集合

集合是数据库中一组有名称的 JSON 文档，例如 customers 或 orders。同一集合中的文档可以有不同的字段：无需声明模式。

开始之前： 你只需要快速开始中的环境变量。本指南可以单独使用：它会创建一个名为 collections-demo 的集合，并在最后删除它。它不会改动 customers。

创建集合

curl -X POST "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"name": "collections-demo"}'

POST /v1/databases/$INCEPTIONDB_DATABASE/collections HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET
Content-Type: application/json

{"name": "collections-demo"}

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"encoding/json"
	"strings"
)

func main() {
	payload := map[string]any{"name": "collections-demo"}
	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		panic(err)
	}
	body := string(bodyBytes)

	req, err := http.NewRequest("POST", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections", strings.NewReader(body))
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))
	req.Header.Set("Content-Type", "application/json")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$payload = ['name' => 'collections-demo'];
$body = json_encode($payload);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
        'Content-Type: application/json',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
    "Content-Type": "application/json",
}

payload = {"name": "collections-demo"}

response = requests.request(
    "POST",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections",
    headers=headers,
    json=payload
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const payload = {"name": "collections-demo"};

const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections", {
  method: "POST",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET,
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var body = """
{"name": "collections-demo"}
""";

        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections"))
            .method("POST", HttpRequest.BodyPublishers.ofString(body))
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .header("Content-Type", "application/json")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

响应（201 Created）：

1{"defaults":{"id":"uuid()"},"indexes":0,"name":"collections-demo","total":0}

字段	含义
`name`	集合名称，用于它的所有 URL。
`total`	文档数量。
`indexes`	索引数量。
`defaults`	添加到缺少这些字段的文档中的值（见下文）。

名称区分大小写。集合已存在时返回 500，消息为 collection `collections-demo` already exists：如果你之前运行过本指南，请执行最后一步 删除集合，然后重新开始。

向不存在的集合插入会创建该集合，并使用默认值。如果 :insert 中的集合名称有拼写错误，文档会保存到一个新集合中，而不会报错。

列出集合

curl "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET"

GET /v1/databases/$INCEPTIONDB_DATABASE/collections HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	req, err := http.NewRequest("GET", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
}

response = requests.request(
    "GET",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections",
    headers=headers
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections", {
  method: "GET",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET
  }
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

1[{"defaults":{"id":"uuid()"},"indexes":0,"name":"collections-demo","total":0},{"defaults":{"id":"uuid()"},"indexes":0,"name":"customers","total":2}]

如果你完成了快速开始，列表中还会出现 customers。

获取单个集合

curl "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET"

GET /v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	req, err := http.NewRequest("GET", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections/collections-demo',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'GET',
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
}

response = requests.request(
    "GET",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections/collections-demo",
    headers=headers
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections/collections-demo", {
  method: "GET",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET
  }
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo"))
            .method("GET", HttpRequest.BodyPublishers.noBody())
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

1{"defaults":{"id":"uuid()"},"indexes":0,"name":"collections-demo","total":0}

集合不存在时返回 404 Not Found。

默认值

默认值会填充插入文档中缺少的字段。值为 null 的字段也会使用默认值。除了固定值，还有三种生成值：

值	生成
`"uuid()"`	一个随机唯一 ID，例如 `"35ec7d8f-96f4-4cdf-a09e-463c720e7c8c"`。
`"auto()"`	一个递增数字：1、2、3……永不重复，但可能跳号。
`"unixnano()"`	插入时间，单位为自 1970 年起的纳秒。

为每个新文档设置 ID、free 套餐和创建时间：

curl -X POST "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:setDefaults" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"id": "uuid()", "plan": "free", "created": "unixnano()"}'

POST /v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:setDefaults HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET
Content-Type: application/json

{"id": "uuid()", "plan": "free", "created": "unixnano()"}

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"encoding/json"
	"strings"
)

func main() {
	payload := map[string]any{"created": "unixnano()", "id": "uuid()", "plan": "free"}
	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		panic(err)
	}
	body := string(bodyBytes)

	req, err := http.NewRequest("POST", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:setDefaults", strings.NewReader(body))
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))
	req.Header.Set("Content-Type", "application/json")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$payload = ['created' => 'unixnano()', 'id' => 'uuid()', 'plan' => 'free'];
$body = json_encode($payload);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections/collections-demo:setDefaults',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
        'Content-Type: application/json',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
    "Content-Type": "application/json",
}

payload = {"created": "unixnano()", "id": "uuid()", "plan": "free"}

response = requests.request(
    "POST",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections/collections-demo:setDefaults",
    headers=headers,
    json=payload
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const payload = {"created": "unixnano()", "id": "uuid()", "plan": "free"};

const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections/collections-demo:setDefaults", {
  method: "POST",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET,
    "Content-Type": "application/json"
  },
  body: JSON.stringify(payload)
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var body = """
{"id": "uuid()", "plan": "free", "created": "unixnano()"}
""";

        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:setDefaults"))
            .method("POST", HttpRequest.BodyPublishers.ofString(body))
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .header("Content-Type", "application/json")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

1{"created":"unixnano()","id":"uuid()","plan":"free"}

现在插入一个只有姓名和邮箱的文档：

curl -X POST "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:insert" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET" \
  -H "Content-Type: application/x-ndjson" \
  -d '{"name": "Margaret Hamilton", "email": "margaret@example.com"}'

POST /v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:insert HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET
Content-Type: application/x-ndjson

