo",
  "zipcode": 94401,
  "name": "L4"
}

** Errors**

None

##exists

Check whether a model instance exists by ID in the data source.

Definition

GET /locations/exists

Arguments

  • id The model id

**Example **

Request:

curl http://localhost:3000/locations/88/exists

Response:

{
    "exists": true
}

** Errors**

None

##findById

Find a model instance by ID from the data source.

Definition

GET /locations/{id}

Arguments

  • id The model id

**Example **

Request:

curl http://localhost:3000/locations/88

Response:

{
    "id": "88",
    "street": "390 Lang Road",
    "city": "Burlingame",
    "zipcode": 94010,
    "name": "Bay Area Firearms",
    "geo": {
        "lat": 37.5874391,
        "lng": -122.3381437
    }
}

** Errors**

None

##find

Find all instances of the model matched by filter from the data source.

Definition

GET /locations

Arguments

  • filter The filter that defines where, order, fields, skip, and limit
  • where Object { key: val, key2: {gt: 'val2'}} The search criteria

    • Format: {key: val} or {key: {op: val}}
    • Operations:
      • gt: >
      • gte: >=
      • lt: <
      • lte: <=
      • between
      • inq: IN
      • nin: NOT IN
      • neq: !=
      • like: LIKE
      • nlike: NOT LIKE
  • include String, Object or Array Allows you to load relations of several objects and optimize numbers of requests.

    • Format:
      • 'posts': Load posts
      • ['posts', 'passports']: Load posts and passports
      • {'owner': 'posts'}: Load owner and owner's posts
      • {'owner': ['posts', 'passports']}: Load owner, owner's posts, and owner's passports
      • {'owner': [{posts: 'images'}, 'passports']}: Load owner, owner's posts, owner's posts' images, and owner's passports
  • order String The sorting order

    • Format: 'key1 ASC, key2 DESC'
  • limit Number The maximum number of instances to be returned

  • skip Number Skip the number of instances

  • offset Number Alias for skip

  • fields Object|Array|String The included/excluded fields

  • ['foo'] or 'foo' - include only the foo property

  • ['foo', 'bar'] - include the foo and bar properties

  • {foo: true} - include only foo

  • {bat: false} - include all properties, exclude bat

For example,

  • '/weapons': Weapons

  • '/weapons?filter[limit]=2&filter[offset]=5': Paginated Weapons

  • '/weapons?filter[where][name]=M1911': Weapons with name M1911

  • '/weapons?filter[where][audibleRange][lt]=10': Weapons with audioRange < 10

  • '/weapons?filter[fields][name]=1&filter[fields][effectiveRange]=1': Only name and effective ranges

  • '/weapons?filter[where][effectiveRange][gt]=900&filter[limit]=3': The top 3 weapons with a range over 900 meters

  • '/weapons?filter[order]=audibleRange%20DESC&filter[limit]=3': The loudest 3 weapons

  • '/locations': Locations

  • '/locations?filter[where][geo][near]=153.536,-28.1&filter[limit]=3': The 3 closest locations to a given geo point

**Example **

Request:

Find without filter:

curl http://localhost:3000/locations

Find with a filter:

curl http://localhost:3000/locations?filter%5Blimit%5D=2

Note: For curl, [ needs to be encoded as %5B, and ] as %5D.

Response:

[
  {
    "id": "87",
    "street": "7153 East Thomas Road",
    "city": "Scottsdale",
    "zipcode": 85251,
    "name": "Phoenix Equipment Rentals",
    "geo": {
      "lat": 33.48034450000001,
      "lng": -111.9271738
    }
  },
  {
    "id": "88",
    "street": "390 Lang Road",
    "city": "Burlingame",
    "zipcode": 94010,
    "name": "Bay Area Firearms",
    "geo": {
      "lat": 37.5874391,
      "lng": -122.3381437
    }
  }
]

** Errors**

None

##findOne

Find first instance of the model matched by filter from the data source.

Definition

GET /locations/findOne

Arguments

  • filter The filter that defines where, order, fields, skip, and limit. It's same as find's filter argument. Please see find for more details.

**Example **

Request:

curl http://localhost:3000/locations/findOne?filter%5Bwhere%5D%5Bcity%5D=Scottsdale

Response:

{
  "id": "87",
  "street": "7153 East Thomas Road",
  "city": "Scottsdale",
  "zipcode": 85251,
  "name": "Phoenix Equipment Rentals",
  "geo": {
    "lat": 33.48034450000001,
    "lng": -111.9271738
  }
}

** Errors**

None

##deleteById

Delete a model instance by id from the data source

Definition

DELETE /locations/{id}

Arguments

  • id The model id

**Example **

Request:

curl -X DELETE http://localhost:3000/locations/88

Response:

Example TBD.

** Errors**

None

##count

Count instances of the model matched by where from the data source

Definition

GET /locations/count

Arguments

  • where The criteria to match model instances

**Example **

Request - count without "where" filter

curl http://localhost:3000/locations/count

Request - count with a "where" filter

curl http://localhost:3000/locations/count?where%5bcity%5d=Burlingame

Response:

{
    count: 6
}

** Errors**

None

##nearby

Find nearby locations around the geo point.

Definition

GET /locations/nearby

Arguments

  • here geo location object with lat and lng properties
  • page number of pages (page size=10)
  • max max distance in miles

**Example **

Request:

curl http://localhost:3000/locations/nearby?here%5Blat%5D=37.587409&here%5Blng%5D=-122.338225

Response:

[
  {
    "id": "88",
    "street": "390 Lang Road",
    "city": "Burlingame",
    "zipcode": 94010,
    "name": "Bay Area Firearms",
    "geo": {
      "lat": 37.5874391,
      "lng": -122.3381437
    }
  },
  {
    "id": "89",
    "street": "1850 El Camino Real",
    "city": "Menlo Park",
    "zipcode": 94027,
    "name": "Military Weaponry",
    "geo": {
      "lat": 37.459525,
      "lng": -122.194253
    }
  }
]

** Errors**

None

##updateAttributes

Update attributes for a model instance and persist it into the data source

Definition

PUT /locations/{id}

Arguments

  • data An object containing property name/value pairs
  • id The model id

**Example **

Request:

curl -X PUT -H "Content-Type:application/json" -d '{"name": "L2"}' \
http://localhost:3000/locations/88

Response:

{
  "id": "88",
  "street": "390 Lang Road",
  "city": "Burlingame",
  "zipcode": 94010,
  "name": "L2",
  "geo": {
    "lat": 37.5874391,
    "lng": -122.3381437
  },
  "state": "CA"
}

** Errors**

  • 404 No instance found for the given id

##getAssociatedModel

Follow the relations from one model (location) to another one (inventory) to get instances of the associated model.

Definition

GET /locations/{id}/inventory

Arguments

  • id The id for the location model

**Example **

Request:

curl http://localhost:3000/locations/88/inventory

Response:

[
  {
    "productId": "2",
    "locationId": "88",
    "available": 10,
    "total": 10
  },
  {
    "productId": "3",
    "locationId": "88",
    "available": 1,
    "total": 1
  }
]

** Errors**

None