tachybase_todo/docs/en-US/development/http-api/index.md
chenos 4412efc145
feat(client,sdk): improve api client (#425)
* feat(client,sdk): improve api client

* feat: add test cases

* docs: update doc

* fix(sdk): cannot destructure property 'authClass' of 'instance' as it is undefined
2022-05-27 00:00:59 +08:00

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# Overview
NocoBase HTTP API is designed based on Resource & Action, it is a superset of REST API. The operation is not limited to add, delete, change, and check, Resource Action can be extended arbitrarily in NocoBase.
## Resource
Resource has two expressions in NocoBase.
- `<collection>`
- `<collection>.<association>`
<Alert>
- collection is the set of all abstract data
- association is the association data for the collection
- resource includes both collection and collection.association
</Alert>
### Example
- `posts` Post
- `posts.user` Post user
- `posts.tags` Post tags
## Action
Representing resource operations as `:<action>`
- `<collection>:<action>`
- `<collection>.<association>:<action>`
Built-in global operations for collection or association
- `create`
- `get`
- `list`
- `update`
- `destroy`
- `move`
Built-in association operation for association only
- `set`
- `add`
- `remove`
- `toggle`
### Example
- `posts:create` Create posts
- `posts.user:get` View posts user
- `posts.tags:add` Attach post tags (associate existing tags with post)
## Request URL
```bash
<GET|POST> /api/<collection>:<action>
<GET|POST> /api/<collection>:<action>/<collectionIndex>
<GET|POST> /api/<collection>/<collectionIndex>/<association>:<action>
<GET|POST> /api/<collection>/<collectionIndex>/<association>:<action>/<associationIndex>
```
### Example
posts resource
```bash
POST /api/posts:create
GET /api/posts:list
GET /api/posts:get/1
POST /api/posts:update/1
POST /api/posts:destroy/1
```
posts.comments resource
```bash
POST /api/posts/1/comments:create
GET /api/posts/1/comments:list
GET /api/posts/1/comments:get/1
POST /api/posts/1/comments:update/1
POST /api/posts/1/comments:destroy/1
```
posts.tags resource
```bash
POST /api/posts/1/tags:create
GET /api/posts/1/tags:get
GET /api/posts/1/tags:list
POST /api/posts/1/tags:update
POST /api/posts/1/tags:destroy
POST /api/posts/1/tags:add
GET /api/posts/1/tags:remove
```
## Resource location
- collection resource, locates the data to be processed by `collectionIndex`, `collectionIndex` must be unique
- association resource, locates the data to be processed by `collectionIndex` and `associationIndex` jointly, `associationIndex` may not be unique, but `collectionIndex` and `associationIndex`'s association indexes must be unique
When viewing association resource details, the requested URL needs to provide both `<collectionIndex>` and `<associationIndex>`, `<collectionIndex>` is not redundant because `<associationIndex>` may not be unique.
For example, `tables.fields` indicates the fields of a data table
```bash
GET /api/tables/table1/fields/title
GET /api/tables/table2/fields/title
```
Both table1 and table2 have a title field. The title is unique in table1, but other tables may also have a title field
## Request parameters
Request parameters can be placed in the request's headers, parameters (query string), and body (GET requests do not have a body).
A few special request parameters
- `filter` Data filtering, used in query-related operations.
- `filterByTk` filter by tk field, used in operations that specify details of the data.
- `sort` Sorting, used in query-related operations.
- `fields` which data to output, for use in query-related operations.
- `appends` additional relationship fields for use in query-related operations.
- `except` which fields to exclude (no output), used in query-related operations.
- `whitelist` fields whitelist, used in data creation and update related operations.
- `blacklist` fields blacklist, used in data creation and update related operations.
### filter
Data filter
```bash
# simple
GET /api/posts?filter[status]=publish
# Recommend using the json string format, which requires encodeURIComponent encoding
GET /api/posts?filter={"status":"published"}
# filter operators
GET /api/posts?filter[status.$eq]=publish
GET /api/posts?filter={"status.$eq":"published"}
# $and
GET /api/posts?filter={"$and": [{"status.$eq":"published"}, {"title.$includes":"a"}]}
# $or
GET /api/posts?filter={"$or": [{"status.$eq":"pending"}, {"status.$eq":"draft"}]}
# association field
GET /api/posts?filter[user.email.$includes]=gmail
GET /api/posts?filter={"user.email.$includes":"gmail"}
```
[Click here for more infomation about filter operators](http-api/filter-operators)
### filterByTk
Filter by tk field. By default
- collection resource, tk is the primary key of the data table.
- association resource, tk is the targetKey field of the association.
```bash
GET /api/posts:get?filterByTk=1&fields=name,title&appends=tags
```
### sort
Sorting. When sorting in descending order, the fields are preceded by the minus sign `-`.
```bash
# createAt field in ascending order
GET /api/posts:get?sort=createdAt
# createAt field descending
GET /api/posts:get?sort=-createdAt
# Multiple fields sorted jointly, createAt field descending, title A-Z ascending
GET /api/posts:get?sort=-createdAt,title
```
### fields
Which fields to output
```bash
GET /api/posts:list?fields=name,title
Response 200 (application/json)
{
"data": [
{
"name": "",
"title": ""
}
],
"meta": {}
}
```
### appends
Appends a relationship field
### except
Which fields to exclude (not output) for use in query-related operations.
### whitelist
Whitelist
```bash
POST /api/posts:create?whitelist=title
{
"title": "My first post",
"date": "2022-05-19" # The date field will be filtered out and will not be written to the database
}
```
### blacklist
Blacklist
```bash
POST /api/posts:create?blacklist=date
{
"title": "My first post",
"date": "2022-05-19" # The date field will be filtered out and will not be written to the database
}
```
## Request Response
Format of the response
```ts
type ResponseResult = {
data?: any; // Master data
meta?: any; // Additional Data
errors?: ResponseError[]; // Errors
};
type ResponseError = {
code?: string;
message: string;
};
```
### Example
View list
```bash
GET /api/posts:list
Response 200 (application/json)
{
data: [
{
id: 1
}
],
meta: {
count: 1
page: 1,
pageSize: 1,
totalPage: 1
},
}
```
View details
```bash
GET /api/posts:get/1
Response 200 (application/json)
{
data: {
id: 1
}
}
```
Error
```bash
POST /api/posts:create
Response 400 (application/json)
{
errors: [
{
message: 'name must be required',
},
],
}
```