{"name": "Margaret Hamilton", "email": "margaret@example.com"}

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"encoding/json"
	"strings"
)

func main() {
	payload := map[string]any{"email": "margaret@example.com", "name": "Margaret Hamilton"}
	bodyBytes, err := json.Marshal(payload)
	if err != nil {
		panic(err)
	}
	body := string(bodyBytes)

	req, err := http.NewRequest("POST", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:insert", strings.NewReader(body))
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))
	req.Header.Set("Content-Type", "application/x-ndjson")

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$payload = ['email' => 'margaret@example.com', 'name' => 'Margaret Hamilton'];
$body = json_encode($payload);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections/collections-demo:insert',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_POSTFIELDS => $body,
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
        'Content-Type: application/x-ndjson',
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
    "Content-Type": "application/x-ndjson",
}

payload = {"email": "margaret@example.com", "name": "Margaret Hamilton"}

response = requests.request(
    "POST",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections/collections-demo:insert",
    headers=headers,
    json=payload
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const payload = {"email": "margaret@example.com", "name": "Margaret Hamilton"};

const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections/collections-demo:insert", {
  method: "POST",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET,
    "Content-Type": "application/x-ndjson"
  },
  body: JSON.stringify(payload)
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var body = """
{"name": "Margaret Hamilton", "email": "margaret@example.com"}
""";

        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:insert"))
            .method("POST", HttpRequest.BodyPublishers.ofString(body))
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .header("Content-Type", "application/x-ndjson")
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

1{"created":1793164963789350717,"email":"margaret@example.com","id":"35ec7d8f-96f4-4cdf-a09e-463c720e7c8c","name":"Margaret Hamilton","plan":"free"}

默认值只作用于之后插入的文档，已有文档不会改变。setDefaults 会把你发送的字段添加到当前默认值中，并替换已存在的同名字段。要删除某个默认值，把它设为 null：{"plan": null}。

大小

文档占用的内存、磁盘大小，以及每个索引以 index.<名称> 表示的内存，单位为字节：

curl -X POST "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:size" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET"

POST /v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:size HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	req, err := http.NewRequest("POST", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:size", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections/collections-demo:size',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
}

response = requests.request(
    "POST",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections/collections-demo:size",
    headers=headers
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections/collections-demo:size", {
  method: "POST",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET
  }
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:size"))
            .method("POST", HttpRequest.BodyPublishers.noBody())
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

1{"disk":265,"memory":203}

删除集合

这会删除集合及其所有文档和索引，无法撤销：运行前请检查 URL 中的名称。删除本指南的集合 collections-demo：

curl -X POST "https://inceptiondb.hola.cloud/v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:dropCollection" \
  -H "Api-Key: $INCEPTIONDB_API_KEY" \
  -H "Api-Secret: $INCEPTIONDB_API_SECRET"

POST /v1/databases/$INCEPTIONDB_DATABASE/collections/collections-demo:dropCollection HTTP/1.1
Host: inceptiondb.hola.cloud
Api-Key: $INCEPTIONDB_API_KEY
Api-Secret: $INCEPTIONDB_API_SECRET

// Go 1.21+, standard library only. Save as main.go and run: go run main.go
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	req, err := http.NewRequest("POST", "https://inceptiondb.hola.cloud/v1/databases/" + os.Getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:dropCollection", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("Api-Key", os.Getenv("INCEPTIONDB_API_KEY"))
	req.Header.Set("Api-Secret", os.Getenv("INCEPTIONDB_API_SECRET"))

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	responseBody, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status)
	fmt.Println(string(responseBody))
}

<?php
// PHP 8+ with the curl extension. Save as example.php and run: php example.php

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://inceptiondb.hola.cloud/v1/databases/' . getenv('INCEPTIONDB_DATABASE') . '/collections/collections-demo:dropCollection',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'Api-Key: ' . getenv('INCEPTIONDB_API_KEY'),
        'Api-Secret: ' . getenv('INCEPTIONDB_API_SECRET'),
    ],
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new Exception(curl_error($ch));
}
echo curl_getinfo($ch, CURLINFO_RESPONSE_CODE), "\n", $response, "\n";
curl_close($ch);

# Python 3.8+. Install: pip install requests. Save as example.py and run: python example.py
import os
import requests

headers = {
    "Api-Key": os.environ["INCEPTIONDB_API_KEY"],
    "Api-Secret": os.environ["INCEPTIONDB_API_SECRET"],
}

response = requests.request(
    "POST",
    "https://inceptiondb.hola.cloud/v1/databases/" + os.environ["INCEPTIONDB_DATABASE"] + "/collections/collections-demo:dropCollection",
    headers=headers
)

print(response.status_code)
print(response.text)

// Node.js 18+. Save as example.mjs and run: node example.mjs
const response = await fetch("https://inceptiondb.hola.cloud/v1/databases/" + process.env.INCEPTIONDB_DATABASE + "/collections/collections-demo:dropCollection", {
  method: "POST",
  headers: {
    "Api-Key": process.env.INCEPTIONDB_API_KEY,
    "Api-Secret": process.env.INCEPTIONDB_API_SECRET
  }
});

console.log(response.status);
console.log(await response.text());

// Java 17+, standard library only. Save as Main.java and run: java Main.java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        var request = HttpRequest.newBuilder()
            .uri(URI.create("https://inceptiondb.hola.cloud/v1/databases/" + System.getenv("INCEPTIONDB_DATABASE") + "/collections/collections-demo:dropCollection"))
            .method("POST", HttpRequest.BodyPublishers.noBody())
            .header("Api-Key", System.getenv("INCEPTIONDB_API_KEY"))
            .header("Api-Secret", System.getenv("INCEPTIONDB_API_SECRET"))
            .build();

        var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
        System.out.println(response.statusCode());
        System.out.println(response.body());
    }
}

响应为 204 No Content。删除不存在的集合会返回 500，消息为 collection `collections-demo` not found。